| 摘要 |
The power supply circuit for removing the RF noise included in the power applied to the audio amplifier comprises a first power generator for receiving AC power from a transformer to generate constant voltage, a ripple filter for filtering the RF noise included in the constant voltage from the first power generator, and a second power generator for receiving the output of the first power generator to generate a predetermined level of constant voltage. The ripple filter includes a low pass filter a transistor for outputting the voltage having a low band charactristic, and a capacitor for removing the RF noise.
|
