AWG G3 PAD FOR PS3 Especificações descarregar pdf (Página 178)

6 Device PowerSupply High Current Power Supply (HCDPS)

178 System Reference, January 2001

Current and Voltage Measurement

As with the General Purpose and High Voltage DPS, the

High Current DPS can be triggered with a +5V signal (see

“Trigger Circuit” on page 175) to cause it to commence

with measurements of voltages and/or currents.

As the HCDPS only has only one range, it measures all

currents in the high current range.

For measurements of small currents, the HCDPS can be

switched to tristate to allow more accurate measurements

to be made using an SPMU or GPDPS, connected in

parallel (measurements using the GPDPS are described in

the section, “Current and Voltage Measurements

with DPS” on page 164).

A current monitor output is fed to the DUT Board by one

of the eight signal pogo pins. The output is 3V/100A.

Source impedance of this output is 10k Ohm. The refer-

ence for this output is ground sense (sense -).

Voltage measurements can also be carried out using the

HCDPS.

Firmware Commands for the HCDPS

For the High Current DPS there are two new firmware

commands as follows:

1. PSOP and PSOP?

Description:

The PSOP (Power Supply Overvoltage Protection)

command specifies the overvoltage levels, at which a

High Current DPS channel disconnects. Overvoltage

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AWG G3 PAD FOR PS3 Especificações Página 178