PWM generation circuit, processing circuit and chip

• Main Authors: HE, Zaisheng, XU, Dengke, LI, Zhanghui
• Format: Patent
• Language: English
• Published: 29.07.2021
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; PULSE TECHNIQUE

Disclosed are a PWM generation circuit, a processing circuit and a chip. The PWM generation circuit is used for controlling the rotation speed of an external electric motor system, characterized in that the PWM generation circuit comprises a second clock frequency pre-divider and a PWM signal generator; a frequency division output end of the second clock frequency pre-divider is connected to a data input end of the PWM signal generator; the PWM signal generator comprises an output frequency divider and a comparator; and a clock output end of the output frequency divider is connected to a comparison input end of the comparator. By means of the technical solution, PWM signals with different duty ratios are output on the basis that complex flows of software are reduced.