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Power converter, control method thereof, and USB PD charger

A technology of a power converter and a control method, which is applied to current collectors, battery circuit devices, output power conversion devices, etc.

Active Publication Date: 2022-01-04
HYPOWER MICROELECTRONICS (WUXI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in addition to the above-mentioned protections, the PD controller cannot provide additional protection functions for the AC / DC (Alternating Current / Direct Current) controller on the primary side

Method used

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  • Power converter, control method thereof, and USB PD charger
  • Power converter, control method thereof, and USB PD charger
  • Power converter, control method thereof, and USB PD charger

Examples

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Embodiment Construction

[0015] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. Embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of means consistent with aspects of the invention as recited in the appended claims.

[0016] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention shall have the usual meanings understood by those skilled in the field of the present invention. "First", "second" and similar wo...

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PUM

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Abstract

The embodiment of the invention provides a power converter, a control method thereof and a USB PD charger. The power converter comprises a primary side and a secondary side connected by a transformer winding, the primary side comprises a primary side controller, the secondary side comprises a secondary side controller and a load switch, the primary side is connected to a power source, the secondary side is connected to a load by the load switch, a secondary side controller is used for controlling a load switch to control whether to supply power to a load, the primary side controller has a feedback pin, the secondary side controller is coupled to the feedback pin of the primary side controller through a feedback element, and the secondary side controller has a control pin connected to an input of the feedback element. When the secondary side controller monitors that the abnormity occurs, the control pin of the secondary side controller sends out the control signal, and the control signal is sent to the feedback pin of the primary side controller through the feedback element to control the primary side controller to stop working, so that an additional protection function can be provided for the primary side controller.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of power conversion, and in particular, to a power converter, a control method thereof, and a USB PD charger. Background technique [0002] Today, USB (Universal Serial Bus, Universal Serial Bus) is the main power provider for electronic devices. Many of today's devices are charged or powered by USB ports in laptops, workstations, docking stations, monitors, cars, airplanes, and even wall outlets. USB has become the ubiquitous power outlet for many small devices such as cell phones, tablets, portable speakers and other handheld devices. [0003] International regulations require better energy management to meet safety and efficiency requirements. The USB PD (Universal Serial Bus Power Delivery) specification is widely adopted as a power delivery protocol, especially for fast charging designs, by providing more flexible power delivery and data on a single cable Maximum functionality o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/217H02H7/125H02J7/00
CPCH02M7/217H02H7/1252H02H7/1255H02J7/0029H02J7/00304H02J7/00308H02J2207/20
Inventor 朱宁
Owner HYPOWER MICROELECTRONICS (WUXI) CO LTD