CN202334337U - Power adapter circuit - Google Patents
Power adapter circuit Download PDFInfo
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- CN202334337U CN202334337U CN2011204570627U CN201120457062U CN202334337U CN 202334337 U CN202334337 U CN 202334337U CN 2011204570627 U CN2011204570627 U CN 2011204570627U CN 201120457062 U CN201120457062 U CN 201120457062U CN 202334337 U CN202334337 U CN 202334337U
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Abstract
The utility model relates to the technical field of switch power supply protection circuits, in particular to a power adapter circuit. The power adapter circuit comprises an alternating current input end L, an alternating current input end N, a lightning surge circuit unit, a primary rectifier filter circuit unit, an inverter circuit unit, a secondary rectifier filtering circuit unit, a direct current output end V+ and a direct current output end V-. Compared with the prior art, the power adapter circuit disclosed by the utility model has the advantages of high lightning surge voltage, low standby power consumption, long service life, low cost and high control precision.
Description
Technical field
The utility model relates to field of power supplies, particularly relates to a kind of power supply adaptor circuit.
Background technology
Along with electronic product use increasingly extensive, the electronic product of low standby power loss is favored gradually, usually; Electronic product is when using intermittently; In order to reach purpose of power saving, its power circuit is in holding state, at this moment; The microprocessor of this power circuit transmits control signal, thereby makes this power circuit stop the power unit power supply to this electronic product.This power circuit only provides a voltage to make this microprocessor in running order; When this power circuit will get into normal operating condition by holding state; This microprocessor transmits control signal, and makes this power circuit to this power unit power supply, thereby makes this electronic product operate as normal.
" standby energy consumption " is meant the electric equipment with idle function obsolete the time, the power consumption that does not have deenergization to take place.For fear of the trouble of frequent plug appliance plug, or in order to preserve the setting to the electrical equipment user mode, many users adopt not deenergization very habitually and only with the closed easily electrical equipment of remote controller, make electrical equipment be in holding state for a long time.Idle function has also caused a large amount of energy wastes when facilitating for the resident.Stand-by power consumption can be divided into two types of conduction losses and switching loss.
The stand-by power consumption of power supply adaptor circuit in the past is generally all very big, and under holding state, the components and parts of power supply inside are still in running order, reduced the life expectancy of power supply like this.For example, electrochemical capacitor, the evaporation rate of electrolyte has reduced actual life far above non operating state when in running order.
In addition, the anti-lightning surge voltage of power supply adaptor circuit in the past is general only about 2KV, and cost is high, and control precision is low.
Summary of the invention
The purpose of the utility model is to avoid weak point of the prior art and a kind of power supply adaptor circuit is provided, and the anti-lightning surge voltage of this power supply adaptor circuit is high, and stand-by power consumption is little, long service life, and cost is low, and control precision is high.
The purpose of the utility model realizes through following technical measures.
A kind of power supply adaptor circuit comprises ac input end L, ac input end N, lightning protection surge circuit unit, elementary current rectifying and wave filtering circuit unit, inverter circuit unit, secondary commutation filter circuit unit, dc output end V+ and dc output end V-;
Said lightning protection surge circuit unit is provided with protective tube F1, protective tube F2, piezo-resistance VZ1, resistance J2, capacitor C 1 and thermistor R100;
Said elementary current rectifying and wave filtering circuit unit is provided with rectifier bridge BR1, capacitor C 2 and capacitor C 3;
Said inverter circuit unit is provided with resistance R 1; Resistance R 2; Resistance R 3; Resistance R 4; Resistance R 5; Resistance R 6; Resistance R 6A; Resistance R 7; Resistance R 8; Resistance R 9; Resistance R 10; Resistance R 11; Resistance R 12; Resistance R 13; Resistance R 14; Resistance R 17; Resistance R 19; Resistance R 20; Resistance R 21; Resistance R 22; Resistance R 23; Resistance R 24; Resistance R 25; Resistance R 27; Electronics R28; Resistance R 29; Resistance R 30; Resistance R 31; Resistance R 32; Resistance R 33; Resistance R 34; Resistance R 200; Transformer T1; Capacitor C 4; Capacitor C 5; Capacitor C 6; Capacitor C 7; Capacitor C 8; Capacitor C 9; Capacitor C 15; Capacitor C 16; Capacitor C 17; Capacitor C 18; Capacitor C 19; Capacitor C 20; Capacitor C 21; Capacitor C Y1; Chip U1; Optocoupler U2; Three ends are adjustable shunting a reference source U3; FET Q1; Triode Q2; Diode D1; Diode D2; Diode D5; Diode D6; Diode D7; Diode ZD1; Diode ZD3; Inductance L F1; Magnetic bead FB1;
Said secondary commutation filter circuit unit comprises resistance R 15, resistance R 26, capacitor C 10, capacitor C 11, capacitor C 12, capacitor C 13, capacitor C 14, diode D8, magnetic bead FB2, inductance L 3;
Said ac input end L is connected with protective tube F1 one end; The protective tube F1 other end is connected with protective tube F2 one end, resistance J2 one end; The resistance J2 other end is connected with resistance VZ1 one end with protective tube F2 one end; The protective tube F2 other end is connected with the 1st pin of capacitor C 1 one ends, resistance R 1 one ends and inductance L F1, and capacitor C 1 other end is connected with resistance R 100 1 ends, resistance R 2 one ends, inductance L F1 the 2nd pin, and resistance R 100 other ends are connected with the resistance VZ1 other end, ac input end N;
