CN1060295C - Automotive battery charging voltage control circuit - Google Patents
Automotive battery charging voltage control circuit Download PDFInfo
- Publication number
- CN1060295C CN1060295C CN97111567A CN97111567A CN1060295C CN 1060295 C CN1060295 C CN 1060295C CN 97111567 A CN97111567 A CN 97111567A CN 97111567 A CN97111567 A CN 97111567A CN 1060295 C CN1060295 C CN 1060295C
- Authority
- CN
- China
- Prior art keywords
- battery
- voltage
- thyristor
- battery terminal
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007600 charging Methods 0.000 title claims abstract description 34
- 230000005284 excitation Effects 0.000 claims description 2
- 230000005764 inhibitory process Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 6
- 101100514482 Arabidopsis thaliana MSI4 gene Proteins 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
- H02J7/1492—Regulation of the charging current or voltage otherwise than by variation of field by means of controlling devices between the generator output and the battery
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Control Of Charge By Means Of Generators (AREA)
Abstract
The voltage control circuit has a charging terminal connected to the output of an alternator, and a thyristor connected in series between the alternator output and the battery terminal. Overvoltage detection uses a voltage measuring circuit to lower the gate voltage of the thyristor over a timed period when the measured battery voltage exceeds a preset threshold. The gate current is diverted to the battery during the overvoltage period by transistor circuit that has its base controlled by the voltage measurement circuit. The timing of the lowering of the gate voltage is set by an RC timing circuit.
Description
The present invention relates to battery charging voltage control circuit.
Usually battery and combine with internal combustion engine a battery charging voltage control circuit is set between the driven vehicles alternating current generator (ACG) onboard, each the equipment spare on the car is by battery and/or ACG power supply.Typically, must even still can continue the operation of vehicle when battery discharges fully or when not connecting battery for some reason.
Circuit shown in Fig. 3 is known to be the conventional batteries charging voltage control circuit of motorcycle, and sort circuit has the measure that prevents to disconnect battery.In the circuit of Fig. 3, ACG1 is suitable for not shown internal combustion engine drive, and the voltage output end of ACG1 is connected with the charging end CH of battery charging voltage control circuit 12.
Serve as for the battery terminal BT of the voltage output end of battery charging voltage control circuit 12 and flashing relay 3, stop lamp SL, ignition control circuit CDI and battery 4 is connected, wherein ignition control circuit CDI is that a example as equipment on the car provides.Flashing relay 3 is connected with glitter right lamp RL and left photoflash lamp LL, can be luminous off and on by one in these two photoflash lamps of selector switch SW1 selection.Also optionally light termination lamp SL by connecting switch SW 2.
Battery charging voltage control circuit 12 comprises a thyristor SCR who is connected between two terminal CH and the BT.Resistor R 1, diode D5 and the triode Q1 ground connection of node between the anode of charging terminal CH and thyristor SCR through being connected in series.Node between resistor R 1 and the diode D5 is connected through the control utmost point of a diode D2 who is connecting usually and thyristor SCR, and this control utmost point also is connected through the negative electrode and the battery terminal BT of resistor R 2 and thyristor.
The line-to-ground that node between the negative electrode of thyristor SCR and the battery terminal BT normally is connected in series through the order according to diode D3-resistor R 3-capacitor C1.Node between diode D3 and the resistor R 3 is connected through the base stage of Zener diode and triode Q1.
In having this battery charging voltage control circuit of said structure, under the normal condition to battery 4 electric chargings, battery is by the positive half wave component charging of the voltage that appears at terminal BT place.When cell voltage becomes the threshold voltage that is higher than Zener diode ZD, thereby triode Q1 connects with the voltage at the control utmost point place that stops control electrode current or drop-down thyristor and forbids the connection of thyristor SCR and therefore avoid the surcharge of battery.
