Control circuit of automobile air conditioner blower
A technology for controlling circuits and blowers, applied in pump control, mechanical equipment, machines/engines, etc., can solve the problems of poor circuit anti-interference, poor circuit portability, easy distortion of PWM waveforms, etc., to achieve good circuit reliability, low cost, Low delay and distortion filtering effect
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[0017] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can more clearly understand how to practice the present invention. It should be understood that while the invention has been described in connection with preferred specific embodiments thereof, these embodiments are intended to illustrate, not limit, the scope of the invention.
[0018] Such as figure 1 As shown in the figure, a control circuit of an automobile air-conditioning blower is shown in the figure, including:
[0019] A processor CPU for outputting PWM signals with different duty ratios;
[0020] A blower load circuit module Rc, including a linear power module LPM, a blower M and a DC power supply S, the linear power module LPM controls the speed of the blower according to the PWM signal;
[0021] A PWM port T1, connected to the processor CPU, for obtaining the PWM signal;
[0022] A blower contr...
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