Patent ID: 10211738

Abstract:
The present application relates to the field of circuit design, and discloses a DC-DC conversion circuit system and a forming method thereof. The system may include a primary switch circuit, a charge/discharge circuit, and a secondary switch circuit. The primary switch circuit includes a voltage supply end configured to receive a first direct current voltage and an output end. The charge/discharge circuit includes an input end connected to the output end of the primary switch circuit, and a first output end configured to output a second direct current voltage. The secondary switch circuit includes a voltage supply end configured to receive the first direct current voltage, and an output end connected to the output end of the primary switch circuit. The primary switch circuit is configured to control the charge/discharge circuit to charge or discharge. When a charging current or a discharging current of the charge/discharge circuit is greater than a corresponding threshold, the secondary switch circuit is configured to shunt the charging current or the discharging current. The present application can effectively suppress a ripple of an output voltage, and improve stability of the DC-DC conversion circuit system.