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Simplified power factor correction: Sensorless control could enable smaller, more reliable electronic adapters

Single-phase power factor correction (PFC) circuits—a kind of front-end AC/DC converters—are ubiquitous in a variety of ...
Electronic Design

Digital Current-Mode Control Challenges Analog Counterparts

Switch-mode power supplies can use digital current-mode techniques for protection against peak currents, magnetic field "ratcheting," and input-voltage variations. Digital control of switch-mode power ...
EDN

Power Tips #137: Implementing LLC current-mode control on the secondary side with a digital controller

Inductor-inductor-capacitor (LLC) serial resonant circuits, as shown in Figure 1, can achieve both zero voltage switching on the primary side and zero current switching on the secondary side in order ...
Electronic Design

Control Method Solves Low Duty-Cycle Dilemmas

Modern buck switching-regulator circuits need to provide lower and lower output voltages to power leading-edge digital logic ICs such as digital signal processors ...