Rectifier bridge power supply circuits and with the LED fluorescent lamp of these power supply circuits
Technical field
The utility model relates to circuit design field, particularly a kind of power supply circuits and with the LED fluorescent lamp of these power supply circuits.
Background technology
At lighting field, traditional fluorescent lamp is former even present most widely used illuminating source, the process of a starter of luminous existence of traditional fluorescent lamp: the triggering that starter is subjected to the AC current signal is activated, generation one instantaneous high-voltage signal matches with ballast, the mercury vapour of this instantaneous high pressure signal activation traditional fluorescent lamp makes it ionization, thereby traditional fluorescent lamp is lighted.
In the area of power supply power shortage, perhaps in the power supply power shortage, because the deficiency of voltage makes starter not to be triggered, can't provide instantaneous high pressure through regular meeting, can not light traditional fluorescent lamp, thereby make troubles to daily life.
The LED fluorescent lamp is present comparatively popular a kind of illuminating source, and the LED fluorescent lamp is because the LED fluorescent lamp has the starter of need not or electric ballast, starts soon, and power is little, and no stroboscopic is not easy the advantage of the superpower energy-conservation and environmental protection of visual fatigue.The LED fluorescent lamp is one of product of national green energy conservation illuminating engineering focus development, is the major product that replaces traditional fluorescent lamp at present.
Because the supply power mode of LED fluorescent lamp, traditional fluorescent lamp is different, traditional fluorescent lamp generally adopts following two kinds of working methods:
The Inductive ballast mode is provided with starter in the lamp socket, when starting, starter is subjected to the triggering of AC signal and moves, and produces the instantaneous high pressure signal with ballast, makes the gas breakdown in the traditional fluorescent lamp, lights fluorescent lamp.
The mode of electronic ballast is provided with electric ballast in the lamp socket, when starting, the triggering of electric ballast AC signal and produce resonance produces high-frequency alternating current, makes the gas breakdown in the traditional fluorescent lamp, lights fluorescent lamp.
Therefore,, the LED fluorescent lamp is contained in the lamp socket of existing traditional fluorescent lamp, need the circuit on the lamp socket be changed, remove electric ballast or starter in the lamp socket if traditional fluorescent lamp is replaced by the LED fluorescent lamp.
General, the standard profile of LED fluorescent lamp, size, bore follow traditional fluorescent lamp the same, the user wishes directly the LED fluorescent lamp to be contained in the enterprising enforcement usefulness of lamp socket of traditional fluorescent lamp, rather than make traditional fluorescent lamp need being replaced to the better LED fluorescent lamp good, environmental protection and energy saving more of illumination effect, need transform or reinstall a lamp socket that aims at the power supply of LED fluorescent lamp to original lamp socket.Particularly LED fluorescent lamp and traditional fluorescent lamp all have the stage of generally using at present, and this user's request is more outstanding.
The utility model content
The utility model embodiment provides a kind of power supply circuits, and realization is installed to LED fluorescent lamp compatibility on the existing various lamp socket and uses.
The utility model embodiment provides a kind of LED fluorescent lamp, can be installed on the existing various lamp socket to use.
The power supply circuits that the utility model embodiment provides, comprise: rectifier diode (D1), (D2), (D3), (D4), (D5), (D6), described rectifier diode (D1), (D2) be in series and form the first series connection group, described rectifier diode (D3), (D4) be in series and form the second series connection group, described rectifier diode (D5), (D6) be in series and form the 3rd series connection group, the described first series connection group, the second series connection group, the electrical connection that is in parallel of the 3rd series connection group, point in parallel is node (105), (106), with described point in parallel (105), (106) as output point, be electrically connected with the constant-current source unit of luminous diode lamp fluorescent lamp, for described constant-current source unit provides direct current, locate to draw two lines as input (101) at the series connection point (107) of the described first series connection group, (102), locate to draw line as input (103) at the series connection point (103) of the described second series connection group, locate to draw line as input (104) at the series connection point (104) of described the 3rd series connection group, described input (101), (102) be electrically connected described input (103) with two wiring pin of lamp socket one end respectively, (104) be electrically connected with two wiring pin of the lamp socket other end respectively.
Alternatively, in described power supply circuits, described rectifier diode (D1), (D2), (D3), (D4), (D5) and/or (D6) be: Schottky rectifier diode and/or fast-recovery commutation diode.
