Novel supercapacitor voltage sharing circuit

Abstract

Disclosed is a novel supercapacitor voltage sharing circuit. The novel supercapacitor voltage sharing circuit comprises resistors, operational amplifiers, a triode and a supercapacitor single body. The negative input end of the operational amplifier I is used for inputting a single body reference voltage, a module reference voltage is input to the positive input end of the operational amplifier I through a wire and the resistor R3, one end of the resistor R4 is connected to the positive input end of the operational amplifier I, the other end of the resistor R4 is connected to the output end of the operational amplifier I, the output end of the operational amplifier I is connected to the negative input end of the operational amplifier II through the resistor R5, the positive input end of the operational amplifier II is connected to a VCC, the output end of the operational amplifier II is connected with the base of the triode through a wire and the resistor R2, and the emitter of the triode is connected back to the collector of the triode through a wire, the supercapacitor single body and the resistor R1. The novel supercapacitor voltage sharing circuit solves the problems that the difference between the supercapacitor single body and a single body can not be fed back and the voltage sharing speed is low in the prior art.

Description

technical field [0001] The invention relates to the technical field of supercapacitors, in particular to a novel supercapacitor voltage equalizing circuit. Background technique [0002] With the outstanding requirements of environmental problems and the development of new technologies, new energy vehicles and special vehicles have emerged at the historic moment. The starting power supply system of these vehicles uses a large number of super capacitors to solve the instantaneous high power problem, thereby greatly improving the service life of the battery. Pressure equalization technology is an urgent problem to be solved at present. [0003] Due to the low withstand voltage of the supercapacitor monomer, it is generally around 2.8V. In practical applications, the voltage is far higher than this voltage, so multiple monomers need to be used in series, and a voltage equalizing circuit needs to be used at the same time. There are two types of voltage equalization circuits, on...

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Problems solved by technology

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a new type of supercapacitor voltage equalization circuit, which solves the problem that in the prior art, the difference between the supercapacitor monomer and the monomer cannot be fed back, and the voltage equalization speed is relatively slow, etc. question

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