Back to results
US 6,445,596 B1Granted
Magnetron drive power supply
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMakoto Mihara, Hisashi Morikawa, Takeshi Irii
Life of this patent
Estimating the term…
Abstract
High-voltage diodes (6) and (7) and high-voltage capacitors (8) and (9) making up a high-voltage circuit are connected and are molded of a resin (22) except that terminals (21a) and (21b) are drawn out as a small-sized high-voltage module (23) in one piece.
Claims10
A magnetron drive power supply comprising:
- a unilateral power supply for converting a commercial power supply into a unilateral power supply;
- a rectification filter section for rectifying and smoothing said unilateral power supply;
- an inverter section for converting said unilateral power supply provided through said rectification filter section into a high-frequency AC voltage as at least one semiconductor switching element is turned on/off;
- a step-up transformer for stepping up an output of said inverter section;
- and
- a high-voltage circuit comprising:
- two high-voltage capacitors in bare-chip states;
- and
- two high-voltage diodes, wherein said high voltage circuit is for full-wave voltage doubling and voltage rectifying of an output of said step-up transformer, and wherein said high-voltage circuit is provided as a unit molded of a resin.
6 more elements
A magnetron drive power supply comprising:
- a unilateral power supply for converting a commercial power supply into a unilateral power supply,
- a rectification filter section for rectifying and smoothing said unilateral power supply,
- an inverter section for converting said unilateral power supply provided through said rectification filter section into a high-frequency AC voltage as at least one semiconductor switching element is turned on/off,
- a step-up transformer for stepping up an output of said inverter section, and
- a high-voltage circuit provided as a unit molded of a resin for full-wave rectifying and voltage doubling an output of said step-up transformer, said high-voltage circuit comprising:
- two high-voltage capacitors, wherein said two high-voltage capacitors are each in a bare-chip state before being molded in said resin;
- and
- two high-voltage diodes, wherein said two high-voltage diodes are each in a bare-chip state before being molded in said resin.
5 more elements
A magnetron drive power supply comprising:
- a unilateral power supply for converting a commercial power supply into a unilateral power supply,
- a rectification filter section for rectifying and smoothing said unilateral power supply,
- an inverter section for converting said unilateral power supply provided through said rectification filter section into a high-frequency AC voltage as at least one semiconductor switching element is turned on/off,
- a step-up transformer for stepping up an output of said inverter section, and
- a high-voltage circuit provided as a unit molded of a resin for half-wave rectifying and voltage doubling an output of said step-up transformer, said high-voltage circuit comprising:
- a high-voltage capacitor in a bare-chip state before being molded in said resin;
- and
- a high-voltage diode in a bare-chip state before being molded in said resin.
5 more elements
Dependencies are inferred from the claim text.