Circuit for generating drive signal

Abstract

The invention discloses a drive signal generating circuit comprising a conversion circuit and a phase splitter. The conversion circuit thereof is used for phase-shifting the rising edge or the falling edge of each pulse of a pulse-width modulation signal so as to generate a conversion signal; the phase splitter separates out each odd-number pulse of the conversion signal to generate a first drive signal and each even-number pulse of the conversion signal to generate a second drive signal. In addition, the invention also discloses a drive signal generating circuit comprising a phase splitter and a phase-shift circuit. The phase splitter thereof separates out every odd-number pulse of the pulse-width modulation signal to generate a first push-pull signal and each even-number pulse of the pulse-width modulation signal to generate a second push-pull signal; and the phase-shift circuit is used for phase-shifting the rising edge or the falling edge of each pulse of the first push-pull signal or the second push-pull signal so as to generate a drive signal.

Description

technical field [0001] The present invention relates to a driving signal generating circuit, in particular to a driving signal generating circuit for providing push-pull related signals to drive electronic devices. Background technique [0002] Generally speaking, the circuit operation of the electronic device needs to provide various driving signals, so the design of the driving signal generation circuit becomes the key circuit design of the front stage of the electronic device, and will directly affect the working performance of the electronic device. For example, in an electronic device that needs to be driven by an AC signal, the usually required AC signal is the drive signal generated by the drive signal generating circuit to drive an inverter (Inverter) to convert the provided DC power into the required AC signal . Regardless of whether the converter is a half-bridge converter or a full-bridge converter, its circuit operation needs to input a set of drive signals to p...

AI Technical Summary

Problems solved by technology

[0004] Although the components included in the signal processing circuit 130 are easily available components, because they include resistor-capacitor circuits, there are problems with setting the initial value and the transient response of the circuit, that is, after the power is supplied, the circuit needs to go through a transient response time before reaching steady state normal operation

In addition, since the signal processing circuit 130 uses resistors as buffer elements to drive the full-bridge converter 180, the driving capability of the full-bridge converter 180 is also limited.

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