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May 4 - 6, 2021 | Online
August 16 - 19, 2021 | Atlanta

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Join a community of end users, technologists and policymakers working together to write the next chapter of autonomous innovation and assure its safe and seamless integration into everyday life. XPONENTIAL 2021 is a reimagined hybrid experience offering fresh insight across the full spectrum of unmanned innovation, from AI, to sensors, to cybersecurity. It’s more than an in-person gathering or a virtual event. It’s the best of both worlds.

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Calex Manufacturing Co. Inc.  

Concord,  CA 
United States
  • Booth: 3516

Powering the Next Generation of Mobility

Calex offers a variety of cutting-edge DC-DC power converters and AC-DC battery chargers for e-mobility and industrial applications. Calex power conversion products offer the highest efficiencies and power densities in ultra-compact, light-weight packages, all of which are designed, qualified, tested and manufactured in our Concord, CA facility.


  • 300 Watt HVQ Series DC-DC Converter
    The HVQ Series converters operate over an input voltage range of 250-420Vdc, with full rated power and are offered with a fixed 12V output voltage. Applications include 350Vdc battery systems, such as those used in Electric Vehicle applications....

  • The HVQ Series is offered with a fixed 12V output voltage and up to 25 Amps continuous. The HVQ operates over an input voltage range of 250-420Vdc with full rated power. This DC-DC converter will provide 300 watts of continuous power at 60°C with airflow of 200 LFM. The LLC Resonant topology yields an excellent efficiency of 95%. The HVQ series achieve impressive mechanical and environmental specs while delivering excellent electrical performance in an industry standard through-hole package. The unit is fully protected against input under voltage, input overvoltage, output overcurrent, and short circuit. An On/Off control input enables phased startup and shutdown in multi-bus applications. The HVQ provides 4242Vdc Reinforced isolation from input to output, adequate to deliver a SELV output under single fault conditions. Applications include 350Vdc battery systems, such as those used in Electric Vehicle applications.
  • 300 Watt CEV Series Charger
    The CEV Series can be used as either an external charging source or installed on board a li-ion battery operated application. The charger was designed to withstand extreme weather conditions and is ideal for use in harsh shock and vibration environments....

  • The CEV’s ruggedized packaging and thermal design make the AC-DC charger one of the most resilient on the market. The series can be used as either an external charging source or installed on board a li-ion battery operated application. The CEV Series was designed to withstand extreme weather conditions and is an ideal product for use in harsh shock and vibration environments. The charger also can be easily integrated with a battery pack. The CEV series design includes a universal AC input with an active PFC, which enables the charger to reach a peak efficiency of 95%. The series offers chargers for both 24V and 48V li-ion battery systems, making them ideal for applications such as e-mobility, electric scooters, and electric utility carts. The charger is housed in an air-cooled ruggedized Ingress Protection 67 (IP67) rated enclosure. The overall enclosure is fabricated from an extruded aluminum case that the power module is inserted into and sealed using a thermally conductive material. The IP67 rating ensures that the charger can remain installed during operation of the application without concerns of rain, water-splash, mud, or dust infiltration.

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