POWER CONVERTER FOR ENGINE GENERATOR
First Claim
Patent Images
1. A power converter comprising:
- an insulative support;
a rectifier module coupled to and supported by the insulative support, the rectifier module configured to receive AC power from a source;
plate-like DC bus elements disposed in the insulative support and separated from one another by an insulative plate, the DC bus elements receiving DC power from the rectifier module;
a power converter circuit supported by the insulative support and contacting the DC bus elements to receive the DC power and to convert the DC power to a desired output power; and
a drive circuit board supported by the insulative support and coupled to the power converter circuit to command operation of the power converter circuit during operation.
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Abstract
A power converter for an engine generator includes an insulative support that receives and supports circuit components for converting incoming AC power to desired power, such as power suitable for a welding application. One or more rectifier modules are provided that are received and supported by the support. Three such modules may be provided for receiving three phase power from a generator. DC power from the rectifier module is applied to DC bus plates. The plates may be coupled to capacitors. A power conversion circuit, such as a buck converter, is coupled to the DC bus plates to convert the DC power to output power.
122 Citations
20 Claims
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1. A power converter comprising:
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an insulative support; a rectifier module coupled to and supported by the insulative support, the rectifier module configured to receive AC power from a source; plate-like DC bus elements disposed in the insulative support and separated from one another by an insulative plate, the DC bus elements receiving DC power from the rectifier module; a power converter circuit supported by the insulative support and contacting the DC bus elements to receive the DC power and to convert the DC power to a desired output power; and a drive circuit board supported by the insulative support and coupled to the power converter circuit to command operation of the power converter circuit during operation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A power supply comprising:
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an engine; a generator couple to the engine and configured to generate AC power in operation; and a power converter comprising an insulative support, a rectifier module coupled to and supported by the insulative support, the rectifier module configured to receive AC power from a generator, plate-like DC bus elements disposed in the insulative support and separated from one another by an insulative plate, the DC bus elements receiving DC power from the rectifier module, a power converter circuit supported by the insulative support and contacting the DC bus elements to receive the DC power and to convert the DC power to a desired output power, and a drive circuit board supported by the insulative support and coupled to the power converter circuit to command operation of the power converter circuit during operation. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A power supply comprising:
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an engine; a generator coupled to the engine and configured to generate AC power in operation, the generator configured to generate three phase power in operation; and a power converter comprising an insulative support, three rectifier modules coupled to and supported by the insulative support, the rectifier modules configured to receive three phase AC power from a generator, plate-like DC bus elements disposed in the insulative support and separated from one another by an insulative plate, the DC bus elements receiving DC power from the rectifier module, a power converter circuit supported by the insulative support and contacting the DC bus elements to receive the DC power and to convert the DC power to a output power suitable for a welding application, and a drive circuit board supported by the insulative support and coupled to the power converter circuit to command operation of the power converter circuit during operation. - View Dependent Claims (17, 18, 19, 20)
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Specification