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Device utilizing single-stage PFC+DC-DC synchronous voltage reduction for inductance leakage detection

A technology of synchronous step-down and leak detection, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problem of failure to reflect performance, no side leakage inductance detector, and inability to effectively detect PFC+DC-DC synchronous drop-off In order to achieve the effects of safe and convenient use, control output accuracy, and small fluctuation range of output voltage

Active Publication Date: 2017-06-27
HUIZHOU SANHUA IND
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Problems solved by technology

[0004] The purpose of the present invention is to provide a device for measuring leakage inductance using single-stage PFC+DC-DC synchronous step-down, to solve the problem in the above-mentioned background technology that there is no side leakage inductance detector, and PFC+DC-DC cannot be effectively detected. The sensing ability of the synchronous buck controller cannot reflect the strict and efficient performance of the device

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  • Device utilizing single-stage PFC+DC-DC synchronous voltage reduction for inductance leakage detection
  • Device utilizing single-stage PFC+DC-DC synchronous voltage reduction for inductance leakage detection

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] see figure 1 and figure 2 , the present invention provides a technical solution: a device for measuring leakage inductance using single-stage PFC+DC-DC synchronous step-down, including a device main body 1 and a built-in control panel 12, and an LED brightness adjustment lamp 4 is arranged on the upper end of the device main body 1 , and the upper end of the device main body 1 is provided with an LED brightness adjustment switch 2 at a position close ...

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Abstract

The invention discloses a device utilizing single-stage PFC+DC-DC synchronous voltage reduction for inductance leakage detection. The device comprises a device body and a built-in control panel, wherein an upper end of the device body is provided with an LED brightness adjusting lamp, the position on the upper end of the device body close to one side of the LED brightness adjusting lamp is provided with an LED brightness adjusting switch, one side of the device body is provided with a wiring port, a front surface of the device body is provided with a signal prompting lamp in an embedded mode, and one side of the signal prompting lamp is provided with a display. The device is advantaged in that the structure is scientific and reasonable, the device is safe and convenient to use, an inductance leakage detector is arranged, inductance capability of a PFC+DC-DC synchronous voltage reduction controller can be effectively detected, rigorous and efficient performance of the device is realized, characteristics of work process similarities of a PFC correction circuit and a BUCK circuit are fully utilized, two converters are merged into one converter, a DC-DC converter employs a fixed frequency mode, a feedback-less output voltage fluctuation range is small, and output precision control is realized.

Description

technical field [0001] The invention belongs to the technical field of devices for measuring leakage inductance by using single-stage PFC+DC-DC synchronous step-down, and in particular relates to a device for measuring leakage inductance by using single-stage PFC+DC-DC synchronous step-down. Background technique [0002] Development and application of unipolar PFC+DC-DC synchronous step-down scheme in industrial control field and lighting field power supply products. At present, in industrial control systems, it is usually necessary to use AC and battery interactively. The traditional method is PFC+BUCK+DC-DC. PFC realizes power factor correction, and BUCK line provides battery charging and DC-DC input voltage. DC-DC uses each power management chip to correspond to each output mode to ensure high precision requirements. The outstanding disadvantages of the traditional solution are: the battery charging circuit does not require high precision, and the PFC+BUCK circuit is use...

Claims

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Application Information

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IPC IPC(8): G01R31/02
CPCG01R31/50
Inventor 张成顺徐风平孙建平刘圣东
Owner HUIZHOU SANHUA IND
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