Envelope-detector-less forward data receiving device

A forward data receiving device that demodulates and receives an Amplitude Shift Keying (ASK) modulation signal, the device comprising:

• an input circuit configured to receive the ASK modulation signal as an input;
• a resonance regulating rectifier circuit configured to regulate and rectify an input voltage of the ASK modulation signal on the basis of Pulse Width Modulation (PWM) according to a preset target voltage, and apply a regulated voltage through an output transistor;
• and
• a demodulation circuit based on a digital logic circuit, configured to demodulate the ASK modulation signal according to a trend in a change of the input voltage compared to the regulated voltage, wherein
• the resonance regulating rectifier circuit includes a comparison circuit configured to generate a gate signal for controlling on/off of the output transistor, and generate a sample signal for demodulating the ASK modulation signal according to the trend in the change of the input voltage compared to the regulated voltage.