Powerstax unveils extensive range of MIL Spec power modules
The Powerstax PX range of DC-DC converters contains more than 40 products including single, dual and triple output versions with output power up to 30 W. All models have an ultra-wide DC input range of 16 to 40 V and output voltages which may be selected as combinations of 5 V, ±12 V, ±15 VDC. The converters employ fixed high-frequency (400 kHz) switching technology with an on-board input EMC filter and built-in soft start circuit. All modules have output short circuit and overload protection.
The Powerstax PX series pre-regulator module operates up to 50 W and can extend a DC-DC converter’s input voltage range while inhibiting supply rail surges and spikes. The pre-regulator offers three operating modes: Normal mode operation occurs between 16 V to 40 V input voltage when the module is operating in a steady transparency state. Voltage mode is deployed when the bus voltage falls below 16 V putting the voltage regulator module into BOOST mode and raising its output voltage to 20 V. Should the input voltage drop below 10 V the voltage regulator module will safely shut down. And finally surge and spike suppression mode may be used when the input voltage goes above 39 V. The pre-regulator module output voltage is then clamped at 38.5 VDC and can withstand the maximum 80 V/50 ms bus voltage surges and up to 600 V/20 μs spikes.
The Powerstax PX series switching regulator modules provide an extended input voltage range to allow extra low voltage outputs from the output of one of the PX series DC-DC converters. Input voltage range is 4.5 to 32 VDC with outputs of 2.5, 3.3 or 5 VDC as standard.
Providing a hold time 10 μs/μF the Powerstax PX series hold-up module provides an alternative solution to reduce the amount of capacitance needed by charging the hold upcapacitor at high voltage (typical 38 VDC) while limiting the input current. This provides enough time to facilitate an orderly system shut-down in the event of a brown-out or complete power failure.
The final modules in the PX series are two EMC filter modules which meet the requirements of MIL-STD-461D, CE102 levels of conducted power line noise.
All PX series modules have an operating temperature range from -55 to +105 ºC, employ proven SMT technology offering high reliability, low noise and high power density
Typical applications for the Powerstax PX series include military and aviation systems and high reliability industrial applications.
Visit Powerstax at www.powerstaxplc.com.
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