Said resistance R 2 other ends are connected with resistance R 23 1 ends, resistance R 3 one ends; Resistance R 23 other ends are connected with resistance R 1 other end; Resistance R 3 other ends are connected with resistance R 4 one ends; Resistance R 4 other ends are connected with diode ZD1 negative pole, capacitor C 18 1 ends, diode D1 negative pole, capacitor C 20 1 ends, chip U1 the 5th pin and resistance R 31 1 ends; Diode D1 is anodal to be connected with capacitor C 7 one ends, capacitor C 8 one ends, diode D6 negative pole and resistance R 24 1 ends, and resistance R 24 other ends are connected with capacitor C 17 1 ends, and capacitor C 17 other ends are anodal with diode D6, resistance R 13 1 ends are connected; Resistance R 13 other ends are connected with transformer T1 the 5th pin, and capacitor C 18 other ends, capacitor C 7 other ends, capacitor C 8 other ends and transformer T1 the 4th pin are connected with input power supply ground;
Diode ZD1 is anodal to be connected with base stage, capacitor C 19 1 ends, resistance R 25 1 ends of triode Q2; The collector electrode of triode Q2 is connected with the 3rd pin of resistance R 30 1 ends, chip U1; Resistance R 30 other ends are connected with resistance R 200 1 ends; The 1st pin of capacitor C 19 other ends, resistance R 25 other ends, triode Q2 emitter, resistance R 200 other ends, chip U1 is connected with input power supply ground, and the 2nd pin of chip U1 is connected with resistance R 33 1 ends, resistance R 28 1 ends and capacitor C 9 one ends, and resistance R 28 other ends are connected with diode ZD3 negative pole; Capacitor C 9 other ends, diode ZD3 positive pole are connected with input power supply ground, and resistance R 33 other ends are connected with the C end of optocoupler U2;
The 6th pin of chip U1 is connected with diode D7 negative pole, resistance R 12 1 ends; Diode D7 is anodal to be connected with the grid of resistance R 10 1 ends, resistance R 12 other ends, FET Q1; Resistance R 10 other ends are connected with input power supply ground, and the drain electrode of FET Q1 is connected with diode D5 is anodal;
The 4th pin of chip U1 is connected with capacitor C 6 one ends, resistance R 11 1 ends; Resistance R 11 other ends are connected with resistance R 7 one ends, resistance R 8 one ends, resistance R 9 one ends, magnetic bead FB1 one end; The inductance FB1 other end is connected with the source electrode of FET Q1, and capacitor C 6 other ends, resistance R 7 other ends, resistance R 8 other ends, resistance R 9 other ends are connected with input power supply ground;
The 3rd pin of transformer T1 is connected with capacitor C 15 1 ends, and the other end of capacitor C 15 is connected with input power supply ground;
The E end of optocoupler U2 is connected with input power supply ground; The A end of optocoupler U2 is connected with resistance R 17 1 ends; Resistance R 17 other ends are connected with resistance R 27 1 ends; Negative electrode, capacitor C 16 1 ends, capacitor C 21 1 ends of the K end of resistance R 27 other ends and optocoupler U2, three ends are adjustable shunting a reference source U3 are connected; Capacitor C 16 other ends are connected with resistance R 22 1 ends, and the reference utmost point, resistance R 21 1 ends, resistance R 20 1 ends, resistance R 19 1 ends of resistance R 22 other ends and capacitor C 21 other ends, three ends are adjustable shunting a reference source U3 are connected, and anode, resistance R 21 other ends, resistance R 20 other ends of three ends are adjustable shunting a reference source U3 are connected with out-put supply ground;
Resistance R 31 other ends are connected with resistance R 32 1 ends; Resistance R 32 other ends are connected with resistance R 29 1 ends; Resistance R 29 other ends are connected with the 1st pin, resistance R 6A one end, resistance R 6 one ends and capacitor C 4 one ends of transformer T1; The resistance R 6A other end is connected with resistance R 6 other ends, resistance R 34 1 ends, resistance R 5 one ends, and resistance R 34 other ends are connected with resistance R 5 other ends, capacitor C 4 other ends, resistance R 14 1 ends, and resistance R 14 other ends are connected with capacitor C 5 one ends, diode D5 negative pole; Capacitor C 5 other ends are connected with the 3rd pin of transformer T1, and capacitor C 15 other ends are connected with input power supply ground;
The 3rd pin of said inductance L F1 is connected with the 1st pin of rectifier bridge BR1; The 4th pin of inductance L F1 is connected with the 3rd pin of rectifier bridge BR1; The 2nd pin of rectifier bridge BR1 is connected with capacitor C 2 one ends, capacitor C 3 one ends, resistance R 29 other ends, and the 4th pin of rectifier bridge BR1, capacitor C 2 other ends, capacitor C 3 other ends are connected with input power supply ground;
The A pin of said transformer T1 is connected with capacitor C 10 1 ends, magnetic bead FB2 one end; Capacitor C 10 other ends are connected with resistance R 26 1 ends; Resistance R 26 other ends are connected with resistance R 15 1 ends; The magnetic bead FB2 other end is connected with diode D8 is anodal; Diode D8 negative pole is connected with the 1st pin of resistance R 15 other ends, capacitor C 11 1 ends, capacitor C 12 1 ends, resistance R 17 other ends, capacitor C 13 1 ends, resistance R 19 other ends, inductance L 3; The 2nd pin of the B end of transformer T1, capacitor C 11 other ends, capacitor C 12 other ends, capacitor C 13 other ends, inductance L 3 is connected with out-put supply ground, and the 3rd pin of inductance L 3 is connected with capacitor C 14 1 ends, dc output end V+, and the 4th pin of inductance L 3 is connected with capacitor C 14 other ends, dc output end V-;
Input power supply ground is connected with capacitor C Y1 one end, and the capacitor C Y1 other end is connected with out-put supply ground.
