The voltage doubler described in this Design Idea is a modification of the Dickson charge pump. Unlike that circuit, it needs no DC input voltage, but only a digital clock whose peak value is ideally ...

Find out how a digital technique performs multiplication on two bitstreams and avoids the cost of the analog multiplier.

Sponsored by: Texas Instruments Charge pumps are ideal for designs using a larger, main single-voltage power supply that requires lower-current auxiliary voltage sources, and can handle ICs and ...

[Jonathan Thomson] just finished writing up his entry for the 7400 logic contest. It’s a voltage doubler that uses a 74HC14 logic chip. Because this is not at all what the chip was meant for–and he’s ...

I'm experimenting with underclocking my athlon 1.4 to get the best combo of cooling/quietness. Obviously, I'm changing both the vcore voltage and the multiplier. Is there a website that tells me the ...

[Jonathan Thomson] just finished writing up his entry for the 7400 logic contest. It’s a voltage doubler that uses a 74HC14 logic chip. Because this is not at all what the chip was meant for–and he’s ...

A few months ago I picked up an Asus K53TA-BBR6 laptop, which has an AMD A6-3400M processor - quadcore 1.4GHz with turbo to 2.3GHz. Interestingly enough, the current version of K10STAT, which is a ...

A capacitor that you charge through a resistor operates at 50% efficiency; hence, many engineers avoid using switched-capacitor dc/dc converters. That efficiency figure holds true only for capacitors ...