Agilent Technologies 5962-8200 service manual Electronic Load, Test Setup

Verification and Performance Tests - 2

-S	-	+	+S
NOTE: Connector
is removable
+	50VDC		TO
-

-

DVM, Scope, or RMS voltmeter (for CV tests) +

SENSE

Local

Remote

Set to Remote

-S	-	+	+S	SENSE
				Local
				Remote
+	50VDC MAX TO
-

Set to

		Remote
DC	-
		Load
Ampmeter		resistor
		400 ohm

+

DVM or

-

B.

RMS voltmeter

(for CC tests) +

Current monitor

-+

-S	- +	+S	SENSE
			Local
			Remote
+	50VDC MAX TO
-			Set to

Remote

Electronic

Load (see note)

Note: Use dc supply with same polarity

connectons for - CC tests. Replace electronic load with resistors

for CC noise test.

-

DC

Ampmeter

+

Load resistor

400 ohm

-+

External

DC supply

A.

C.

Figure 2-1. Test Setup

Electronic Load

Many of the test procedures require the use of a variable load capable of dissipating the required power. If a variable resistor is used, switches should be used to either; connect, disconnect, or short the load resistor. For most tests, an electronic load can be used. The electronic load is considerably easier to use than load resistors, but it may not be fast enough to test transient recovery time and may be too noisy for the noise (PARD) tests.

Fixed load resistors may be used in place of a variable load, with minor changes to the test procedures. Also, if computer controlled test setups are used, the relatively slow (compared to computers and system voltmeters) settling times and slew rates of the power supply may have to be taken into account. "Wait" statements can be used in the test program if the test system is faster than the supply.

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