Preferably, said protective tube F1 is set to 3.15 amperes/250 volts, and capacitor C 1 is set to 103 pico farads/500 volt, and thermistor R100 is set to 3 ohm/5 amperes, and said capacitor C 2 is set to 103 pico farads/500 volt.
Another is preferred, and said resistance R 1 is set to 680 kilohms, and resistance R 2 is set to 430 kilohms; Resistance R 3 is set to 100 kilohms, and resistance R 4 is set to 100 kilohms, and resistance R 5 is set to 75 kilohms; Resistance R 6 is set to 75 kilohms, and resistance R is set to 75 kilohms for 6 amperes, and resistance R 7 is set to 2.7 ohm; Resistance R 8 is set to 2.7 ohm, and resistance R 9 is set to 2.7 ohm, and resistance R 10 is set to 10 kilohms; Resistance R 11 is set to 470 ohm, and resistance R 12 is set to 100 ohm, and resistance R 13 is set to 10 ohm.
Another is preferred, and resistance R 17 is set to 620 ohm, and resistance R 19 is set to 20 kilohms; Resistance R 20 is set to 5.1 kilohms, and resistance R 22 is set to 11 kilohms, and resistance R 23 is set to 680 kilohms; Resistance R 24 is set to 56 ohm, and resistance R 30 is set to 82 kilohms, and resistance R 33 is set to 27 ohm; Resistance R 34 is set to 75 kilohms, and resistance R 200 is set to 20 kilohms.
Another is preferred, and capacitor C 4 is set to 472 pico farads/1 kilovolt, and capacitor C 6 is set to 100 microfarads/50 volt; Capacitor C 7 is set to 22 microfarads/50 volt, and capacitor C 9 is set to 1 nanofarad/50 volt, and capacitor C 16 is set to 100 nanofarads/50 volt; Capacitor C 17 is set to 1 nanofarad/100 volt; Capacitor C 18 is set to 10 microfarads/50 volt, and capacitor C 20 is set to 1 microfarad/50 volt, and capacitor C Y1 is set to 2.2 microfarads/400 volt.
Another is preferred, and said resistance R 15 is set to 27 ohm, and resistance R 26 is set to 27 ohm, and capacitor C 10 is set to 1 nanofarad/100 volt, and capacitor C 12 is set to 1000 microfarads/25 volt, and capacitor C 13 is set to 470 microfarads/25 volt.
Another is preferred, and the model of said chip U1 is OB2273, and the model of piezo-resistance VZ1 is 14N751; The model of rectifier bridge BR1 is KBP206; Optocoupler U2 is set to EL817, and three ends are adjustable, and shunting a reference source U3 is set to AZ431, and the model of FET Q1 is 4N60.
Another is preferred, and the model of diode D1 is IN4148, and the model of diode D5 is IN4007; The model of diode D6 is FR107; The model that diode D7 is set to is IN4007, and the model of inductance L F1 is set to UU9.8, and the model of diode D8 is MBR10100.
Another is preferred, and said capacitor C 3, capacitor C 7, capacitor C 12, capacitor C 13 and capacitor C 18 all are set to polar capacitor, and thermistor R100 and R200 all are set to negative tempperature coefficient thermistor.
Another is preferred, and said diode ZD1 and diode ZD3 all are set to voltage stabilizing didoe.
The beneficial effect of the utility model: a kind of power supply adaptor circuit of the utility model comprises ac input end L, ac input end N, lightning protection surge circuit unit, elementary current rectifying and wave filtering circuit unit, inverter circuit unit, secondary commutation filter circuit unit, dc output end V+ and dc output end V-; Lightning protection surge circuit unit is provided with protective tube F1, protective tube F2, piezo-resistance VZ1, resistance J2, capacitor C 1 and thermistor R100; Elementary current rectifying and wave filtering circuit unit is provided with rectifier bridge BR1, capacitor C 2 and capacitor C 3; The inverter circuit unit is provided with resistance R 1; Resistance R 2; Resistance R 3; Resistance R 4; Resistance R 5; Resistance R 6; Resistance R 6A; Resistance R 7; Resistance R 8; Resistance R 9; Resistance R 10; Resistance R 11; Resistance R 12; Resistance R 13; Resistance R 14; Resistance R 17; Resistance R 19; Resistance R 20; Resistance R 21; Resistance R 22; Resistance R 23; Resistance R 24; Resistance R 25; Resistance R 27; Electronics R28; Resistance R 29; Resistance R 30; Resistance R 31; Resistance R 32; Resistance R 33; Resistance R 34; Resistance R 200; Transformer T1; Capacitor C 4; Capacitor C 5; Capacitor C 6; Capacitor C 7; Capacitor C 8; Capacitor C 9; Capacitor C 15; Capacitor C 16; Capacitor C 17; Capacitor C 18; Capacitor C 19; Capacitor C 20; Capacitor C 21; Capacitor C Y1; Chip U1; Optocoupler U2; Three ends are adjustable shunting a reference source U3; FET Q1; Triode Q2; Diode D1; Diode D2; Diode D5; Diode D6; Diode D7; Diode ZD1; Diode ZD3; Inductance L F1; Magnetic bead FB1; Secondary commutation filter circuit unit comprises resistance R 15, resistance R 26, capacitor C 10, capacitor C 11, capacitor C 12, capacitor C 13, capacitor C 14, diode D8, magnetic bead FB2, inductance L 3; Compared with prior art; The anti-lightning surge voltage of the power supply adaptor circuit of the utility model is high, and stand-by power consumption is little, long service life; Cost is low, and control precision is high.
