On 05/18/2018 03:37 PM, Paul Weakley via Trawlers-and-Trawlering wrote:
I have a modified sine wave inverter on my trawler. My microwave will not work on modified sine wave power. The microwave just wants to destroy itself. Are the electronics in an induction cook top similar to a microwave or should it work on modified sine wave inverter power?
Induction burners themselves are fine on MSW power, quite unlike
microwave tubes. In fact, inside an induction hob the incoming power is
first rectified to DC and then inverted to a high frequency AC.
I can't speak to digital control units on any particular model, apropos
of Janice's caution. Most digital electronics don't care. Once again,
digital electronics run on DC, and the incoming AC power is rectified.
Typically, low-voltage DC derived from an AC source is first "stepped
down" with a small AC transformer, and this transformer will be less
efficient and generate more heat with MSW input than with true sine
input; this applies equally to all those "wall warts" that power small
electronic items such as your cell phone charger. Sometimes this can be
a problem if the transformer is marginally sized to begin with or does
not have enough ventilation. Most induction hobs are ventilated with a
fan so this should not be an issue.
-Sean
m/y Vector
lying Long Cay, BS
http://OurOdyssey.BlogSpot.com
On 05/18/2018 03:37 PM, Paul Weakley via Trawlers-and-Trawlering wrote:
> I have a modified sine wave inverter on my trawler. My microwave will not work on modified sine wave power. The microwave just wants to destroy itself. Are the electronics in an induction cook top similar to a microwave or should it work on modified sine wave inverter power?
Induction burners themselves are fine on MSW power, quite unlike
microwave tubes. In fact, inside an induction hob the incoming power is
first rectified to DC and then inverted to a high frequency AC.
I can't speak to digital control units on any particular model, apropos
of Janice's caution. *Most* digital electronics don't care. Once again,
digital electronics run on DC, and the incoming AC power is rectified.
Typically, low-voltage DC derived from an AC source is first "stepped
down" with a small AC transformer, and this transformer will be less
efficient and generate more heat with MSW input than with true sine
input; this applies equally to all those "wall warts" that power small
electronic items such as your cell phone charger. Sometimes this can be
a problem if the transformer is marginally sized to begin with or does
not have enough ventilation. Most induction hobs are ventilated with a
fan so this should not be an issue.
-Sean
m/y Vector
lying Long Cay, BS
http://OurOdyssey.BlogSpot.com
