Mosfets mounted on an aluminium plate.
L200 current source mosfet matching circuit.
-
Use 12 volts for IC1 (STMicroelectronics
L200) Vsupply.
-
Digital voltmeter to three decimal places at 2 to 6 volts
recommended.
-
Current set to 500mA (higher current cause device heating).
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Mount DUTs on common heatsink as per picture.
-
Allow reading to stabilize (about 10 seconds) before noting
value.
-
Once close matches have been ascertained retest those matches
to get best fits.
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This page last modified on: 7th March
2005
All information, drawings and images Copyright © 1995 -
2005 Susan Parker unless
otherwise credited.
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