A kind of rapid electric vehicle charger circuitTechnical field
The utility model relates to a kind of electric car charger, particularly relates to a kind of rapid electric vehicle charger circuit.
Background technology
Along with the development of society; electric motor car is more and more general; particularly; as a kind of energy-conserving and environment-protective, the short-distance and medium-distance vehicles convenient, use cost is relatively low of going on a journey; electric motor car is rather well received in areas such as two, three grades of city and countries; become the very effective energy-conservation vehicles; and good electric motor car must be equipped with a good charger; be conducive to the protection to electromobile battery and use; the circuit of existing electric car charger, most circuit structure is complicated, and cost of manufacture is high; charging interval is long, is not easy to popularize.
Utility model content
The purpose of this utility model is just to provide a kind of rapid electric vehicle charger circuit to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises the first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, potentiometer, first diode, second diode, unidirectional thyristor, triode, rectifier and transformer, the emitter stage of described triode simultaneously with the positive pole of described first diode, the cathode output end of described rectifier, the first end of described 3rd resistance is connected with the cathode output end of described quick charger circuit, the colelctor electrode of described triode is connected with the first end of described second resistance, second end of described second resistance is connected with the positive pole of described second diode, the negative pole of described second diode is connected with the control end of described unidirectional thyristor, the first end of described first resistance is connected with the negative pole of described unidirectional thyristor and the cathode output end of described rectifier simultaneously, second end of described first resistance is connected with the negative pole of described first diode, the positive pole of described unidirectional thyristor is connected with the first end of described 4th resistance and the first end of described 5th resistance simultaneously, second end of described 5th resistance is the cathode output end of described quick charger circuit, second end of described 4th resistance is connected with the first end of described potentiometer and the adjustable side of described potentiometer simultaneously, second end of described potentiometer is connected with the base stage of described triode and the second end of described 3rd resistance simultaneously, two inputs of described rectifier are connected with the two ends of described transformer secondary coil, the two ends of described transformer are connected with AC power, the cathode output end of wherein said quick charger circuit and the cathode output end of described quick charger circuit are connected with the positive pole of the battery of described electric motor car and negative pole respectively
Particularly, described first diode and the second diode are light emitting diode.
The beneficial effects of the utility model are:
The utility model adopts pulse charge, be conducive to prolonging service life of battery, output exports as pulsating direct current, only have when its peak voltage of output voltage is greater than battery tension, unidirectional thyristor just meeting conducting, and when pulsating dc voltage is in trough district, the reverse-biased cut-off of unidirectional thyristor, stop to charge in batteries, what thus flow through battery is Rectified alternating current, and between three to four hours, accumulator electric-quantity can be full of, reach the object of quick charge, simultaneously, circuit structure of the present utility model is simple, components and parts used are few, reduce cost of manufacture, there is the value promoted and use.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises the first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, potentiometer RP, first diode D1, second diode D2, unidirectional thyristor SCR, triode VT, rectifier Q and transformer T, the emitter stage of triode VT simultaneously with the positive pole of the first diode D1, the cathode output end of rectifier Q, the first end of the 3rd resistance R3 is connected with the cathode output end of quick charger circuit, the colelctor electrode of triode VT is connected with the first end of the second resistance R2, second end of the second resistance R2 is connected with the positive pole of the second diode D2, the negative pole of the second diode D2 is connected with the control end of unidirectional thyristor, the first end of the first resistance R1 is connected with the negative pole of unidirectional thyristor SCR and the cathode output end of rectifier Q simultaneously, second end of the first resistance R1 is connected with the negative pole of the first diode D1, the positive pole of unidirectional thyristor SCR is connected with the first end of the 4th resistance R4 and the first end of the 5th resistance R5 simultaneously, second end of the 5th resistance R5 is the cathode output end of quick charger circuit, second end of the 4th resistance R4 is connected with the first end of potentiometer RP and the adjustable side of potentiometer RP simultaneously, second end of potentiometer RP is connected with the base stage of triode VT and second end of the 3rd resistance R3 simultaneously, two inputs of rectifier Q are connected with the two ends of transformer T secondary coil, the two ends of transformer T primary coil are connected with AC power.
As shown in Figure 1: AC power is through transformer T step-down, after rectifier Q full-wave rectification, supply circuit works, when the battery (not marking in figure) of electric motor car needs to charge, then each half crest value of the pulsating volage of circuit output end output exceedes the voltage of battery, then unidirectional thyristor SCR is through the collector current triggering and conducting of triode VT, and electric current charges a battery through unidirectional thyristor SCR; When the pulsating volage exported is close to battery tension, IGCT SCR turns off, thus stops charging, regulator potentiometer RP, and the conducting voltage of adjustable triode VT, can trigger unidirectional thyristor SCR conducting when adjusting to triode VT conducting; Wherein the first diode D1 is used as power supply instruction, and the second diode D2 is used as charging instruction.