The LED fluorescent lamp that the utility model embodiment provides, comprise power supply circuits, and LED fluorescent lamp, these power supply circuits, comprise: rectifier diode (D1), (D2), (D3), (D4), (D5), (D6), described rectifier diode (D1), (D2) be in series and form the first series connection group, described rectifier diode (D3), (D4) be in series and form the second series connection group, described rectifier diode (D5), (D6) be in series and form the 3rd series connection group, the described first series connection group, the second series connection group, the electrical connection that is in parallel of the 3rd series connection group, point in parallel is node (105), (106), with described point in parallel (105), (106) as output point, be electrically connected with the constant-current source unit of luminous diode lamp fluorescent lamp, for described constant-current source unit provides direct current, locate to draw two lines as input (101) at the series connection point (107) of the described first series connection group, (102), locate to draw line as input (103) at the series connection point (103) of the described second series connection group, locate to draw line as input (104) at the series connection point (104) of described the 3rd series connection group, described input (101), (102) be electrically connected described input (103) with two wiring pin of lamp socket one end respectively, (104) be electrically connected with two wiring pin of the lamp socket other end respectively.
Alternatively, in described LED fluorescent lamp, described rectifier diode (D1), (D2), (D3), (D4), (D5) and/or (D6) be: Schottky rectifier diode and/or fast-recovery commutation diode.
By on see, use the technical scheme of the utility model embodiment, use these power supply circuits, input 101,102 is electrically connected with two wiring pin of lamp socket one end respectively, 103,104 are electrically connected with two wiring pin of the lamp socket other end respectively.Insert power supply signal from the lamp socket two ends, when this lamp socket is when cooperating the lamp socket (being provided with starter or electric ballast in the lamp socket) of traditional fluorescent lamp use, no matter any two accesses of in four wiring pin of lamp socket, not being electrically connected respectively of the power supply of this lamp socket input, the signal of telecommunication that inserts is all through a full-bridge rectifier, convert alternating current to direct current, this direct current is inputed to the constant-current source unit of LED fluorescent lamp, to its power supply, to make the work of LED fluorescent lamp luminous to the LED power supply.Adopt this power supply circuits, electric current can be through starter in the lamp socket or the resonant capacitance in the electric ballast, and therefore electric ballast or starter wherein can not worked.As seen use the power supply circuits of present embodiment, can be implemented in and use the LED fluorescent lamp on traditional fluorescent lamp base.
In addition, when if this lamp socket is not traditional LED fluorescent lamp base, no matter the wiring pin input of this lamp socket is alternating current or direct current, and this input current all can convert the constant-current source unit that direct current inputs to the LED fluorescent lamp to, to its power supply, to make the work of LED fluorescent lamp luminous to the LED power supply.
To sum up, use the power supply circuits of present embodiment, can be implemented in and use the LED fluorescent lamp on the various lamp sockets.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
Fig. 1 is the realization schematic diagram of the power supply circuits of the utility model embodiment 1;
The circuit diagram of Fig. 2 for using power supply circuits shown in Figure 1 and luminous diode lamp fluorescent lamp to be electrically connected;
Fig. 3 is installed to the circuit electrical connection schematic diagram that uses on the lamp socket of band starter for the luminous diode lamp fluorescent lamp of band power supply circuits shown in Figure 2;
Fig. 4 is installed to the circuit electrical connection schematic diagram that uses on the lamp socket of charged sub-ballast for the luminous diode lamp fluorescent lamp of band power supply circuits shown in Figure 2.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
The realization schematic diagram of the power supply circuits of Fig. 1 present embodiment, show as Fig. 1, these power supply circuits comprise: rectifier diode D1, D2, D3, D4, D5, D6, described rectifier diode D1, D2 is in series and forms the first series connection group, described rectifier diode D3, D4 is in series and forms the second series connection group, described rectifier diode D5, D6 is in series and forms the 3rd series connection group, the described first series connection group, the second series connection group, the electrical connection that is in parallel of the 3rd series connection group, point in parallel is node 105, node 106, with described point 105 in parallel, 106 as output point, be electrically connected with the constant-current source unit of LED fluorescent lamp, for described constant-current source unit provides direct current, draw two lines that are electrically connected as input 102 at series connection point 107 places of the described first series connection group, 102, line is drawn as input 103 by series connection point 103 places in the described second series connection group, draw two lines that are electrically connected as input 104 at series connection point 104 places of described the 3rd series connection group, described input 101,102 are electrically connected described input 103 with two wiring pin of lamp socket one end respectively, 104 are electrically connected with two wiring pin of the lamp socket other end respectively.
With the luminous diode lamp fluorescent lamp equivalence is a load, and the circuit diagram that uses power supply circuits shown in Figure 1 and luminous diode lamp fluorescent lamp (load RL) to be electrically connected is seen Fig. 2.
As shown in Figure 2, obviously, during from any two non-electric-connecting end input dc powers of this input, all can in this circuit, form the loop through overload RL.As seen, use this power supply circuits, in the time of can externally being input as direct current, for described constant-current source unit provides direct current, to make the work of LED fluorescent lamp luminous to the LED power supply.
