40A DC / Continuous Pulse Current Source

The SpikeSafe™ 40A DC / Continuous Pulse Current Source is part of the SpikeSafe DC / Continuous Pulse Current Source family. This current source features precision pulsing with 10us minimum pulse widths and nanosecond rise times. 40A DC / Continuous Pulse Current Sources provide reliable and accurate DC or continuous pulse current drive at compliance voltages up to 200V. This capability makes the 40A an ideal choice to power series circuits. The 40A source channel delivers up to 6400W of output power at an industry-leading 96% power conversion efficiency. High efficiency reduces electricity and facility cooling needs, lowering the total cost of ownership for systems. Continuous power conversion technology means no duty cycle or pulse width limitations.

Adjustable load tuning allows the SpikeSafe to compensate for load conditions, cable impedance, and length. The result is output pulses with nanosecond rise and fall times. Multiple output conductor pairs keep maximum current per conductor below 5A, allowing the current output to be routed through standard interconnect devices. A built-in data acquisition system samples pulsed or DC voltage and current to support LM-80 monitoring requirements. 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 drive when device anomalies are detected. This current source is available configured for maximum compliance voltages of 50V, 100V, or 200V. Its maximum current is 40A, with an output current accuracy of 0.04%+1.4mA (low range) and a pulse width range of 10µs-15000s.

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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. 


Performance Curves

This model includes buck and is available for use with an internal power supply (300W or 600W).  For total output power 6.4kW), an auxiliary power supply is required. Please consult Vektrex for auxiliary power supply recommendations.

Learn more about our SpikeSafe DC / Continuous Pulse Current Sources here.