Combining a flyback unit configuration with an innovative programmable technology helps facilitate the design of circuits intended for high-voltage applications in the analog/mixed-signal fields.

In Flyback converters, one of two drain-node clamp circuits are typically used to protect the MOSFET from the Flyback voltage spike: a Resistor, Capacitor and Diode (RCD), or a Zener diode.

Click to Enlarge Image Figure 6: Output Diode Waveforms (20V/div) (Flyback on top; SEPIC on bottom.) Figure 7 shows the efficiency of both circuits measured at two input voltages. The SEPIC generally ...

Rohm’s PFC + flyback control reference design for consumer and industrial power supply applications only requires a single MCU for control.

In its basic configuration, the flyback switcher contains one transformer, one pulse-width-modulator circuit, one power transistor, and one output diode.

The transformer design for a flyback circuit does not follow normal transformer design procedures. The flyback transformer can be viewed as two inductors sharing a common core.