Articles Supply - 8

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 ...

Eric Micko Electronic Design 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, ...

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 ...

Paul Rako Electronic Design 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. ...

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 ...

Jeff Falin EDN Because of process limitations, all ICs have an input-voltage limitation. This limitation can be cumbersome when you try to step down a high supply voltage to a lower, regulated voltage using a dc/dc converter, such as a linear ...