Remote control pwm is the abbreviation of PulseWidthModulation. The Chinese meaning is pulse width modulation, referred to as pulse width modulation; pulse width modulation is an analog control method that modulates the transistor base or MOS gate according to changes in the corresponding load. The bias of the pole is used to change the conduction time of the transistor or MOS tube, thereby changing the output of the switching regulated power supply; this method can keep the output voltage of the power supply constant when the working conditions change, and it uses the microprocessor A very effective technique for controlling analog circuits with digital signals.
#The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
What does remote control pwm mean?
Pulse width modulation.
Air conditioning remote control PWM is the abbreviation of PulseWidthModulation. The Chinese meaning is pulse width modulation, referred to as pulse width modulation.
Pulse width modulation is a very effective technology that uses the digital output of a microprocessor to control analog circuits. Its advantages of simple control, flexibility and good dynamic response make it the most widely used technology in power electronics. control method.
Pulse width modulation is an analog control method that modulates the bias of the transistor base or MOS tube gate according to changes in the corresponding load to change the conduction time of the transistor or MOS tube, thereby realizing switching. Changes in the output of the regulated power supply. This method can keep the output voltage of the power supply constant when the working conditions change. It is a very effective technology for using the digital signal of the microprocessor to control the analog circuit. It is widely used in many fields from measurement and communication to power control and conversion.
Advantages
One of the advantages of PWM is that the signals from the processor to the controlled system are all in digital form, without the need for digital-to-analog conversion. Keeping the signal in digital form minimizes the effects of noise. Noise can only affect digital signals if it is strong enough to change a logic 1 to a logic 0 or a logic 0 to a logic 1.
Enhanced noise immunity is another advantage of PWM over analog control, and this is also the main reason why PWM is used for communication at some point. Moving from analog signals to PWM can greatly extend communication distance. At the receiving end, an appropriate RC or LC network can filter out the modulated high-frequency square wave and restore the signal to analog form. In short, PWM is economical, space-saving, and has strong noise immunity. It is an effective technology worthy of being used by engineers in many design applications.
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