Three-phase switch voltage regulator for preventing charging runaway

Abstract

The invention discloses a three-phase switch voltage regulator for preventing charging runaway. The three-phase switch voltage regulator comprises a fully-controlled bridge rectifier circuit and a control loop, wherein the fully-controlled bridge rectifier circuit comprises a silicon controlled rectifier SCR1, a silicon controlled rectifier SCR2, a silicon controlled rectifier SCR3, a silicon controlled rectifier SCR4, silicon controlled rectifier SCR5 and a silicon controlled rectifier SCR6; an anode of the silicon controlled rectifier SCR1 is connected with a phase A of a three-phase magneto; the anode of the silicon controlled rectifier SCR2 is connected with a phase B of the three-phase magneto; the anode of the silicon controlled rectifier SCR3 is connected with a phase C of the three-phase magneto; cathodes of the silicon controlled rectifier SCR1, the silicon controlled rectifier SCR2 and the silicon controlled rectifier SCR3 all are connected with a storage battery and a load; control electrodes all are connected with the control loop; the anodes of the silicon controlled rectifier SCR4, the silicon controlled rectifier SCR5 and the silicon controlled rectifier SCR6 are grounded; the cathodes are connected with the anodes of the silicon controlled rectifier SCR1, the silicon controlled rectifier SCR2 and the silicon controlled rectifier SCR3 respectively; the control electrodes are simultaneously connected with the control loop; and the control loop comprises a controlled trigger circuit, a sawtooth wave forming circuit, a sampling and amplifying circuit, a synchronous circuit and a controlled power supply circuit. Runaway of the switch voltage regulator can be prevented, so that the power supply stability of the switch voltage regulator is good.

Description

technical field [0001] The invention relates to the technical field of switching voltage regulators, in particular to a three-phase switching voltage regulator for preventing charging runaway. Background technique [0002] The voltage regulator is a commonly used electronic device on motorcycles. It is mainly used to convert the unstable AC power generated by the magneto on the motorcycle into stable DC power for use with loads such as power supply bottles and headlights. After the bridge-type semi-controlled rectification circuit composed of silicon controlled rectifiers and diodes, the entire motorcycle circuit is controlled, such as headlights, meters and other loads and batteries. Usually, it can only be used to charge the battery or when there is no battery (or after the battery is full). supply power to the load. [0003] However, the existing three-phase switching voltage regulator is usually a half-controlled bridge circuit composed of three controllable and three d...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is how to solve the problem of poor stability and easy runaway of the existing switching voltage regulator, and provide a three-phase switching voltage regulator that prevents charging from running out of control, which can prevent the switching voltage regulator from Out of control, so that the switching regulator power supply stability is good

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