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

51

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Agilent Technologies 6813B, 6811B, 6812B manual Step Transient, Pulse Transient, Voltt, Voltm Step
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6812B, 6811B, 6813B specifications

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