Now, with reference to Fig. 4, consider that battery breaks down, do not connect situations such as going up or can not provide on the contrary substantial voltage.For example, when not connecting battery, capacitor C1 is applied to the positive half wave component charging of the voltage on the battery terminal BT by ACG1, in case and the voltage at capacitor C1 two ends surpass the threshold voltage of Zener diode ZD, then connect triode Q1.This makes SCR disconnect again and causes the voltage at capacitor C1 two ends to descend in time.The duration of the on-state of triode Q1 is by capacitor C1 and resistor R 3 defined time constant decisions, and the voltage waveform at battery terminal B place is for example shown in the second curve of counting from the top down among Fig. 4.In other words, during triode Q1 connected, even produce positive voltage at charging terminal CH place, thyristor kept disconnecting, thereby does not produce voltage at battery terminal BT place.Like this, the voltage-regulation Cheng Buhui at battery terminal BT place surpasses the level of certain regulation, and can avoid overcharging of battery 4.
But, when under disconnecting battery, connecting among photoflash lamp LL and the RL, because the inductance of flashing relay 3 can form negative voltage at battery terminal BT place, shown in the 3rd curve of counting from the top down among Fig. 4.Therefore, even connect and node A when being in ground state at triode Q1, the cathode terminal of thyristor SCR may become negative voltage, and electric current may flow into the negative electrode of thyristor SCR through resistor R 1 and diode D2.Like this, can not forbid the connection of thyristor SCR, and in each cycle, positive waveform can occur, thereby can not control the voltage at battery terminal BT place, and the load that is connected with battery terminal BT may suffer extra high voltage at battery terminal BT place.
When the battery that correctly works was connected with battery terminal, the conventional batteries charging voltage control circuit can move satisfactorily.Even when the output of inductive load and this control circuit is connected, as long as Connect Power pond and battery are when working, battery can the absorption inductor load switches on and off and the negative voltage that produces.But, when the output at this control circuit connects inductive load, and when not having battery, then the negative voltage of control circuit output may hinder the correct control action of control circuit, and the high voltage as a result that may form in control circuit can cause unwanted results, adopt such as needs and relatively costly can bear high-tension parts, and equipment applies undesirable high voltage on car.
In view of these problems of prior art, main purpose of the present invention provides a kind of even still can prevent to form the automotive battery charging voltage control circuit of extra high voltage when disconnecting battery.
Second purpose of the present invention provides a kind of even still can keep the automotive battery charging voltage control circuit of the operation of satisfaction when load comprises inductance component.
The 3rd purpose of the present invention provides a kind of automotive battery charging voltage control circuit that can both make economically and use reliably under all conditions.
The invention provides a kind of automotive battery charging voltage control circuit, comprising: the charging terminal that is connected with the lead-out terminal of alternating current generator; Be applicable to the battery terminal that is connected with battery and load; Be connected in series in the thyristor between charging terminal and the battery terminal, the control utmost point of this thyristor is connected to the anode of this thyristor; The battery over-voltage protection device, be connected battery terminal and between the node of the anode of thyristor and control interpolar, be used for flowing transistorized connection to prevent forming any overvoltage at the battery terminal place when inhibition gate when the detected voltage in battery terminal place is higher than threshold level; Control electrode current part flow arrangement, it is connected and is used between the control utmost point of thyristor and the battery terminal control electrode current is diverted to battery terminal, controls the utmost point thereby prevent to control the electrode current inflow when forming negative voltage when over-voltage protection device move and at the battery terminal place.
Battery terminal can have negative voltage, and when for example switching on and off the load with inductance component under disconnecting the situation that battery or electric current discharge fully, thereby the negative voltage that this load causes can be applied on the battery terminal.Optionally forbid battery over-voltage protection device that thyristor connects can with any kind of to switch on and off voltage that thyristor keeps the battery terminal place by reasonable time be that the device of constant is realized.Typically, the battery over-voltage protection device comprises a switch element such as triode, it is applicable to the voltage of the control utmost point of the thyristor of optionally leaving behind when excitation, and comprising a timing circuit such as the CR time constant circuit, timing circuit is an energized condition by preset time maintained switch element when the detection voltage at battery terminal place is higher than threshold level.
In order simply and effectively the control electrode current to be diverted to thyristor battery terminal side, control electrode current part flow arrangement can be made up of a diode, and this diode is connected switch element usually between the battery terminal side of the cathode side of thyristor end far away and thyristor.
