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  • Users: overrange
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  1. overrange

    Capacitive Backup for Power Supplies

    I'm working on a circuit that has the requirement of continuing DC power output after failure of 120VAC input for 2.5 seconds. The circuit contains a supply that accepts 120VAC and outputs 48 and 24 VDC. The 24V is what needs backup, as it feeds its own loads and supplies the input power to 2...
  2. overrange

    Device Selection Ideas

    I've just begun the search for a SSR or similar power device to drive a new product. The product will appear as a mostly resistive load (don't know angle yet) that requires a huge slug of heat up front, then a reduced level of heat to do fine control. We will need about 15kW for about 0.5 sec...
  3. overrange

    480V 3-Phase Help - Unbalanced

    This is my first post on this forum. I'm a consultant working on a driver circuit for a new kind of actuator. We need to supply the load with a large slug of power initially, then taper off to a much lower value. Roughly 15KW for 0.5 sec, then back off to an average power of 80 - 200 W for...

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