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Voltage Converter Circuits
Designed by David A. Johnson, P.E.
Last Updated on:
Monday, April 21, 2008 04:19 AM
Master Category List - Dave's Circuits
More Converter Circuits
DC to DC Power Supplies
Converters: Frequency to Voltage
Converters: Period to Voltage
Converters: Sine to Square Wave
Converters: Voltage Converters: Voltage to
Frequency
High Voltage Power Supplies Switchmode Power
Supplies Voltage Controlled Oscillators
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0.5V Negative Supply
Although not very efficient, this simple circuit, consisting of two LEDs and a photo diode, generates a negative voltage with a current level of a couple milliamps. It is ideal for
supplying a negative rail to low power “rail to rail” op amp circuits, which need to have a true zero volts output.
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- 0.5v to 6v Voltage Converter
Conventional silicon transistors just can't operate at voltages less than about 0.7v. Old germanium transistors could be used, but those are hard to find
these days and most are rather large in size. Some new n-channel MOSFET devices with very low gate-source threshold voltage can operate at quite low voltages. I've been experimenting
with various devices and came up with one circuit, which demonstrates how to boost the low voltage from a single solar cell to a higher voltage.
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More Converter Circuits
Master Category List - Dave's Circuits
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