Switching power energy efficiency control circuit
A switching power supply circuit, switching power supply technology, applied in the direction of electrical program control, program control in sequence/logic controllers, etc., can solve the problem of high cost, achieve the effect of saving cost and speeding up the development cycle
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[0031] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0032] Such as figure 1 As shown, this embodiment can be applied to audio power amplifiers. The energy efficiency control circuit 1 controls the working state of the switching power supply circuit 2 according to the presence or absence of the audio signal 100, and the switching power supply circuit 2 is used to drive the audio power amplifier 3 to work, so that the audio power amplifier 3 processes the audio signal 100 to play music . It should be noted that the switching power supply circuit 2 of this embodiment is an ordinary switching power supply chip, which does not have a green function, and the audio power amplifier 3 is also an ordinary audio power amplifier without a standby function.
[0033] Such as figure 2 As shown, a switching power supply energy efficiency control circuit of this embodiment includes a switching power supply ...
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