Agilent Technologies 6683A Transient Recovery Time, Transient Response Waveform Verification

Table 2-4. Constant Voltage (CV) Tests (continued)

Action Normal Result

Transient Recovery Time

This test measures the time required for the output voltage to return to within 100mV of its final value following a 50% change in output load current. Measurements are made on both the unloading transient (from full load to 1/2 load) and the loading transient (from 1/2 load to full load).

1

2

3

4

5

Turn off the power supply and connect an oscilloscope across +S and -S(see Fig. 2-1).

Turn on the power supply and program the current to its maximum programmable value and the voltage to its full-scale value (see Table 2-2).

Program the Electronic Load as follows:

þOperating mode to constant current.

þInput load current to 1/2 the supply's full rated output current.

þTransient current level to the supply's full rated output current.

þTransient generator frequency = 100Hz.

þTransient generator duty cycle = 50%.

Turn on the transient and adjust the oscilloscope to display response waveform.

Measure both the loading and unloading transients by triggering the oscilloscope on both the negative and positive slopes of the transient. Record the voltage level obtained at the 900-∝s interval .

See Fig. 2-2.

Specified voltage level is reached within 900∝s.

Figure 2-2. Transient Response Waveform

18 Verification