Description of drawings
Utilize accompanying drawing that the utility model is further specified, but the content in the accompanying drawing does not constitute any restriction to the utility model.
Fig. 1 is the circuit diagram of a kind of power supply adaptor circuit of the utility model.
The Reference numeral that comprises among Fig. 1 has:
Lightning protection surge circuit unit 1;
Elementary current rectifying and wave filtering circuit unit 2;
Secondary commutation filter circuit unit 4.
Embodiment
In conjunction with following examples the utility model is described further.
A kind of power supply adaptor circuit; As shown in Figure 1, comprise ac input end L, ac input end N, lightning protection surge circuit unit 1, elementary current rectifying and wave filtering circuit unit 2, inverter circuit unit 3, secondary commutation filter circuit unit 4, dc output end V+ and dc output end V-;
Lightning protection surge circuit unit 1 is provided with protective tube F1, protective tube F2, piezo-resistance VZ1, resistance J2, capacitor C 1 and thermistor R100;
Elementary current rectifying and wave filtering circuit unit 2 is provided with rectifier bridge BR1, capacitor C 2 and capacitor C 3;
Secondary commutation filter circuit unit 4 comprises resistance R 15, resistance R 26, capacitor C 10, capacitor C 11, capacitor C 12, capacitor C 13, capacitor C 14, diode D8, magnetic bead FB2, inductance L 3;
Ac input end L is connected with protective tube F1 one end; The protective tube F1 other end is connected with protective tube F2 one end, resistance J2 one end; The resistance J2 other end is connected with resistance VZ1 one end with protective tube F2 one end; The protective tube F2 other end is connected with the 1st pin of capacitor C 1 one ends, resistance R 1 one ends and inductance L F1, and capacitor C 1 other end is connected with resistance R 100 1 ends, resistance R 2 one ends, inductance L F1 the 2nd pin, and resistance R 100 other ends are connected with the resistance VZ1 other end, ac input end N;
Resistance R 2 other ends are connected with resistance R 23 1 ends, resistance R 3 one ends; Resistance R 23 other ends are connected with resistance R 1 other end; Resistance R 3 other ends are connected with resistance R 4 one ends; Resistance R 4 other ends are connected with diode ZD1 negative pole, capacitor C 18 1 ends, diode D1 negative pole, capacitor C 20 1 ends, chip U1 the 5th pin and resistance R 31 1 ends; Diode D1 is anodal to be connected with capacitor C 7 one ends, capacitor C 8 one ends, diode D6 negative pole and resistance R 24 1 ends, and resistance R 24 other ends are connected with capacitor C 17 1 ends, and capacitor C 17 other ends are anodal with diode D6, resistance R 13 1 ends are connected; Resistance R 13 other ends are connected with transformer T1 the 5th pin, and capacitor C 18 other ends, capacitor C 7 other ends, capacitor C 8 other ends and transformer T1 the 4th pin are connected with input power supply ground;
Diode ZD1 is anodal to be connected with base stage, capacitor C 19 1 ends, resistance R 25 1 ends of triode Q2; The collector electrode of triode Q2 is connected with the 3rd pin of resistance R 30 1 ends, chip U1; Resistance R 30 other ends are connected with resistance R 200 1 ends; The 1st pin of capacitor C 19 other ends, resistance R 25 other ends, triode Q2 emitter, resistance R 200 other ends, chip U1 is connected with input power supply ground, and the 2nd pin of chip U1 is connected with resistance R 33 1 ends, resistance R 28 1 ends and capacitor C 9 one ends, and resistance R 28 other ends are connected with diode ZD3 negative pole; Capacitor C 9 other ends, diode ZD3 positive pole are connected with input power supply ground, and resistance R 33 other ends are connected with the C end of optocoupler U2;
The 6th pin of chip U1 is connected with diode D7 negative pole, resistance R 12 1 ends; Diode D7 is anodal to be connected with the grid of resistance R 10 1 ends, resistance R 12 other ends, FET Q1; Resistance R 10 other ends are connected with input power supply ground, and the drain electrode of FET Q1 is connected with diode D5 is anodal;
The 4th pin of chip U1 is connected with capacitor C 6 one ends, resistance R 11 1 ends; Resistance R 11 other ends are connected with resistance R 7 one ends, resistance R 8 one ends, resistance R 9 one ends, magnetic bead FB1 one end; The inductance FB1 other end is connected with the source electrode of FET Q1, and capacitor C 6 other ends, resistance R 7 other ends, resistance R 8 other ends, resistance R 9 other ends are connected with input power supply ground;
