Boost converter for improving output stability

A boost converter for improving output stability, comprising:

• a transformer, comprising a main coil and a secondary coil, wherein the main coil receives an input voltage;
• a detection circuit, coupled to the secondary coil, wherein the detection circuit generates a detection voltage;
• a first resistor, coupled to the main coil;
• a power switch element, selectively coupling the first resistor to a ground voltage according to a clock voltage;
• an output stage circuit, coupled to the first resistor, wherein the output stage circuit generates an output voltage;
• a feedback compensation circuit, comprising a linear optical coupler and a voltage regulator, wherein the feedback compensation circuit generates a feedback voltage according to the output voltage;
• a controller, generating the clock voltage according to the feedback voltage and an oscillation voltage;
• an inverter, generating an inverted oscillation voltage according to the oscillation voltage;
• and
• a multiplier, generating a compensation voltage difference according to the detection voltage, the inverted oscillation voltage, and the feedback voltage, wherein the compensation voltage difference is applied to the first resistor.