Conversion circuit and related electronic device

A conversion circuit, comprising:

• a capacitor module, wherein the capacitor module comprises at least a first capacitor and a second capacitor;
• a balancing module, wherein the balancing module comprises at least a first resonant circuit;
• and
• a startup module, wherein the startup module comprises a direct current-direct current converter and a target capacitor,
• the first resonant circuit comprises at least two groups of switches connected in parallel to each other and a first resonant cavity connected between the two groups of switches,
• the first capacitor is connected in series to the second capacitor, and the first capacitor is connected in parallel to the target capacitor,
• the first resonant circuit is separately connected to both ends of the first capacitor and the second capacitor by using the startup module,
• the balancing module is configured to balances voltages at both ends of the first capacitor and the second capacitor by controlling the switches in the first resonant circuit in conjunction with influence of the first resonant cavity on a current, and
• the startup module is configured to start the balancing module and the capacitor module.