The 3rd pin of transformer T1 is connected with capacitor C 15 1 ends, and the other end of capacitor C 15 is connected with input power supply ground;
The E end of optocoupler U2 is connected with input power supply ground; The A end of optocoupler U2 is connected with resistance R 17 1 ends; Resistance R 17 other ends are connected with resistance R 27 1 ends; Negative electrode, capacitor C 16 1 ends, capacitor C 21 1 ends of the K end of resistance R 27 other ends and optocoupler U2, three ends are adjustable shunting a reference source U3 are connected; Capacitor C 16 other ends are connected with resistance R 22 1 ends, and the reference utmost point, resistance R 21 1 ends, resistance R 20 1 ends, resistance R 19 1 ends of resistance R 22 other ends and capacitor C 21 other ends, three ends are adjustable shunting a reference source U3 are connected, and anode, resistance R 21 other ends, resistance R 20 other ends of three ends are adjustable shunting a reference source U3 are connected with out-put supply ground;
Resistance R 31 other ends are connected with resistance R 32 1 ends; Resistance R 32 other ends are connected with resistance R 29 1 ends; Resistance R 29 other ends are connected with the 1st pin, resistance R 6A one end, resistance R 6 one ends and capacitor C 4 one ends of transformer T1; The resistance R 6A other end is connected with resistance R 6 other ends, resistance R 34 1 ends, resistance R 5 one ends, and resistance R 34 other ends are connected with resistance R 5 other ends, capacitor C 4 other ends, resistance R 14 1 ends, and resistance R 14 other ends are connected with capacitor C 5 one ends, diode D5 negative pole; Capacitor C 5 other ends are connected with the 3rd pin of transformer T1, and capacitor C 15 other ends are connected with input power supply ground;
The 3rd pin of inductance L F1 is connected with the 1st pin of rectifier bridge BR1; The 4th pin of inductance L F1 is connected with the 3rd pin of rectifier bridge BR1; The 2nd pin of rectifier bridge BR1 is connected with capacitor C 2 one ends, capacitor C 3 one ends, resistance R 29 other ends, and the 4th pin of rectifier bridge BR1, capacitor C 2 other ends, capacitor C 3 other ends are connected with input power supply ground;
The A pin of transformer T1 is connected with capacitor C 10 1 ends, magnetic bead FB2 one end; Capacitor C 10 other ends are connected with resistance R 26 1 ends; Resistance R 26 other ends are connected with resistance R 15 1 ends; The magnetic bead FB2 other end is connected with diode D8 is anodal; Diode D8 negative pole is connected with the 1st pin of resistance R 15 other ends, capacitor C 11 1 ends, capacitor C 12 1 ends, resistance R 17 other ends, capacitor C 13 1 ends, resistance R 19 other ends, inductance L 3; The 2nd pin of the B end of transformer T1, capacitor C 11 other ends, capacitor C 12 other ends, capacitor C 13 other ends, inductance L 3 is connected with out-put supply ground, and the 3rd pin of inductance L 3 is connected with capacitor C 14 1 ends, dc output end V+, and the 4th pin of inductance L 3 is connected with capacitor C 14 other ends, dc output end V-;
Input power supply ground is connected with capacitor C Y1 one end, and the capacitor C Y1 other end is connected with out-put supply ground.
Protective tube F1 is set to 3.15 amperes/250 volts, and capacitor C 1 is set to 103 pico farads/500 volt, and thermistor R100 is set to 3 ohm/5 amperes, and said capacitor C 2 is set to 103 pico farads/500 volt.
Compared with prior art, the anti-lightning surge voltage of the power supply adaptor circuit of present embodiment is high, and stand-by power consumption is little, long service life, and cost is low, and control precision is high.
A kind of power supply adaptor circuit, other structures are identical with embodiment 1, and difference is: resistance R 17 is set to 620 ohm; Resistance R 19 is set to 20 kilohms, and resistance R 20 is set to 5.1 kilohms, and resistance R 22 is set to 11 kilohms; Resistance R 23 is set to 680 kilohms, and resistance R 24 is set to 56 ohm, and resistance R 30 is set to 82 kilohms; Resistance R 33 is set to 27 ohm, and resistance R 34 is set to 75 kilohms, and resistance R 200 is set to 20 kilohms.
Resistance R 15 is set to 27 ohm, and resistance R 26 is set to 27 ohm, and capacitor C 10 is set to 1 nanofarad/100 volt, and capacitor C 12 is set to 1000 microfarads/25 volt, and capacitor C 13 is set to 470 microfarads/25 volt.
The model of chip U1 is OB2273, and the model of piezo-resistance VZ1 is 14N751, and the model of rectifier bridge BR1 is KBP206, and optocoupler U2 is set to EL817, and three ends are adjustable, and shunting a reference source U3 is set to AZ431, and the model of FET Q1 is 4N60.
