40A Precision Pulsed Source – Performance Series

The SpikeSafe™ 40A Performance Series Current Source is part of the SpikeSafe Performance Series Precision Pulsed Current Source Family. Output pulses have nanosecond rise and fall times – key to precise and repeatable LED, LIDAR, VCSEL photometric and electrical measurements. This current source supplies precision DC, continuous pulse, and single pulse current with excellent pulse fidelity.  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. Continuous power conversion technology means no duty cycle or pulse width limitations. Multiple output conductor pairs keep maximum current/conductor below 5A, 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 High Current Pulsed 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 0.4%+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-4.5µs and the typical pulse width jitter is 30ns.

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

40A Source Pulse Shapes

Precision pulsing is key to best practices test and measurement. The 40A 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. 

Vektrex Precision Pulsed Current Source 40A 43.1V current pulse 100uS pulse width 2600ns rise time
Vektrex Precision Pulsed Current Source 40A 43.1V current pulse 100uS pulse width 2600ns rise time

Learn more about our Vektrex High Current Pulsed SMU and SpikeSafe Performance Series Pulser.