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Sunset_Gypsies's avatar
Sunset_Gypsies
Explorer
Feb 03, 2020

Electric blanket and inverter

Found an electric blanket that the inverter does not fry.

SoftHeat by Perfect Fit | Luxury Low-Voltage Electric Heated Blanket

The control and blanket run on 18 volt DC, separate power supply feeds the control from 120 vac. Works fine with voltage from a modified sine wave inverter.

Could probably replace the power supply with a 12 to 18 volt DC to DC converter to save energy.

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  • valhalla360's avatar
    valhalla360
    Navigator
    Feb 03, 2020
    Unless I'm misreading, it doesn't need a DC power source. It's 120v AC powered but the heating circuits are DC. Conversion is all internal to the control unit.

    Changing the voltage won't change the efficiency. Wattage is what determines heat output. Wattage is Volts x Amps If you crack open the controller and mess with the voltage assuming you don't increase the amps, you do reduce power consumption but you could achieve the same effect by simply turning down the thermostat so it runs for a shorter period of time.
  • Lwiddis's avatar
    Lwiddis
    Explorer II
    Feb 03, 2020
    Everything is more safe with a pure sine wave inverter.

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