The model of diode D1 is IN4148, and the model of diode D5 is IN4007, and the model of diode D6 is FR107, and the model that diode D7 is set to is IN4007, and the model of inductance L F1 is set to UU9.8, and the model of diode D8 is MBR10100.
Diode ZD1 and diode ZD3 all are set to voltage stabilizing didoe.
The model of inductance L 3 is T9*5*3.T is meant the type of inductance, and 9 represent the external diameter of inductance, and 5 represent the height of inductance, and 3 represent the endoporus of inductance.
The voltage range of the alternating current between ac input end L and the ac input end N is set to the 100-240 volt, and the frequency configuration of the alternating current between ac input end L and the ac input end N is 50/60 hertz.
Power output between dc output end V+ and the dc output end V-is set to 18 watts.It specifically is 12 volts/1.5 amperes.
Should be noted that at last; Above embodiment only be used to explain the utility model technical scheme but not to the restriction of the utility model protection range; Although the utility model has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and do not break away from the essence and the scope of the utility model technical scheme.
Claims (10)
1. a power supply adaptor circuit is characterized in that: comprise ac input end L, ac input end N, lightning protection surge circuit unit, elementary current rectifying and wave filtering circuit unit, inverter circuit unit, secondary commutation filter circuit unit, dc output end V+ and dc output end V-;
Said lightning protection surge circuit unit is provided with protective tube F1, protective tube F2, piezo-resistance VZ1, resistance J2, capacitor C 1 and thermistor R100;
Said elementary current rectifying and wave filtering circuit unit is provided with rectifier bridge BR1, capacitor C 2 and capacitor C 3;
Said inverter circuit unit is provided with resistance R 1; Resistance R 2; Resistance R 3; Resistance R 4; Resistance R 5; Resistance R 6; Resistance R 6A; Resistance R 7; Resistance R 8; Resistance R 9; Resistance R 10; Resistance R 11; Resistance R 12; Resistance R 13; Resistance R 14; Resistance R 17; Resistance R 19; Resistance R 20; Resistance R 21; Resistance R 22; Resistance R 23; Resistance R 24; Resistance R 25; Resistance R 27; Electronics R28; Resistance R 29; Resistance R 30; Resistance R 31; Resistance R 32; Resistance R 33; Resistance R 34; Resistance R 200; Transformer T1; Capacitor C 4; Capacitor C 5; Capacitor C 6; Capacitor C 7; Capacitor C 8; Capacitor C 9; Capacitor C 15; Capacitor C 16; Capacitor C 17; Capacitor C 18; Capacitor C 19; Capacitor C 20; Capacitor C 21; Capacitor C Y1; Chip U1; Optocoupler U2; Three ends are adjustable shunting a reference source U3; FET Q1; Triode Q2; Diode D1; Diode D2; Diode D5; Diode D6; Diode D7; Diode ZD1; Diode ZD3; Inductance L F1; Magnetic bead FB1;
Said secondary commutation filter circuit unit comprises resistance R 15, resistance R 26, capacitor C 10, capacitor C 11, capacitor C 12, capacitor C 13, capacitor C 14, diode D8, magnetic bead FB2, inductance L 3;
Said ac input end L is connected with protective tube F1 one end; The protective tube F1 other end is connected with protective tube F2 one end, resistance J2 one end; The resistance J2 other end is connected with resistance VZ1 one end with protective tube F2 one end; The protective tube F2 other end is connected with the 1st pin of capacitor C 1 one ends, resistance R 1 one ends and inductance L F1, and capacitor C 1 other end is connected with resistance R 100 1 ends, resistance R 2 one ends, inductance L F1 the 2nd pin, and resistance R 100 other ends are connected with the resistance VZ1 other end, ac input end N;
Said resistance R 2 other ends are connected with resistance R 23 1 ends, resistance R 3 one ends; Resistance R 23 other ends are connected with resistance R 1 other end; Resistance R 3 other ends are connected with resistance R 4 one ends; Resistance R 4 other ends are connected with diode ZD1 negative pole, capacitor C 18 1 ends, diode D1 negative pole, capacitor C 20 1 ends, chip U1 the 5th pin and resistance R 31 1 ends; Diode D1 is anodal to be connected with capacitor C 7 one ends, capacitor C 8 one ends, diode D6 negative pole and resistance R 24 1 ends, and resistance R 24 other ends are connected with capacitor C 17 1 ends, and capacitor C 17 other ends are anodal with diode D6, resistance R 13 1 ends are connected; Resistance R 13 other ends are connected with transformer T1 the 5th pin, and capacitor C 18 other ends, capacitor C 7 other ends, capacitor C 8 other ends and transformer T1 the 4th pin are connected with input power supply ground;
Diode ZD1 is anodal to be connected with base stage, capacitor C 19 1 ends, resistance R 25 1 ends of triode Q2; The collector electrode of triode Q2 is connected with the 3rd pin of resistance R 30 1 ends, chip U1; Resistance R 30 other ends are connected with resistance R 200 1 ends; The 1st pin of capacitor C 19 other ends, resistance R 25 other ends, triode Q2 emitter, resistance R 200 other ends, chip U1 is connected with input power supply ground, and the 2nd pin of chip U1 is connected with resistance R 33 1 ends, resistance R 28 1 ends and capacitor C 9 one ends, and resistance R 28 other ends are connected with diode ZD3 negative pole; Capacitor C 9 other ends, diode ZD3 positive pole are connected with input power supply ground, and resistance R 33 other ends are connected with the C end of optocoupler U2;
