Application of Constant-Current and Constant-Voltage Buck Circuit in Portable Medical Oxygen Generator
A constant-current and constant-voltage Buck circuit is designed to meet the needs of both charging and power supply in portable medical oxygen generators.This circuit has a voltage and current dual-loop,achieving seamless switching between charging lithium batteries and supplying power to inductive loads,and meeting the demand for short-term overcurrent protection.The circuit uses an integrated driver chip with an external signal tracking pin TRK.Compared with traditional singlechip control,it has the advantages of no embedded programming,high power density,and easy reference and use.
Buck circuitconstant-current and constant-voltageinductive loads
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