Press in sequence – GW Instek GFG-3015 User Manual

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GFG-3015

p.31

DEG/%

PHASE

TRIG ON

Hz/Vpp

KHz/Vrm

SIGL/MUT

TRIG EXT

Hz/Vpp

SWP CF

SYM

INT/EXT

RATE

Press in sequence.

Press .

The BURST Function will perform on output terminal. Please see Figure (3).

In addition, you can use and the Rotate Knob to modify the
value of Trigger signal Symmetry and set the Burst count you need.

Note: 1.

It won’t make any change on execution and result by taking different step

sequence.

2. Use suitable external signal to set the BURST function you need.

Example of the Setup of GATE

The detailed calculate formula of GATE function as below:

1.Trigger Rate period = Gate period.
2.Symmetry of Trigger signal = 100% - {[(Gate period – Open Gate time)/

Gate period] ×100%}

The Gate period > Open Gate time.
Set the Trigger Type to Multi-Trigger type.
Because the Frequency and Symmetry of Trigger signal have their own

accuracy that is different than main frequency, therefore, when the above
formula is used to calculate the Open Gate time, the value might have to be
modified to close your desire. It’s a normal phenomenon that the Open Gate
time may have less accuracy than your wish.

To set the following conditions for Gate function Example:

Main function: Triangle Wave.

Gate period: 10mS

Main Frequency: 1kHz(1mS).

Open Gate Time: 6mS.

Main Output Amplitude: 10Vpp.

Procedure:

The calculation of setting:

1. Trigger Rate = Gate period = 10ms(100Hz)
2. Symmetry of Trigger signal =100% - {[(10mS – 6mS)/10mS]×100%}= 60%

Press to select Triangle wave for main output.

Press in sequence.

Then press in sequence.

Press to set Trigger Type to Multi-Trigger.

Press to select the source from internal signal.

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FUNC

FREQ

AMPL