Versatile 3-channel high-voltage power supply for microchip capillary electrophoresis
- 16 October 2003
- journal article
- Published by Royal Society of Chemistry (RSC) in Lab on a Chip
- Vol. 3 (4) , 324-328
Abstract
The fabrication of a battery operated 3-channel high voltage power supply for microchip capillary electrophoresis is described. The power supply consists of two positive and one negative DC–DC converters, a microprocessor controlled timer, a battery and a transformer to recharge the battery and feed the high voltage relays. This arrangement allows the possibility to control the potentials applied in the 0 to ±4000 V range to a variety of microchip setups. It can also be easily adapted to perform either gated or pinched injection. The inclusion of a rechargeable battery was adopted to feed the DC–DC converters to reduce noise levels and achieve portability.Keywords
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