When being input as alternating current:
If when the signal of telecommunication inserted from input 101 (or 102), 103, when input 101 was positive pole, rectifier diode D1, load RL, rectifier diode D4 formed a loop; When input 103 was positive pole, rectifier diode D3, load RL, rectifier diode D2 formed a loop; Be the rectifier bridge that electric current process rectifier diode D1, D4, D3, D2 are constituted, convert interchange to direct current, RL provides direct current to load.
In like manner, when establishing the signal of telecommunication from input 101 (or 102), 104 accesses, when input 101 was positive pole, rectifier diode D1, load RL, rectifier diode D6 formed a loop; When input 104 was positive pole, rectifier diode D5, load RL, rectifier diode D2 formed a loop; Be the rectifier bridge that electric current process rectifier diode D1, D6, D5, D2 are constituted, convert interchange to direct current, RL provides direct current to load.
In like manner, when establishing the signal of telecommunication from input 103,104 accesses, when input 103 was positive pole, rectifier diode D3, load RL, rectifier diode D6 formed a loop; When input 104 was positive pole, rectifier diode D5, load RL, rectifier diode D4 formed a loop; Be the rectifier bridge that electric current process rectifier diode D3, D6, D5, D4 are constituted, convert interchange to direct current, RL provides direct current to load.
As seen, use the power supply circuits of present embodiment, the signal of telecommunication of no matter importing is alternating current or direct current, no matter input is any two that are not electrically connected in four inputs in the power supply circuits, can be to the constant current source power supply of LED fluorescent lamp, to make the work of LED fluorescent lamp luminous to the LED power supply.
LED fluorescent lamp with power supply circuits shown in Figure 1 shown in Figure 2 is installed to the circuit electrical connection graph that uses on the lamp socket of band starter, as shown in Figure 3:
The input 101,102,103,104 of power supply circuits respectively with lamp socket on the wiring pin at two ends be electrically connected, on lamp socket, starter is connected electrically in the two ends with input 102,103, ac signal inserts from input 101,104, when input 101 is positive pole, rectifier diode D1, load RL, rectifier diode D6 form a loop, and no current flows through starter, so the starter in the lamp socket is inoperative; When input 101 was negative pole, rectifier diode D5, load RL, rectifier diode D2 formed a loop, and no current flows through starter, so the starter in the lamp socket is inoperative; As seen, the rectifier bridge that this moment, electric current was constituted through rectifier diode D1, D6, D5, D2, convert AC signal to direct current signal, RL provides direct current to load, do not have electric current and flow through starter, starter can not work (can not glimmer, more can not produce instantaneous high pressure), and the starter in the visible lamp socket can not influence the operate as normal of LED fluorescent lamp.
LED fluorescent lamp with power supply circuits shown in Figure 1 shown in Figure 2 is installed to the circuit electrical connection graph that uses on the lamp socket of charged sub-ballast, as shown in Figure 4, supposes to be input as alternating current:
The input 101,102,103,104 of power supply circuits respectively with lamp socket on the wiring pin at two ends be electrically connected, on lamp socket, the built-in resonance capacitor C of electric ballast is connected electrically in the two ends of input 102,103, ac signal inserts from input 101,104, when input 101 is positive pole, rectifier diode D1, load RL, rectifier diode D6 form a loop, no current flows through the resonant capacitance C in the electric ballast, electric ballast can not produce the high pressure resonant electrical signals, and promptly electric ballast is inoperative; When input 101 was negative pole, rectifier diode D5, load RL, rectifier diode D2 formed a loop, and no current flows through the resonant capacitance C in the electric ballast, and electric ballast can not produce the high pressure resonant electrical signals, and promptly electric ballast is inoperative; As seen, the rectifier bridge that this moment, electric current was constituted through rectifier diode D1, D6, D5, D2, convert AC signal to direct current signal, RL provides direct current to load, do not have electric current and flow through resonant capacitance C, electric ballast can not produce the high pressure resonant electrical signals, and the electric ballast in the visible lamp socket can not influence the operate as normal of LED fluorescent lamp.
Therefore, use the power supply circuits of present embodiment, can realize any two two accesses not being electrically connected of the power supply input of this lamp socket no matter in light fixture two ends wiring pin, the signal of telecommunication that inserts is all through a full-bridge rectifier, convert alternating current to direct current, this direct current is inputed to the constant-current source unit of LED fluorescent lamp, to its power supply, so that the work of LED fluorescent lamp is luminous.Adopt this power supply circuits, electric current can be through starter in the lamp socket or the resonant capacitance in the electric ballast, and therefore electric ballast or starter wherein can not worked.As seen use the power supply circuits of present embodiment, can be implemented in and use the LED fluorescent lamp on traditional fluorescent lamp base.
More than rectifier bridge power supply circuits that the utility model embodiment is provided and be described in detail with the LED fluorescent lamp of these power supply circuits, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.