Pspice Simulation Power Supply with Current Type Single-Ended Flyback Output with UC3845

 

FLYBACK CONVERTER

The single-ended flyback switching power supply has been widely used in the power supply of automatic control and intelligent instrument because of its advantages of simple structure and few components . The duty cycle of the power MOSFET is regulated by pulse width modulation (PWM) technology to stabilize the output voltage. This circuit used a high-performance integrated control chip UC3845 as a pulse width modulation device. Its main features are an internal oscillator, high-precision error comparator, cycle-by-cycle current sampling-comparison, low start-up current, high-current totem pole output, etc., which are ideal devices for driving MOSFETs