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PG505: Difference between revisions
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|mfg=Tektronix | |mfg=Tektronix | ||
|type=PG505 | |type=PG505 | ||
|function= | |function=100 kHz, 80 V pulse generator | ||
|class=pulse generator | |class=pulse generator | ||
|image=Tek_pg505_front1.jpg | |image=Tek_pg505_front1.jpg | ||
| Line 33: | Line 33: | ||
==Operation== | ==Operation== | ||
The main controls are a pair of concentric switches for pulse period and pulse duration, with the latter mechanically limited to prevent the duration range to be set higher than the period range. | The main controls are a pair of concentric switches for pulse period and pulse duration, with the latter mechanically limited to prevent the duration range to be set higher than the period range. | ||
When period and duration switches are in the same position and the variable controls set ×1 (ccw) the output runs at 50% duty cycle. | |||
In the leftmost position of the duration switch, the output is locked in its "on" state so that the amplitude can be set conveniently with a DC voltmeter attached to the output. | In the leftmost position of the duration switch, the output is locked in its "on" state so that the amplitude can be set conveniently with a DC voltmeter attached to the output. | ||
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When the ramp reaches the threshold, an output pulse of the set duration is triggered. | When the ramp reaches the threshold, an output pulse of the set duration is triggered. | ||
When the duration switch is put in the rightmost position (which mechanically forces the period switch to the same), both the rate and duration generator circuits are disabled. | When the duration switch is put in the rightmost position as well (which mechanically forces the period switch to the same), both the rate and duration generator circuits are disabled. | ||
In this "EXT DURATION" mode, the output simply follows the Delay/Ext Duration input | In this "EXT DURATION" mode, the output simply follows the Delay/Ext Duration input as compared to the threshold set by the variable delay potentiometer (0−10 V). | ||
==Rear Interface== | ==Rear Interface== | ||