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US 8,283,807 B2Granted
High voltage power supply
OwnerChul-woo Ohinventor
Life of this patent
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Abstract
A high voltage power supply (HVPS) including first and second high voltage output controllers controlling output of a high voltage output signal; and a plurality of transformers transforming an output signal provided from the first and second high voltage output controller, disposed outside of the first and second high voltage controllers on the substrate, wherein output terminals in the secondary sides of the plurality of transformers are disposed along the edge of the substrate. Therefore, the volume of a system can be minimized by arranging circuits in each component for high voltage output in parallel, and spark and discharge can be reduced by minimizing interference between the primary sides and the secondary sides of the components for high voltage output, thereby preventing damage to a product.
Claims28
A high voltage power supply (HVPS) comprising:
- a substrate;
- a first high voltage output controller disposed on a first section of the substrate to control first high voltage output signals;
- a second high voltage output controller disposed on a second section of the substrate to control second high voltage output signals;
- a first plurality of transformers disposed on the first section of the substrate to transform the first output signals;
- a second plurality of transformers disposed on the second section of the substrate to transform the second output signals;
- first output terminals connected to the secondary sides of the first plurality of transformers and arranged along a first edge of the substrate;
- and
- second output terminals connected to the secondary sides of the second plurality of transformers and arranged along a second edge of the substrate,
- wherein the first plurality of transformers are disposed on the substrate closer to the first output terminals than the second output terminals, and the second plurality of transformers are disposed on the substrate closer to the second output terminals than the first output terminals.
6 more elements
A high voltage power supply (HVPS) comprising:
- a substrate;
- a first high voltage output controller to control first high voltage output signals;
- a second high voltage output controller to control second high voltage output signals;
- a first plurality of transformers to receive the first high voltage output signals through input terminals of primary side of the first plurality of transformers and to transform the first high voltage output signals;
- a second plurality of transformers to receive the second high voltage output signals through input terminals of primary side of the second plurality of transformers and to transform the second high voltage output signals;
- first output terminals disposed to be arranged along a first edge of the substrate, and corresponding and connected to output terminals of secondary side of the first plurality of transformers;
- and
- second output terminals disposed to be arranged along a second edge located opposite to the first edge of the substrate, and corresponding and connected to output terminals of secondary side of the second plurality of transformers,
- wherein the first high voltage output controller, the second high voltage output controller, the first output terminals and the second output terminals are arranged on the substrate such that the input signal lines to be input to the first high voltage output controller and the second high voltage output controller do not pass adjacent to the first output terminals and the second output terminals.
6 more elements
An image forming apparatus comprising:
- an image forming unit to form an image onto a printable medium;
- and
- a high voltage power supply (HVPS) to supply power to the image forming unit, the HVPS comprising:
- a substrate;
- a first high voltage output controller disposed on a first section of the substrate to control first high voltage output signals;
- a second high voltage output controller disposed on a second section of the substrate to control second high voltage output signals;
- a first plurality of transformers disposed on the first section of the substrate to transform the first output signals;
- a second plurality of transformers disposed on the second section of the substrate to transform the second output signals;
- first output terminals connected to the secondary sides of the first plurality of transformers and arranged along a first edge of the substrate;
- and
- second output terminals connected to the secondary sides of the second plurality of transformers and arranged along a second edge of the substrate,
- wherein the first plurality of transformers are disposed on the substrate closer to the first output terminals than the second output terminals, and the second plurality of transformers are disposed on the substrate closer to the second output terminals than the first output terminals.
9 more elements
A image forming apparatus comprising:
- an image forming unit to form an image onto a printable medium;
- and
- a high voltage power supply (HVPS) to supply power to the image forming unit, the HVPS comprising:
- a substrate;
- a first high voltage output controller to control first high voltage output signals;
- a second high voltage output controller to control second high voltage output signals;
- a first plurality of transformers to receive the first high voltage output signals through input terminals of primary side of the first plurality of transformers and to transform the first high voltage output signals;
- a second plurality of transformers to receive the second high voltage output signals through input terminals of primary side of the second plurality of transformers and to transform the second high voltage output signals;
- first output terminals disposed to be arranged along a first edge of the substrate, and connected to output terminals of secondary side of the plurality of first transformers;
- and
- second output terminals disposed to be arranged along a second edge located opposite to the first edge of the substrate, and connected to output terminals of secondary side of the plurality of second transformers,
- wherein the first high voltage output controller, the second high voltage output controller, the first output terminals and the second output terminals are arranged on the substrate such that the input signal lines to be input to the first high voltage output controller and the second high voltage output controller do not pass adjacent to the first output terminals and the second output terminals.
9 more elements
Dependencies are inferred from the claim text.