CN105006850A - Electronic load switching system - Google Patents
Electronic load switching system Download PDFInfo
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- CN105006850A CN105006850A CN201510024228.9A CN201510024228A CN105006850A CN 105006850 A CN105006850 A CN 105006850A CN 201510024228 A CN201510024228 A CN 201510024228A CN 105006850 A CN105006850 A CN 105006850A
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- switching element
- battery
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- switching device
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- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000004065 semiconductor Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本发明揭示一种电子式负载切换系统，包括输入整流单元、控制单元、第一、第二、第三、第四、第五切换元件、第一及第二保护元件，用以形成充电回路及放电回路，且输入整流单元、第一至第五切换元件是由控制单元控制，藉以切换充电回路、放电回路，其中输入整流单元、控制单元、第一、第二切换元件、第一保护元件、电池、第四切换元件配合外部电源单元形成充电回路，而第二保护元件、第五切换元件、控制单元、第三切换元件、电池形成放电回路。本发明的第一至第五切换元件可为金氧半晶体管实现，能提高切换速度，并避免发生高压电弧。
The invention discloses an electronic load switching system, which includes an input rectification unit, a control unit, first, second, third, fourth and fifth switching elements, first and second protection elements, and is used to form a charging circuit and The discharge circuit, and the input rectification unit, the first to the fifth switching elements are controlled by the control unit to switch the charging circuit and the discharge circuit, wherein the input rectification unit, the control unit, the first and second switching elements, the first protection element, The battery, the fourth switching element cooperate with the external power supply unit to form a charging circuit, and the second protection element, the fifth switching element, the control unit, the third switching element and the battery form a discharging circuit. The first to fifth switching elements of the present invention can be implemented as metal-oxide-semiconductor transistors, which can increase the switching speed and avoid the occurrence of high-voltage arcs.
Description
Technical field
The invention relates to a kind of electronic type load switched system, especially utilize multiple transistor and/or multiple diode to replace relay to realize the electronics handoff functionality of different electric loop.
Background technology
More prevalent along with various portable electronic devices, such as mobile phone, panel computer, notebook computer, electric game device, bluetooth earphone, DVD player, remote controller, wireless mouse, Wireless Keyboard etc., there is provided the battery of power source also more for important, especially need to work long hours and discharge and recharge number of times high-performance secondary cell the more, such as gently, thin, short, little high power capacity serondary lithium battery.
The charge-discharge characteristic of secondary cell is extremely important, comprises the electric current of charging, voltage and time, the electric current of electric discharge, voltage and time, normally starts charging procedure when discharge capability drops to default value, and when charging reaches full conjunction star t-up discharge program.Due to the electrochemical properties of battery itself, usually need to open stage beginning in charging and use larger charging voltage or larger charging current, until battery stable after, to determine voltage or constant-current charge, by the time, time close to full conjunction, need to carry out last charge step with lower electric current.For discharge procedures, be generally and determine electric current, determine voltage or constant-resistance discharge, depending on actual demand.Therefore, in whole charge and discharge process, the non-essential resistance that battery itself senses suitably can change along with the time, that is the load of battery is variation value, but not fixed value.
In practice, the discharge and recharge of industry test secondary cell uses to have the load switched system initiatively changing load, and its main frame can, with reference to figure 1, be the schematic diagram of prior art load switched system.In FIG; the load switched system of prior art comprises input rectifying unit QR, controller 11, controls transistor 13, vent diverter 15, first relay G1, the second relay G2, the 3rd relay G3, the 4th relay G4, protection component FU; and be conducting or closedown by controller 11 control inputs rectification unit QR, control transistor 13, vent diverter 15, first relay G1, the second relay G2, the 3rd relay G3, the 4th relay G4, and then formed charge circuit and discharge loop.
Specifically; charge circuit comprises sequentially interconnective input rectifying unit QR, control transistor 13, vent diverter 15, first relay G1, protection component FU, battery BTT and the 4th relay G4; and be controlled to conducting by controller 11; as shown in the charging direction D1 in figure; second relay G2, the 3rd relay G3 are for closing simultaneously, make external power source unit 20 provide external power source PWR and charge to battery BTT.
In addition, discharge loop comprises sequentially interconnective second relay G2, control transistor 13, vent diverter 15, the 3rd relay G3 and battery BTT, as shown in the course of discharge D2 in figure, and be controlled to conducting by controller 11, first relay G1 and the 4th relay G4 is for closing simultaneously, provides discharge path to battery BTT.
Above-mentioned first relay G1, the second relay G2, the 3rd relay G3, the 4th relay G4 are generally relay, and mainly mat switches different mechanical contact point and reaches conducting or closedown.
