Agilent Technologies 6813B, 6811B, 6812B manual Step Transient, 5. Pulse Transients

Front Panel Operation - 4

Step Transient

The Voltage Menu lets you specify an alternate or triggered voltage level that the ac source will apply to the output when it receives a trigger. Because the default transient voltage level is zero volts, you must first enter a triggered voltage before you can trigger the ac source to change the output amplitude. Refer to Chapter 4 of the Programming Guide for more information about programming triggers.

In the following example, the voltage output is set to 120 Vrms and then stepped down to 102 Vrms.

	Action	Display
1.	On the Function keypad, press Output On/Off to enable the output. The Dis	0 V 60 Hz
	annunciator will go off.
2.	Press Voltage to access the Voltage Menu. On the Entry keypad, press 1 2 0 Enter.	VOLT	120
3.	Access the Voltage Menu again and press  to access the triggered voltage	VOLT:T 0
	command.
4.	On the Entry kepad, press 1 0 2 Enter.	VOLT:T	102
5.	Access the Voltage Menu again and press  to access the voltage mode command. It	VOLT:M	STEP
	should be in the default FIXED mode. An ac source function in the FIXED mode
	does not respond to triggers. On the Entry keypad, press ↓ or ° to scroll through the
	mode parameters. When you have STEP, press Enter.
6.	Press Trigger Control and Enter. This initiates (or enables) one immediate trigger	INIT:IMMED
	action.
7.	Press Shift Trigger. This sends the ac source an immediate trigger signal to change	102 V 60 HZ
	the output voltage. The triggered voltage value now becomes the VOLT value.

Pulse Transient

In the following example, the output is four 83.3-millisecond, 120 Vrms pulses at 60 Hz. The figure shows the trigger, pulse count, pulse period, and duty cycle.

NOTE: From the Output Menu, execute the *RST command to reset the ac source. This is necessary because any previously programmed functions remain in effect until cleared.

Trigger

count = 4

120Vrms

102Vrms

83.3ms

250ms

Figure 4-5. Pulse Transients

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