Boosted circuit

Abstract

The invention discloses a voltage booster circuit, the development cost and the maintenance cost of which are lower. The voltage booster circuit comprises a switch, and further has a signal generating circuit, wherein the signal generating circuit outputs a pulse signal to control the opening and the closing of the switch. The invention is widely applied to consumption electronic products.

Description

technical field [0001] The invention relates to a voltage boosting circuit, in particular to a voltage boosting circuit which internally provides a control signal. Background technique [0002] In the design of many consumer electronics products, power supply design is often the difficulty of design, and efficient, stable and reliable power supply scheme design has always been the pursuit goal of technicians and researchers. With the increasingly fierce competition of consumer electronics products, low-cost and high-performance power supply designs are increasingly favored by manufacturers. [0003] As the power supply of consumer electronic products, the booster circuit currently has two main solutions. The first is to use a dedicated booster circuit chip, and the second is to use resistance capacitance and transistors to build a dedicated booster circuit according to specific applications. The performance of the boost circuit provided by the dedicated chip is good, but th...

AI Technical Summary

Problems solved by technology

Since the required pulse frequency and duty cycle are variable, a common method is to use the GPIO (General Purpose Input / Output) analog output of the MCU (Micro Controller Unit, microcontroller), or through a dedicated The PWM pulse module provides PWM pulses, which increases the amount of system development and maintenance costs to a certain extent

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