* Question
| What is the principle of PWM? |
* Answer
| The principle of PWM is that in the case of input voltage, internal parameters and external load changes, the control circuit performs closed-loop feedback by the difference between the control signal and the reference signal to adjust the on-pulse width of the internal switching device of the Integrated Circuits(ICs), so that the output voltage orThe current is stabilized by the control signal. |
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