Control loops for power converters are complex and rely on the converter’s operation within a window of defined conditions. However, when converters operate outside these defined conditions, they can ...

Most boost converters with PFC may operate in either discontinuous mode or continuous mode. In discontinuous mode (see the figure, a), the switch is turned on when the inductor current reaches zero ...

The definition of power factor (PF) is the ratio of the power drawn from the power grid (apparent power) to the power actually consumed in the load (real power). A power factor of ‘1.0’ is defined as ...

This course introduces more advanced concepts of switched-mode converter circuits. Realization of the power semiconductors in inverters or in converters having bidirectional power flow is explained.

Active Power Factor Correction (PFC) is widely used in today's power supplies. Government regulations and customer requirements must be satisfied when designing these circuits. Increasingly, ...

ON Semiconductor is introducing a critical conduction mode ‘bridge-less*’ totem-pole PFC (power factor correction) controller, claiming it to be industry’s first dedicated IC. Called NCP1680, at its ...