A linearized DC lamp controller

Research output: Contribution to journalArticle

Abstract

The design of a simple and inexpensive battery powered lamp controller for microscope lamps commonly used in patch clamp and other biophysical studies is described. The circuit linearizes the normally exponential voltage-intensity curve of standard 12-V lamps by using an operational amplifier to provide feedback to the drain of a power MOSFET. When the unit is turned off, a charging circuit recharges the battery at a constant potential until the battery voltage reaches a preset level. The charging voltage is then reduced to balance the self-discharge rate of the battery.

Original languageEnglish (US)
Pages (from-to)203-206
Number of pages4
JournalJournal of Neuroscience Methods
Volume39
Issue number3
DOIs
StatePublished - 1991
Externally publishedYes

Keywords

  • Electrophysiology
  • Lamp controller
  • Microscope
  • Patch-clamp recording
  • Tissue culture
  • Voltage clamp

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

A linearized DC lamp controller. / Galbraith, James.

In: Journal of Neuroscience Methods, Vol. 39, No. 3, 1991, p. 203-206.

Research output: Contribution to journalArticle

@article{f9191846140d4790a32809e4c55ae00e,
title = "A linearized DC lamp controller",
abstract = "The design of a simple and inexpensive battery powered lamp controller for microscope lamps commonly used in patch clamp and other biophysical studies is described. The circuit linearizes the normally exponential voltage-intensity curve of standard 12-V lamps by using an operational amplifier to provide feedback to the drain of a power MOSFET. When the unit is turned off, a charging circuit recharges the battery at a constant potential until the battery voltage reaches a preset level. The charging voltage is then reduced to balance the self-discharge rate of the battery.",
keywords = "Electrophysiology, Lamp controller, Microscope, Patch-clamp recording, Tissue culture, Voltage clamp",
author = "James Galbraith",
year = "1991",
doi = "10.1016/0165-0270(91)90098-K",
language = "English (US)",
volume = "39",
pages = "203--206",
journal = "Journal of Neuroscience Methods",
issn = "0165-0270",
publisher = "Elsevier",
number = "3",

}

TY - JOUR

T1 - A linearized DC lamp controller

AU - Galbraith, James

PY - 1991

Y1 - 1991

N2 - The design of a simple and inexpensive battery powered lamp controller for microscope lamps commonly used in patch clamp and other biophysical studies is described. The circuit linearizes the normally exponential voltage-intensity curve of standard 12-V lamps by using an operational amplifier to provide feedback to the drain of a power MOSFET. When the unit is turned off, a charging circuit recharges the battery at a constant potential until the battery voltage reaches a preset level. The charging voltage is then reduced to balance the self-discharge rate of the battery.

AB - The design of a simple and inexpensive battery powered lamp controller for microscope lamps commonly used in patch clamp and other biophysical studies is described. The circuit linearizes the normally exponential voltage-intensity curve of standard 12-V lamps by using an operational amplifier to provide feedback to the drain of a power MOSFET. When the unit is turned off, a charging circuit recharges the battery at a constant potential until the battery voltage reaches a preset level. The charging voltage is then reduced to balance the self-discharge rate of the battery.

KW - Electrophysiology

KW - Lamp controller

KW - Microscope

KW - Patch-clamp recording

KW - Tissue culture

KW - Voltage clamp

UR - http://www.scopus.com/inward/record.url?scp=0026003385&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026003385&partnerID=8YFLogxK

U2 - 10.1016/0165-0270(91)90098-K

DO - 10.1016/0165-0270(91)90098-K

M3 - Article

VL - 39

SP - 203

EP - 206

JO - Journal of Neuroscience Methods

JF - Journal of Neuroscience Methods

SN - 0165-0270

IS - 3

ER -