Flyback controllers
Achieve enhanced efficiency, EMI and standby power
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Active-clamp & ZVS flyback controllers
Our flybacks feature a dissipative clamp replaced with lossless active clamp, which is used to achieve zero-voltage switching (ZVS).
PWM and flyback controllers
Our fixed-frequency PWM controllers support several power topologies including SEPIC, forward, and many more. Our flyback controllers improve efficiency, minimize standby power, and minimize EMI.
Offline flyback converters
Our offline flyback converters have a 700-V integrated FET and can be configured as a flyback or a high-voltage buck converter.
Power trends
Minimize your solution size while maximizing your efficiency
Our latest flyback controllers enable zero-voltage switching (ZVS) and active clamp flyback (ACF) topologies which achieve improved efficiency while increasing power density and shrinking the size of the power supply. ZVS drastically reduces switching losses which in turn enables higher switching frequency capability and reduces the size of the magnetics. ACF also improves on efficiency by replacing the passive clamp with an active clamp, recovering the leakage energy, and delivering it to the output. Finally, integrated features further help reduce the external component count and simplify power supply design.
Ultra-low standby power for low power consumption
Our solutions are capable of offering ultra-low standby power (< 5 mW at no load). This not only achieves but surpasses energy efficiency requirements from the Code of Conduct (CoC) and Department of Energy (DoE) in household goods and appliances. Additionally, ultra-low standby power helps reduce power consumption and extend battery life in HV battery applications such as HEV/EV and battery-back up units.
Technical resources
Design & development resources
UCC28782 active clamp flyback converter 65-W USB-C PD EVM with LMG2610 integrated GaN half-bridge
UCC28782EVM-030 demonstrates high-efficiency and high-density for a 65-W USB Type-C™ power delivery (PD) off-line adapter using the UCC28782 active-clamp flyback controller. The input supports a universal 90 Vac to 264 Vac and the single output can be set to 5 V, 9 V and 15 V all at 3-A (...)