Patent ID: 7679220

Claim:
An electronic time switch control circuit comprising: an oscillation period control module configured to generate periodic signals, wherein the oscillation period control module comprises a first capacitor, a charge circuit configured to charge the first capacitor, and a discharge circuit configured to discharge the first capacitor, the charge circuit comprises a first resistor, a first adjustable resistor, and a first diode, one end of the first resistor is connected to an anode of the first diode via the first adjustable resistor, and another end of the first resistor is connected to a power supply; wherein the discharge circuit includes a second resistor, a second adjustable resistor, and a second diode, one end of the second resistor is connected to a cathode of the second diode via the second adjustable resistor, and another end is connected to the anode of the first diode; a cathode of the first diode and an anode of the second diode are connected to ground via the first capacitor; an oscillator configured to receive the periodic signals from the oscillation period control module, and alternately output two kinds of control signals according to the periodic signals; a switch control module configured to receive the two kinds of control signals from the oscillator, and control an electronic product to be turned on and off repeatedly according to the control signals.