Power source circuit for circuit board blind hole electroplating

A power supply circuit and circuit board technology, which is applied in the direction of irreversible AC power input conversion to DC power output, etc., can solve problems such as uneven plating surface, and achieve the effect of smooth plating surface, increased copper ion concentration, and improved distribution

Inactive Publication Date: 2013-03-27
DONGGUAN WERY DOOD CIRCUIT BOARD EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is that the power supply circuit of the electroplated blind hole of the existing circuit board causes the electroplating surface to be uneven

Method used

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  • Power source circuit for circuit board blind hole electroplating
  • Power source circuit for circuit board blind hole electroplating

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Embodiment Construction

[0010] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. 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.

[0011] The embodiment of the present invention discloses a power supply circuit for electroplating blind holes on a circuit board, please refer to figure 1 , the power supply circuit 1 includes a transformer 2, a rectifier diode 3, an inductor 4 and a freewheeling diode 5, the first output terminal 20 of the transformer 2 is connected to the anode 30 of the rectifier diode 3, and the second output terminal 20 of the transformer 2 The output terminal 22 is connected to the negative pole of the power supply circuit 1, ...

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Abstract

The invention provides a power source circuit for circuit board blind hole electroplating. The power source circuit comprises a transformer, a rectifying diode, an inductor and a follow-current diode, a first output end of the transformer is connected with an anode of the rectifying diode, a second output end of the transformer is connected with a negative electrode of the power source circuit, a first end of the inductor is connected with a cathode of the rectifying diode, a second end of the inductor is connected with a positive electrode of the power source circuit, a cathode of the follow-current diode is serially connected with the first end of the inductor after being connected with the cathode of the rectifying diode in parallel, and an anode of the follow-current diode is serially connected with the negative electrode of the power source circuit after being connected with the second output end of the transformer in parallel. By the power source circuit without a capacitor for circuit board blind hole electroplating, copper distribution is improved, flatter electroplated sides are obtained and good performances of circuit boards are achieved.

Description

technical field [0001] The invention relates to a power supply circuit for electroplating blind holes of circuit boards. Background technique [0002] In an existing power supply circuit for electroplating blind holes on circuit boards, capacitors are connected in the rectifier used, and the waveform of its output voltage is a continuous waveform with smooth fluctuation peaks, and the output current is used to electroplate blind holes When the plating surface is uneven, it will affect the quality of the circuit board. Contents of the invention [0003] The technical problem mainly solved by the invention is that the electroplating surface is uneven due to the power supply circuit of the electroplating blind hole of the existing circuit board. [0004] In order to solve the above technical problems, the embodiment of the present invention discloses a power supply circuit for electroplating blind holes on a circuit board. The power supply circuit includes a transformer, a r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/06
Inventor 杨毅郑国胜蔡志浩
Owner DONGGUAN WERY DOOD CIRCUIT BOARD EQUIP
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