Zeus MOSFET Matching

Mosfets mounted on an aluminium plate.

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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).

• 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.