Articles - Supply - 10

David Megaw and Bruce Haug, Analog Devices Design Note Introduction A common dc-to-dc converter problem is generating a regulated voltage when the input voltage can be above, below, or equal to the output that is, the converter must perform both ...

Question: Where should the coil go? Answer: Switching regulators for voltage conversion use inductors for temporarily storing energy. These inductors are often very large components and must be positioned in the printed circuit board (PCB) layout ...

I worked on a quasi-resonant energy converter, which in an extremely simplified form looked like the one shown in Figure 1. Figure 1. This is a simplified design for a quasi-resonant push-pull inverter. A push-pull pair of power MOSFETs would turn ...

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 ...