The most common switching-power topology is a buck converter, which efficiently transforms high voltages to low voltages. Figure 1 shows a typical buck converter in which the N-channel MOSFET, Q 1, ...

Pulse width modulation is a form of signal communication that transposes a signal from analog to digital form. Analog signals with changing amplitude and frequency pass through a comparator and are ...

Milpitas, Calif. – Intersil's Endura ISL6522B is a single-phase dual-mode synchronous-buck PWM controller/driver IC designed to solve start-up problems associated with pre-biased loads such as found ...

The supply of handset-use power management ICs remains severely tight, prompting the chip suppliers to transition to 12-inch wafer manufacturing, according to industry sources. PWM IC suppliers ...

Taiwan Semiconductor Manufacturing Company (TSMC) is optimistic about the outlook for the power management (PWM) IC market and expects to grab a significant market share thanks to its design ...

Demand is growing, particularly in emerging economies, for high-efficiency three-phase brushless fan motors that can reduce energy consumption and manage fluctuations in power voltage. Such motors ...

Designed for pulse-width modulation (PWM) motor control, the A3948 integrates on-chip DMOS output transistors in an H-bridge configuration. Consequently, the motor ...

iWatt, Inc. introduced the iW1810 AC/DC digital PWM IC, which integrates an 800V bipolar power transistor as well as numerous features to save external components and ensure high efficiency. The ...

PWM or Pulse Width Modulation has generally been regarded as too complicated for PC fan speed control compared against using rheostats or linear voltage regulators such as the LM317. I present here a ...