But the major defect of prior art relay is that the access times of mechanical contacts are restricted, and the switch speed of mechanical contacts is quite low; especially; charging and discharge loop are when momentary breaks, and the high-voltage arc usually can caused danger, affects the fail safe of operation.
Therefore, be sought after a kind of electronic type load switched system, transistor is utilized to realize switching device, solve the access times restriction of traditional type relay mechanical contacts, and can avoid, when instantaneous trip charge circuit or discharge loop, high-voltage arc occurs, improve the fail safe of electric operation, use the problem solving above-mentioned prior art.
Summary of the invention
Main purpose of the present invention is to provide a kind of electronic type load switched system, comprises input rectifying unit, control unit, first switching device, second switching device, 3rd switching device, 4th switching device, 5th switching device, first protection component and the second protection component, in order to form charge circuit and discharge loop, wherein input rectifying unit, first switching device, second switching device, 3rd switching device, 4th switching device, 5th switching device is controlled by control unit, uses switching charge circuit, discharge loop, and charge circuit is to provide external power source unit charges to battery, and also battery can utilize discharge loop to discharge, wherein external power source unit, input rectifying unit, control unit, first switching device, second switching device, first protection component, battery, 4th switching device forms charge circuit, and the second protection component, 5th switching device, control unit, 3rd switching device, battery forms discharge loop.
Above-mentioned first switching device, the second switching device, the 3rd switching device, the 4th switching device, the 5th switching device are realized by transistor, such as golden oxygen half (MOS) transistor, thus the access times restriction of traditional type relay mechanical contacts is solved, and improve switch speed, can avoid, when instantaneous trip charge circuit or discharge loop, high-voltage arc occurs simultaneously, improve the fail safe of electric operation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of display prior art load switched system;
Fig. 2 is the system schematic of display first embodiment of the invention electronic type load switched system;
Fig. 3 is another exemplary system schematic diagram of display first embodiment of the invention electronic type load switched system;
Fig. 4 is the system schematic of display second embodiment of the invention electronic type load switched system; And
Fig. 5 is another exemplary system schematic diagram of display second embodiment of the invention electronic type load switched system.
Wherein, description of reference numerals is as follows:
10 control units
11 controllers
13 control transistor
15 vent diverters (SHUNT)
20 external power source unit
BTT battery
D1 charges direction
D2 course of discharge
F1 first protection component
F2 second protection component
FU protection component
G1 first relay
G2 second relay
G3 the 3rd relay
G4 the 4th relay
PWR external power source
QR input rectifying unit
SW1 first switching device
SW2 second switching device
SW3 the 3rd switching device
SW4 the 4th switching device
SW5 the 5th switching device
Embodiment
Below coordinate graphic and component symbol to do more detailed description to embodiments of the present invention, can implement according to this after studying this specification carefully to make those of ordinary skill in the art.
First, please refer to Fig. 2, is the system schematic of first embodiment of the invention electronic type load switched system.As shown in Figure 2; electronic type load switched system according to first embodiment of the invention mainly comprises input rectifying unit QR, control unit 10, first switching device SW1, the second switching device SW2, the 3rd switching device SW3, the 4th switching device SW4, the 5th switching device SW5, the first protection component F1 and the second protection component F2; discharge in order to provide battery BTT; or charged by external power source unit 20 couples of battery BTT, that is equivalence is provide electronic type load to battery BTT in switching at runtime mode.Further, control unit 10 comprises controller 11, controls transistor 13 and vent diverter (SHUNT) 15, and the gate of input rectifying unit QR, the first switching device SW1, the second switching device SW2, the 3rd switching device SW3, the 4th switching device SW4, the 5th switching device SW5 controlled by controller 11, and controller 11 controls gate and the vent diverter 15 of transistor 13 further, uses and provides charge circuit and discharge loop.
Above-mentioned input rectifying unit QR, first switching device SW1, second switching device SW2, 3rd switching device SW3, 4th switching device SW4, 5th switching device SW5 can be realized by transistor, such as there is very fast switch speed and golden oxygen half (MOS) transistor compared with low consumpting power, or input rectifying unit QR, second switching device SW2 and the 5th switching device SW5 can be diode, wherein it should be noted that, the embodiment of Fig. 2 uses transistor to form input rectifying unit QR, first switching device SW1, second switching device SW2, 3rd switching device SW3, 4th switching device SW4, 5th switching device SW5.
In addition, battery BTT is can the secondary cell of repeatedly discharge and recharge.
