Low-cost pulse generator has variable delay

The TGP110, new from TTi (Thurlby Thandar Instruments), is a general-purpose pulse generator operating from 0.1Hz up to 10MHz. As well as providing independent control of pulse width and pulse repetition rate, it offers independently variable pulse delay. The generation of pulses for the stimulus and control of electronic systems is beyond the capability of all but the most sophisticated of function generators.

The architecture of the TGP110 enables it to generate pulses of a fixed width regardless of the repetition rate, offering duty cycles which can extend down to 1 in 100 million.

It can generate pulse widths in the range 50ns to 5sec.

There are eight overlapping decade ranges with vernier control within each range.

The period range is 100ns to 10sec, and delay is independently adjustable over the same range as pulse width.

In addition to continuous operation, single or multiple pulses can be generated in response to trigger or gating signals with precisely defined timing relationships.

A dedicated pulse-waveform output amplifier provides flat-top pulses with fast rise and fall times at variable amplitude.

A complement switch inverts the mark/space polarity.

The TGP110 offers selectable delay between the sync output and pulse output. In triggered mode, this also sets the delay between a trigger signal and the start of the pulse.

The generator can also operate in square-wave and double-pulse modes.

In square mode, square waves are generated at a frequency set by the period controls alone.

This provides a convenient means of generating variable-period edges where the pulse width is unimportant, for example.

In double-pulse mode, a second pulse is generated within every period at a user-set delay after the start of the first pulse.

The TGP110 is housed in a compact ABS bench case with full electromagnetic screening.

The price is £199 (plus VAT).