The 6th pin of chip U1 is connected with diode D7 negative pole, resistance R 12 1 ends; Diode D7 is anodal to be connected with the grid of resistance R 10 1 ends, resistance R 12 other ends, FET Q1; Resistance R 10 other ends are connected with input power supply ground, and the drain electrode of FET Q1 is connected with diode D5 is anodal;
The 4th pin of chip U1 is connected with capacitor C 6 one ends, resistance R 11 1 ends; Resistance R 11 other ends are connected with resistance R 7 one ends, resistance R 8 one ends, resistance R 9 one ends, magnetic bead FB1 one end; The inductance FB1 other end is connected with the source electrode of FET Q1, and capacitor C 6 other ends, resistance R 7 other ends, resistance R 8 other ends, resistance R 9 other ends are connected with input power supply ground;
The 3rd pin of transformer T1 is connected with capacitor C 15 1 ends, and the other end of capacitor C 15 is connected with input power supply ground;
The E end of optocoupler U2 is connected with input power supply ground; The A end of optocoupler U2 is connected with resistance R 17 1 ends; Resistance R 17 other ends are connected with resistance R 27 1 ends; Negative electrode, capacitor C 16 1 ends, capacitor C 21 1 ends of the K end of resistance R 27 other ends and optocoupler U2, three ends are adjustable shunting a reference source U3 are connected; Capacitor C 16 other ends are connected with resistance R 22 1 ends, and the reference utmost point, resistance R 21 1 ends, resistance R 20 1 ends, resistance R 19 1 ends of resistance R 22 other ends and capacitor C 21 other ends, three ends are adjustable shunting a reference source U3 are connected, and anode, resistance R 21 other ends, resistance R 20 other ends of three ends are adjustable shunting a reference source U3 are connected with out-put supply ground;
Resistance R 31 other ends are connected with resistance R 32 1 ends; Resistance R 32 other ends are connected with resistance R 29 1 ends; Resistance R 29 other ends are connected with the 1st pin, resistance R 6A one end, resistance R 6 one ends and capacitor C 4 one ends of transformer T1; The resistance R 6A other end is connected with resistance R 6 other ends, resistance R 34 1 ends, resistance R 5 one ends, and resistance R 34 other ends are connected with resistance R 5 other ends, capacitor C 4 other ends, resistance R 14 1 ends, and resistance R 14 other ends are connected with capacitor C 5 one ends, diode D5 negative pole; Capacitor C 5 other ends are connected with the 3rd pin of transformer T1, and capacitor C 15 other ends are connected with input power supply ground;
The 3rd pin of said inductance L F1 is connected with the 1st pin of rectifier bridge BR1; The 4th pin of inductance L F1 is connected with the 3rd pin of rectifier bridge BR1; The 2nd pin of rectifier bridge BR1 is connected with capacitor C 2 one ends, capacitor C 3 one ends, resistance R 29 other ends, and the 4th pin of rectifier bridge BR1, capacitor C 2 other ends, capacitor C 3 other ends are connected with input power supply ground;
The A pin of said transformer T1 is connected with capacitor C 10 1 ends, magnetic bead FB2 one end; Capacitor C 10 other ends are connected with resistance R 26 1 ends; Resistance R 26 other ends are connected with resistance R 15 1 ends; The magnetic bead FB2 other end is connected with diode D8 is anodal; Diode D8 negative pole is connected with the 1st pin of resistance R 15 other ends, capacitor C 11 1 ends, capacitor C 12 1 ends, resistance R 17 other ends, capacitor C 13 1 ends, resistance R 19 other ends, inductance L 3; The 2nd pin of the B end of transformer T1, capacitor C 11 other ends, capacitor C 12 other ends, capacitor C 13 other ends, inductance L 3 is connected with out-put supply ground, and the 3rd pin of inductance L 3 is connected with capacitor C 14 1 ends, dc output end V+, and the 4th pin of inductance L 3 is connected with capacitor C 14 other ends, dc output end V-;
Input power supply ground is connected with capacitor C Y1 one end, and the capacitor C Y1 other end is connected with out-put supply ground.
2. a kind of power supply adaptor circuit according to claim 1; It is characterized in that: said protective tube F1 is set to 3.15 amperes/250 volts; Capacitor C 1 is set to 103 pico farads/500 volt, and thermistor R100 is set to 3 ohm/5 amperes, and said capacitor C 2 is set to 103 pico farads/500 volt.
3. a kind of power supply adaptor circuit according to claim 1 is characterized in that: said resistance R 1 is set to 680 kilohms, and resistance R 2 is set to 430 kilohms; Resistance R 3 is set to 100 kilohms, and resistance R 4 is set to 100 kilohms, and resistance R 5 is set to 75 kilohms; Resistance R 6 is set to 75 kilohms, and resistance R is set to 75 kilohms for 6 amperes, and resistance R 7 is set to 2.7 ohm; Resistance R 8 is set to 2.7 ohm, and resistance R 9 is set to 2.7 ohm, and resistance R 10 is set to 10 kilohms; Resistance R 11 is set to 470 ohm, and resistance R 12 is set to 100 ohm, and resistance R 13 is set to 10 ohm.