Specifically, the positive pole of external power source unit 20, input rectifying unit QR, control transistor 13, vent diverter 15, first switching device SW1, second switching device SW2, first protection component F1, the positive pole of battery BTT, the negative pole of battery BTT, the negative pole of the 4th switching device SW4 and external power source unit 20 sequentially connects and forms charge circuit, as shown in the charging direction D1 in figure, wherein input rectifying unit QR, control transistor 13, vent diverter 15, first switching device SW1, second switching device SW2, 4th switching device SW4 is controlled to conducting by controller 11, 3rd switching device SW3 and the 5th switching device SW5 is for closing simultaneously.Therefore, external power source unit 20 can provide external power source PWR, and utilizes charge circuit and charge to battery BTT.
In addition, the positive pole of battery BTT, second protection component F2, 5th switching device SW5, control transistor 13, vent diverter 15, the negative pole of the 3rd switching device SW3 and battery BTT sequentially connects and forms discharge loop, as shown in the course of discharge D2 in figure, and by controller 11 by the 5th switching device SW5, control transistor 13, vent diverter 15, 3rd switching device SW3 is controlled to conducting, and the first switching device SW1, second switching device SW2, 4th switching device SW4 is for closing, battery BTT is made to utilize discharge loop and to discharge, that is discharge loop is used as the load circuit of battery BTT.
Electronic type load switched system of the present invention can utilize and suitably switch charge circuit and discharge loop, use the charging of test battery BTT, flash-over characteristic, or whether the electrical characteristic of inspection battery BTT meets default specification, such as charging voltage, charging current, chargeable capacity, charging times, discharge voltage, discharging current, can discharge capacity, impedance variation etc.Specific practice is, controller 11 can obtain the precision current relevant to the charging current of battery BTT and discharging current via vent diverter 15, and coordinate needed for charging, flash-over characteristic, optimal charge set by specification, the discharge curve of such as battery BTT, the conducting degree of the transistor 13, first of control control according to this switching device SW1, the second switching device SW2, the 3rd switching device SW3, the 4th switching device SW4, the 5th switching device SW5 or closedown, use the On current controlling charging, electric discharge.Such as, when charging, the conducting degree that controls transistor 13 can be changed and directly control external power source unit 20 for induced current, or adjustment the first switching device SW1, the second switching device SW2, the 4th switching device SW4 gate driving voltage and change the equivalent resistance of charge circuit, and then control the charging current of battery BTT.
First protection component F1 and the second protection component F2 can be fuse or electromagnetic valve switch, in order to form open circuit when electric current, voltage or electrical power exceed default rated value, uses other element in protective circuit, avoids damaging.
In addition, controller 11 can have data storing function, in order to record the whole charging of battery BTT, the electric data of discharge cycles, and can the suitable interface of mat, such as Ethernet, and be sent to long-range processing unit (not shown) further, such as server host, carry out more careful electrical analysis.Such as, the made electricity capacity of battery itself is the supply of electric power quality representing battery, generally speaking, electricity capacity can be made to drop to a certain degree and namely represent that battery needs often charging and do not reach the requirement of default supply of electric power time, charging times now can be used as the index that battery uses life time usually.
Fig. 3 is another system schematic of first embodiment of the invention electronic type load switched system, its technical characteristic is similar to Fig. 2, and main difference point is that the electronic type load switched system of the second embodiment realizes input rectifying unit QR and the 5th switching device SW5 with diode, be different from Fig. 1 the input rectifying unit QR and the 5th switching device SW5 that utilize MOS transistor to form.That is, in the equivalent function of electric operation, input rectifying unit QR in Fig. 3 and the 5th switching device SW5 utilizes diode to provide rectified action, input rectifying unit QR is made to be conducting when charging, and the 5th switching device SW5 is for closing, therefore by external power source unit 20 for induced current can through input rectifying unit QR traffic organising transistor 13, the 5th switching device SW5 can not be flow through, reach buffer action.Same, when discharging, input rectifying unit QR is closedown and the 5th switching device SW5 is conducting, makes discharging current can flow through the 5th switching device SW5 and arrives and control transistor 13, and can not flow through input rectifying unit QR, guaranteeing that discharge path is interference-free.The characteristic of all the other similar elements does not repeat them here.
Same, the second switching device SW2 of the first embodiment also can replace transistor with diode, and can show the electric function of equity mutually.
With reference to figure 4; for the system schematic of second embodiment of the invention electronic type load switched system; and it should be noted that; the technical characteristic of second embodiment of Fig. 4 is similar to first embodiment of Fig. 2; main difference point is that the electronic type load switched system of the second embodiment does not comprise the second protection component F2, and remaining element is identical.That is charge circuit and discharge loop all only use the first protection component F1, and the charge circuit being different from the first embodiment is use first protection component F1; and discharge loop uses the second protection component F2; circuit structure can be simplified further, reduce costs, improve operational stability.The characteristic of all the other similar elements does not repeat them here.