Referring now to description of drawings the present invention, accompanying drawing is:
Fig. 1 is the circuit diagram according to the basic element of character of automotive battery charging voltage control circuit of the present invention;
Fig. 2 represents according to each bar waveform of the present invention;
Fig. 3 is the circuit diagram of the basic element of character of conventional automotive battery charging voltage control circuit;
Fig. 4 represents each the bar waveform according to prior art.
Fig. 1 represents to use a kind of automotive battery charging voltage control circuit 2 of the present invention, wherein corresponding to each parts of above-mentioned prior art with identical numeral.Although diode D5 is connected with the collector electrode of three utmost point Q1 in the prior art, comprise a diode D1 who is connected with the emitter of triode Q1 according to the circuit of Fig. 1 of the present invention.In addition, through the normal diode D4 that connects, the node between the emitter of triode Q1 and the diode D1 is connected with battery terminal BT.By this way, when under battery terminal BT place generation negative voltage, connecting triode Q1, through triode Q1 and diode D4 the control electrode current of thyristor SCR is diverted to battery terminal BT, thereby forbids the connection of thyristor SCR.
If the battery 4 in fragmentary 1 circuit, in case surpassing the defined threshold voltage triode of Zener diode ZD Q1, just connects the voltage of battery terminal, and be switched on or switched off repeatedly at interval by regular time, this regular time at interval with prior art in the same depending on by capacitor C1 and resistor R 3 official hour constants.
Usually, the on-state of triode Q1 causes the control utmost point ground connection of thyristor SCR, thereby forbids the connection of thyristor SCR.The duration of thyristor SCR off-state is by the duration decision of the on-state of triode Q1.Like this, the duration long enough by selecting thyristor SCR off-state might even prevent at the excessive voltage of battery terminal BT place appearance when the disconnection battery to prevent positive voltage level occurring at battery terminal BT place in each cycle.
When under disconnecting battery, encouraging flashing relay 3, because the inductance of flashing relay 3 produces negative voltage at battery terminal BT place.
According to the present invention, when connecting triode Q1, the control utmost point of thyristor SCR is connected with battery terminal BT.Therefore, the node A that is arranged in thyristor SCR anode one side with respect to the voltage of thyristor SCR negative electrode shown in the curve at place, Fig. 2 bottom.In other words, when forming negative voltage and triode Q1 conducting at battery terminal BT place, because the voltage that node A (it is positioned at the anode-side of thyristor SCR) locates is drop-down by the negative voltage of battery terminal BT, no longer be held at ground level, the control utmost point can not receive the enough electric currents that make thyristor SCR conducting, thereby thyristor SCR keep to disconnect as from up to down the 4th curve of number be not among Fig. 2.
Shown in the bottom curve of Fig. 2, when triode Q1 conducting, can make the threshold voltage V that is lower than thyristor SCR through the pressure drop on the circuit of diode D4
ThThereby thyristor SCR can conducting when producing negative voltage at the battery terminal place.
Like this, according to the present invention, when producing negative voltage at the battery terminal place even connect when disconnected under disconnecting the situation that battery or battery discharge fully because when having the load of inductance element, flow to battery terminal by control electrode current thyristor SCR, prevented the conducting of thyristor, thereby prevented that by the control of normality disconnection inhibiting apparatus the overtension at battery terminal place from rising.
Although the present invention utilizes its preferred forms explanation, clearly, under the prerequisite of the scope of being stated in the appended claims book of the present invention, those skilled in the art can carry out various improvement and modification.
Claims (5)
1. automotive battery charging voltage control circuit comprises:
A charging terminal that is connected with the lead-out terminal of alternating current generator;
One is applicable to and a battery and the battery terminal that load is connected;
A thyristor that is connected in series between charging terminal and the battery terminal, the control utmost point of this thyristor is connected to the anode of this thyristor; And
The battery over-voltage protection device, be connected between battery terminal and the node, be used for flowing transistorized connection to prevent forming any overvoltage at the battery terminal place when inhibition gate when the detected voltage in battery terminal place is higher than threshold level, this node is between the anode and the control utmost point of thyristor;
It is characterized in that this automotive battery charging voltage control circuit also comprises:
Control electrode current part flow arrangement, be connected and be used between the control utmost point of thyristor and the battery terminal control electrode current is diverted to battery terminal, control the utmost point thereby prevent to control the electrode current inflow when when over-voltage protection device move and at the battery terminal place, forming negative voltage.
