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Power converter controller with multiple power sources

A technology of power converters and controllers, which is applied in the direction of output power conversion devices, conversion of DC power input to DC power output, and conversion equipment with intermediate conversion to AC, which can solve the problem of overall efficiency reduction and excessive power of power converters. Dissipation and other issues

Active Publication Date: 2014-07-23
POWER INTEGRATIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using power supply circuit components of the power converter that are larger than the required voltage level can lead to excessive power dissipation in the power converter and a reduction in overall efficiency

Method used

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  • Power converter controller with multiple power sources
  • Power converter controller with multiple power sources
  • Power converter controller with multiple power sources

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Embodiment Construction

[0043] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that the specific details need not be employed to practice the present invention. In other instances, well-known materials or methods have not been described in detail in order not to obscure the present invention.

[0044] Reference throughout this specification to "one embodiment," "an embodiment," "an example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present specification. In at least one embodiment of the invention. Thus, appearances of the phrases "in one embodiment," "in an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the p...

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PUM

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Abstract

A controller includes a bypass terminal, a first power circuit, a second power circuit, and a charging control circuit. The bypass terminal is to be coupled to a bypass capacitor coupled to a secondary side of an isolated power converter. The first power circuit is coupled to the bypass terminal and a first terminal to be coupled to a first node of the secondary side. The first power circuit transfers charge from the first terminal to the bypass terminal for storage on the bypass capacitor. The second power circuit is coupled to the bypass terminal and a second terminal to be coupled to a second node of the secondary side. The second power circuit transfers charge from the second terminal to the bypass terminal for storage on the bypass capacitor. The charging control circuit controls which of the first and second power circuits transfers charge to the bypass terminal.

Description

technical field [0001] The present disclosure relates to power converters, and more particularly, to control circuits for isolated power converters. Background technique [0002] A switch mode power converter is widely used in household appliances and industrial appliances to convert a low frequency (eg, 50Hz or 60Hz) high voltage alternating current (ac) input voltage into a required level of direct current (dc )The output voltage. For example, switch mode power converters may be included in commonly used electronic devices such as battery chargers for mobile electronic devices. Switch-mode power converters of various types are popular because of their well regulated output, high efficiency and small size, as well as their safety and protection features. Popular topologies for switch mode power converters include: flyback, forward, push-pull and full bridge and many others including resonant Topology. [0003] A challenge in the market for switch mode power converters i...

Claims

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Application Information

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IPC IPC(8): H02M3/28H02M3/335H02M1/00
CPCH02M3/33523H02M3/33592Y02B70/10H02M1/0006H02M3/33515
Inventor A·B·詹格里安S·刘L·伦德
Owner POWER INTEGRATIONS INC
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