| 摘要 |
The invention includes a number of high frequency inverter circuits which develop high frequency signals, preferably in the 20 KHz to 50 KHz range, for use in a work coil, which exhibits inductance and generates a magnetic flux in response to a supplied current, or in a transformer primary winding to effect a magnetic flux output in the form of a transformer action. The magnetic flux output from a work coil may be used, for example, to effect heating of a cooking utensil or the like, and the signal transmitted through a transformer may be used, for example, in electrical welding or the like. Both current fed and voltage fed inverters, which use one or more high frequency switches, such as SCR's, as well as multiplexed and stacked inverters for efficient time sharing of components, are disclosed.
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