32A Precision Pulsed Source – Performance Series

The SpikeSafe™ 32A Performance Series Current Source is part of the SpikeSafe Performance Series Precision Pulsed Current Source Family. It offers continuous power conversion technology, meaning no duty cycle or pulse width limitations. This current source supplies precision DC, continuous pulse, and single pulse current with excellent pulse fidelity. Output pulses have nanosecond rise and fall times – key to precise VCSEL, LIDAR, LED photometric and electrical measurements. A precision hardware-controlled timing system supports pulse widths from 10µs to 15000s. Hardware triggering ensures measurement repeatability. Programmable load tuning alters the SpikeSafe current regulator response to compensate for load conditions, cable impedance, and length. Multiple output conductor pairs keep maximum current/conductor below 4A, allowing the current output to be routed through standard switching and interconnect devices.

Vektrex also offers a source measure unit for photonic and other applications. Learn more about Vektrex SMU.

An optional bias current module supports junction temperature (Tj), thermal resistance (RΘ), and dynamic thermal impedance measurements.

Devices being tested are protected with a gentle turn-on during ramp-up and with SpikeSafe load protection during operation. SpikeSafe load protection continuously monitors voltage and current patterns and instantly shuts down the drive current when device anomalies are detected.

The notable specifications for this current source are as follows: the low range output current accuracy is 0.04%+1.4mA. The high range output current accuracy is 0.08%+8mA. The pulse width range is 10µs-15000s and the pulse width accuracy is 1.3µs. The pulse rise/fall time is 350ns-4.5ns and the typical pulse width jitter is 30ns. 

Vektrex-developed Control Panel Software Application is available with this current source.

32A Source Pulse Shapes

Precision pulsing is key to best practices measurements. The 32A Precision Pulsed Current Source offers programmable pulse width flexibility. It is capable of long pulse widths (ms to seconds) and short pulse widths (100us pulse widths and faster). With the pulse source, minimum 10us pulse widths are possible.  Pulse width accuracy is 1.3us with pulse rise and fall times of 350ns to 4.5us. Ramp time is adjustable.  Fast transient response saves devices.

Vektrex Precision Pulsed Current Source 32A 41.2V current pulse 100uS pulse width 2230ns rise time
Vektrex Precision Pulsed Current Source 32A 41.2V current pulse 100uS pulse width 2230ns rise time