4. a kind of power supply adaptor circuit according to claim 1 is characterized in that: resistance R 17 is set to 620 ohm, and resistance R 19 is set to 20 kilohms; Resistance R 20 is set to 5.1 kilohms, and resistance R 22 is set to 11 kilohms, and resistance R 23 is set to 680 kilohms; Resistance R 24 is set to 56 ohm, and resistance R 30 is set to 82 kilohms, and resistance R 33 is set to 27 ohm; Resistance R 34 is set to 75 kilohms, and resistance R 200 is set to 20 kilohms.
5. a kind of power supply adaptor circuit according to claim 1 is characterized in that: capacitor C 4 is set to 472 pico farads/1 kilovolt, and capacitor C 6 is set to 100 microfarads/50 volt; Capacitor C 7 is set to 22 microfarads/50 volt, and capacitor C 9 is set to 1 nanofarad/50 volt, and capacitor C 16 is set to 100 nanofarads/50 volt; Capacitor C 17 is set to 1 nanofarad/100 volt; Capacitor C 18 is set to 10 microfarads/50 volt, and capacitor C 20 is set to 1 microfarad/50 volt, and capacitor C Y1 is set to 2.2 microfarads/400 volt.
6. a kind of power supply adaptor circuit according to claim 1; It is characterized in that: said resistance R 15 is set to 27 ohm; Resistance R 26 is set to 27 ohm; Capacitor C 10 is set to 1 nanofarad/100 volt, and capacitor C 12 is set to 1000 microfarads/25 volt, and capacitor C 13 is set to 470 microfarads/25 volt.
7. a kind of power supply adaptor circuit according to claim 1; It is characterized in that: the model of said chip U1 is OB2273; The model of piezo-resistance VZ1 is 14N751, and the model of rectifier bridge BR1 is KBP206, and optocoupler U2 is set to EL817; Three ends are adjustable, and shunting a reference source U3 is set to AZ431, and the model of FET Q1 is 4N60.
8. a kind of power supply adaptor circuit according to claim 1; It is characterized in that: the model of diode D1 is IN4148; The model of diode D5 is IN4007, and the model of diode D6 is FR107, and the model that diode D7 is set to is IN4007; The model of inductance L F1 is set to UU9.8, and the model of diode D8 is MBR10100.
9. a kind of power supply adaptor circuit according to claim 1; It is characterized in that: said capacitor C 3, capacitor C 7, capacitor C 12, capacitor C 13 and capacitor C 18 all are set to polar capacitor, and thermistor R100 and R200 all are set to negative tempperature coefficient thermistor.
10. a kind of power supply adaptor circuit according to claim 1 is characterized in that: said diode ZD1 and diode ZD3 all are set to voltage stabilizing didoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204570627U CN202334337U (en) | 2011-11-17 | 2011-11-17 | Power adapter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204570627U CN202334337U (en) | 2011-11-17 | 2011-11-17 | Power adapter circuit |
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| Publication Number | Publication Date |
|---|---|
| CN202334337U true CN202334337U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204570627U Expired - Fee Related CN202334337U (en) | 2011-11-17 | 2011-11-17 | Power adapter circuit |
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| CN (1) | CN202334337U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843051A (en) * | 2012-08-24 | 2012-12-26 | 天津三星电子有限公司 | Power adapter |
| CN104768269A (en) * | 2014-01-02 | 2015-07-08 | 深圳市海洋王照明工程有限公司 | Locomotive lamp driving circuit with lighting and signals |
| CN106100083A (en) * | 2016-02-05 | 2016-11-09 | 广东欧珀移动通信有限公司 | Anti-lightning strike guard method when charging system, charging and power supply adaptor |
| CN106510214A (en) * | 2016-11-29 | 2017-03-22 | 廖婕 | Intelligent comprehensive tea art table |
| CN109088553A (en) * | 2018-09-12 | 2018-12-25 | 上海芯哲微电子科技股份有限公司 | It is a kind of for rotating the power supply adaptor of reel storage device automatically |
-
2011
- 2011-11-17 CN CN2011204570627U patent/CN202334337U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843051A (en) * | 2012-08-24 | 2012-12-26 | 天津三星电子有限公司 | Power adapter |
| CN104768269A (en) * | 2014-01-02 | 2015-07-08 | 深圳市海洋王照明工程有限公司 | Locomotive lamp driving circuit with lighting and signals |
| CN104768269B (en) * | 2014-01-02 | 2019-03-26 | 深圳市海洋王照明工程有限公司 | A kind of locomotive lamp drive circuit having illumination and signal |
| CN106100083A (en) * | 2016-02-05 | 2016-11-09 | 广东欧珀移动通信有限公司 | Anti-lightning strike guard method when charging system, charging and power supply adaptor |
| CN106100083B (en) * | 2016-02-05 | 2017-11-24 | 广东欧珀移动通信有限公司 | Anti-lightning strike guard method and power supply adaptor when charging system, charging |
| CN106510214A (en) * | 2016-11-29 | 2017-03-22 | 廖婕 | Intelligent comprehensive tea art table |
| CN109088553A (en) * | 2018-09-12 | 2018-12-25 | 上海芯哲微电子科技股份有限公司 | It is a kind of for rotating the power supply adaptor of reel storage device automatically |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181117 |