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Printed circuit board

A printed circuit board, circuit board technology, applied in the direction of printed circuit, printed circuit, printed circuit components, etc., can solve the problems of CPU102 unstable work, crash, low input voltage, etc.

Inactive Publication Date: 2013-10-30
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the CPU 102 loads quickly, because the VRM 100 cannot respond in time, the input voltage of the

Method used

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Embodiment Construction

[0013] see figure 2 , a preferred embodiment of the present invention provides a printed circuit board 300 , including a voltage regulator module (Voltage Regulator Module, VRM) 31 and a board body 33 .

[0014] The VRM31 is arranged on the board body 33 for multiple loads, such as the first load, namely the Dual-Inline-Memory-Modules (DIMM) slot 35 and the second load, namely the central A processor (Central Processing Unit, CPU) 37 provides power. One side of the DIMM slot 35 is provided with a decoupling circuit 39 . The DIMM slot 35 is always connected to the decoupling circuit 39 .

[0015] In this embodiment, the board body 33 is an eight-layer circuit board, including the first layer S1, the second layer S2, the third layer S3, the fourth layer S4, the fifth layer S5, the sixth layer S6, the seventh layer S7 and the eighth layer S8. Wherein, the first layer S1 is provided with a VRM 31 , a DIMM slot 35 and a CPU 37 , and the three are electrically isolated from eac...

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Abstract

The invention provides a printed circuit board which comprises voltage adjusting modules and a board body. The voltage adjusting modules are used for supplying electricity for first loads and second loads. A decoupling circuit is arranged at one side of each first load. Each first load is connected to one decoupling circuit. The board body comprises multiple layers of circuit board bodies which are sequentially arranged in a stacked mode. One voltage adjusting module, one first load and one second load are arranged on one circuit board body, the voltage adjusting module and the first load are mutually connected and respectively and electrically isolated from the second load. The remaining two circuit board bodies are respectively provided with one voltage adjusting module, one first load and one second load, each first load is connected with one second load, and the first loads and the second loads are respectively isolated from the voltage adjusting modules. According to the printed circuit board, each decoupling circuit is shared by one first load and one second load, so that the manufacturing cost of the printed circuit board is effectively reduced, and the electricity supply stability of the voltage adjusting modules is improved.

Description

technical field [0001] The invention relates to a printed circuit board. Background technique [0002] In the voltage regulator module (Voltage Regulator Module, VRM), when the loading frequency of the load is greater than the switching frequency of the VRM itself, the VRM cannot respond to the voltage demand at the load end in time. Therefore, a corresponding decoupling circuit usually needs to be provided between the VRM and the load terminal to ensure a stable voltage supply at the load terminal. [0003] see figure 1 , an existing VRM 100 is disposed on a printed circuit board 200 . The VRM 100 is respectively used as multiple loads, such as a first load, that is, a Dual-Inline-Memory-Modules (DIMM) slot 101 and a second load, that is, a central processing unit (Central Processing Unit, CPU) 102 for power supply. One side of the DIMM slot 101 is provided with a decoupling circuit 103 , and the DIMM slot 101 is always connected to the decoupling circuit 103 . The pri...

Claims

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Application Information

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IPC IPC(8): H05K1/02
CPCH05K1/00H02J1/00G06F1/26H05K1/0262H05K2201/10159
Inventor 罗世飘白家南许寿国
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD