Circuit with variable capacitance diode applied to wireless charging

The invention discloses a circuit for applying a variable capacitance diode to wireless charging. Comprising a variable capacitance diode module, an isolation capacitor module and a voltage transformation resistor module, the variable capacitance diode module comprises a variable capacitance diode D, the isolation capacitor module comprises a capacitor C1 and a capacitor C2, the voltage transformation resistor module comprises a resistor R2 and a resistor R3, the variable capacitance diode module is electrically connected to one side of the isolation capacitor module, and the isolation capacitor module is electrically connected to the other side of the isolation capacitor module. The voltage transformation resistor module is electrically connected to the other side of the isolation capacitor module, and the voltage transformation resistor module is electrically connected with the variable capacitance diode module; through the characteristics of the variable capacitance diode, when the external environment is