In addition, with further reference to Fig. 5, for another exemplary system schematic diagram of second embodiment of the invention electronic type load switched system, mainly be similar to the framework of Fig. 4, difference is that the exemplary embodiment of Fig. 5 uses diode to form input rectifying unit QR and the 5th switching device SW5, and Fig. 4 utilizes MOS transistor.The characteristic of all the other similar elements does not repeat them here.
Same, the second switching device SW2 of the second embodiment also can replace transistor with diode, and can show the electric function of equity mutually.
In sum, main feature of the present invention is to utilize transistor to realize switching device, rechargeable battery to be measured can be supplied to according to the optimal charge preset and discharging condition to switch charge path and discharge path to carry out charging and discharge cycles, especially can test for a long time and detect the electrical characteristic of the charging and discharging of rechargeable battery, the switch current such as charge, discharged and switched voltage, the electric current and voltage curve etc. of charging, electric discharge.Therefore, electronic type load switched system of the present invention can solve the access times restriction of traditional type relay mechanical contacts and the problem of loose contact, and the switch speed improved between charge circuit and discharge loop, also can avoid further, when instantaneous trip charge circuit or discharge loop, high-voltage arc occurs simultaneously, improve the fail safe of electric operation.
Another feature of the present invention is the 5th switching device on the input rectifying unit on charge circuit and discharge loop, uses diode to replace transistor, use simplification integrated circuit, improve electric operation efficiency and stability, and reduce costs.
By in above-mentioned explanation, can it is evident that, technical characteristic of the present invention does not see published publication, periodical, magazine, exhibition, the network information, therefore possess skills novelty, and the present invention can specifically improve the testing efficiency of existing battery charging and discharging and reduce costs, thus really significantly promote the usability of industry.
The foregoing is only to explain preferred embodiment of the present invention, not attempt does any pro forma restriction to the present invention according to this.Therefore, all have any modification for the present invention or the change done under identical invention spirit, all must be included in the category that the invention is intended to protect.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103114734 | 2014-04-23 | ||
| TW103114734A TWI523371B (en) | 2014-04-23 | 2014-04-23 | Electronic load switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105006850A true CN105006850A (en) | 2015-10-28 |
Family
ID=54379414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510024228.9A Pending CN105006850A (en) | 2014-04-23 | 2015-01-16 | Electronic load switching system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105006850A (en) |
| TW (1) | TWI523371B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000156938A (en) * | 1998-11-19 | 2000-06-06 | Hokuto Denko Kk | Battery charge / discharge test equipment |
| TW584337U (en) * | 2003-01-17 | 2004-04-11 | Chiun-Jr Lin | Self maintenance apparatus of serially connected battery set |
| JP4000719B2 (en) * | 1999-06-24 | 2007-10-31 | 株式会社明電舎 | Charge / discharge device for battery or electric double layer capacitor |
| CN101135721A (en) * | 2007-08-03 | 2008-03-05 | 华北电力大学 | A Topological Circuit Applicable to Comprehensive Performance Test of Battery Pack |
| CN101599656A (en) * | 2009-04-16 | 2009-12-09 | 中国石油大学(华东) | A charging and discharging machine for a power storage battery test system |
| CN202872397U (en) * | 2012-09-03 | 2013-04-10 | 青岛美凯麟科技有限公司 | Charge-discharge shifting device for low-tension battery test equipment |
| CN204391812U (en) * | 2014-04-23 | 2015-06-10 | 林新辉 | Electronic Load Switching Architecture |
-
2014
- 2014-04-23 TW TW103114734A patent/TWI523371B/en not_active IP Right Cessation
-
2015
- 2015-01-16 CN CN201510024228.9A patent/CN105006850A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000156938A (en) * | 1998-11-19 | 2000-06-06 | Hokuto Denko Kk | Battery charge / discharge test equipment |
| JP4000719B2 (en) * | 1999-06-24 | 2007-10-31 | 株式会社明電舎 | Charge / discharge device for battery or electric double layer capacitor |
| TW584337U (en) * | 2003-01-17 | 2004-04-11 | Chiun-Jr Lin | Self maintenance apparatus of serially connected battery set |
| CN101135721A (en) * | 2007-08-03 | 2008-03-05 | 华北电力大学 | A Topological Circuit Applicable to Comprehensive Performance Test of Battery Pack |
| CN101599656A (en) * | 2009-04-16 | 2009-12-09 | 中国石油大学(华东) | A charging and discharging machine for a power storage battery test system |
| CN202872397U (en) * | 2012-09-03 | 2013-04-10 | 青岛美凯麟科技有限公司 | Charge-discharge shifting device for low-tension battery test equipment |
| CN204391812U (en) * | 2014-04-23 | 2015-06-10 | 林新辉 | Electronic Load Switching Architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI523371B (en) | 2016-02-21 |
| TW201541802A (en) | 2015-11-01 |
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Application publication date: 20151028 |