FIELD: electricity.
SUBSTANCE: functional testing system for power supply units includes a measuring unit (multi-purpose meter) consisting of a voltmeter, ammeter and wattmeter, implemented by means of the Microchip PIC 16F886 microcontroller. At that by means of a built-in 10-channel, 10-bit ADC measurements of voltage and current are made for the tested computer power supply unit. The wattmeter is implemented with software by means of multiplication of the voltmeter and ammeter indications. The system also includes a power unit represented by a dynamic load for the main channels of the tested power supply unit (12 V, 5 V, 3.3 V), static load for standby power supply of the tested unit, indication of the Power Good signal and connection circuit for the tested power supply unit.
EFFECT: extended functional capabilities, provision of complete continuous control of power supply units, reduced time of testing.
4 dwg
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