2. according to the automotive battery charging voltage control circuit of claim 1, it is characterized in that, over-voltage protection device comprises a switch element and a timing circuit, be applicable to during this switch element excitation that the voltage at the control utmost point place of drop-down thyristor arrives the essence earth level, and this timing circuit when being higher than threshold level, the detected voltage in battery terminal place is in energized condition by preset time cycle maintained switch element.
3. according to the automotive battery charging voltage control circuit of claim 2, it is characterized in that switch element is made of transistor.
4. according to the automotive battery charging voltage control circuit of claim 2, it is characterized in that timing circuit is made of the CR time constant circuit.
5. according to the automotive battery charging voltage control circuit of claim 2, it is characterized in that, control electrode current part flow arrangement is made of a diode, this diode has anode and negative electrode, anode is connected to the end of switch element away from the anode-side of thyristor, and negative electrode is connected to the battery terminal side of thyristor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP148029/1996 | 1996-05-17 | ||
| JP14802996 | 1996-05-17 | ||
| JP148029/96 | 1996-05-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1166712A CN1166712A (en) | 1997-12-03 |
| CN1060295C true CN1060295C (en) | 2001-01-03 |
Family
ID=15443530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97111567A Expired - Fee Related CN1060295C (en) | 1996-05-17 | 1997-05-16 | Automotive battery charging voltage control circuit |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1060295C (en) |
| FR (1) | FR2748870B1 (en) |
| ID (1) | ID16928A (en) |
| IT (1) | IT1291646B1 (en) |
| TW (1) | TW536056U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0936720B1 (en) * | 1998-02-12 | 2007-04-18 | Mitsuba Corporation Co., Ltd. | Lamp lighting and battery charging control system for a vehicle |
| AU2016200433B1 (en) * | 2016-01-27 | 2017-04-27 | Victory Industrial Corporation | Control module for an alternator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2039170A (en) * | 1979-01-05 | 1980-07-30 | Paris & Du Rhone | Overvoltage protection device |
| US5202811A (en) * | 1989-02-14 | 1993-04-13 | Minks Floyd M | Electrical power system with high voltage protection responsive to plural control voltages |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3975670A (en) * | 1973-05-02 | 1976-08-17 | Mcdermott Julian A | Overvoltage protector for battery operated devices |
| DE3701056C2 (en) * | 1987-01-13 | 1994-05-26 | Licentia Gmbh | Device for charging a battery located on a vehicle with a linear drive |
-
1997
- 1997-04-15 TW TW090210709U patent/TW536056U/en not_active IP Right Cessation
- 1997-04-24 IT IT97MI000953A patent/IT1291646B1/en active IP Right Grant
- 1997-04-30 FR FR9705340A patent/FR2748870B1/en not_active Expired - Fee Related
- 1997-05-16 CN CN97111567A patent/CN1060295C/en not_active Expired - Fee Related
- 1997-05-19 ID IDP971651A patent/ID16928A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2039170A (en) * | 1979-01-05 | 1980-07-30 | Paris & Du Rhone | Overvoltage protection device |
| US5202811A (en) * | 1989-02-14 | 1993-04-13 | Minks Floyd M | Electrical power system with high voltage protection responsive to plural control voltages |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1291646B1 (en) | 1999-01-19 |
| CN1166712A (en) | 1997-12-03 |
| FR2748870B1 (en) | 2000-02-18 |
| TW536056U (en) | 2003-06-01 |
| ID16928A (en) | 1997-11-20 |
| FR2748870A1 (en) | 1997-11-21 |
| ITMI970953A1 (en) | 1998-10-24 |
| ITMI970953A0 (en) | 1997-04-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010103 Termination date: 20120516 |