Articles - Supply - 10

The power factor corrector (PFC) front end of an off-line power supply is subject to the operating frequency limitation caused by the Miller Effect of its associated power MOSFET. This effect is a property of any transistor configuration with a ...

This charge-pump circuit, using just a few diodes and capacitors, ups the input voltage by a factor of 1.5 in contrast to the usual voltage-doubling output. Micropower product designs sometimes require a simple, inexpensive voltage booster to ...

Syntiant, an Irvine, California-based startup with big name backers like Intel and Microsoft, said its custom chips could be used to push Amazon's Alexa into smaller, battery-powered devices like wirebles and wireless headphones that wake ...

This article describes the test results, and the modernization of several BPSs QW-MS605D, made in China, purchased by the author on eBay.com for one of his projects. Michael Gurovich, USA Recently, a large number of reasonably priced Lab BPSs that ...

Part 1 First, the filtering electrolytic capacitors that were installed in front of the inductor were replaced with better ones and with larger capacity. Initially, two electrolytic capacitors with a capacity of 330 uF × 100 V each were ...

Texas Instruments When creating an industrial power supply, one of the most common challenges is transforming the AC voltage supply into a DC voltage supply. Changing an AC voltage to a DC voltage is necessary for nearly every application, from ...

Low quiescent current, also called supply current, might be an important spec for your power-supply design. Quiescent current is the current that a chip needs to operate even if it’s not delivering power. It’s the bare minimum supply ...

Paul Pickering Electronic Design Part 1 Let’s discuss the two most important blocks in a portable or wearable BMS: the battery charger and the battery fuel gauge. Battery Charger A battery charger must monitor the state of the Li-ion battery ...

Paul Pickering Electronic Design Maximizing available battery capacity requires a system-level approach to power efficiency plus components that tightly control battery operation while consuming minimal power. “Doing more with less” ...

A maximum power point tracking (MPPT) controller circuit is extremely useful in solar photovoltaic systems for boosting power usage efficiency. The traditional MPPT design, though, requires the use of a multiplier to calculate power from source ...