COMPUTER MOTHERBOARD AND CPU VOLTAGE REGULATOR POWER SUPPLY LAYOUT METHOD
First Claim
1. A computer motherboard comprising a motherboard substrate defining a CPU loading area and a CPU voltage regulator power supply layout area, the power supply layout area being equally divided into a plurality of phase regions, and each of the phase regions having a plurality of spaced circuit layers, the circuit layers in the phase regions being symmetrical about a central axis of the CPU loading area, and a difference between each two simulating impedances between an impedance center of each of the phase regions and a loading center of the CPU loading area being within 1%.
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Accused Products
Abstract
A computer motherboard includes a motherboard substrate defining a CPU loading area and a CPU voltage regulator power supply layout area. The power supply layout area is equally divided into a number of phase regions, and each of the phase regions has a number of spaced circuit layers. The circuit layers in the phase regions are symmetrical about a central axis of the CPU loading area, and a difference between each two simulating impedances between an impedance center of each of the phase regions and a loading center of the CPU loading area is within 1%.
11 Citations
10 Claims
- 1. A computer motherboard comprising a motherboard substrate defining a CPU loading area and a CPU voltage regulator power supply layout area, the power supply layout area being equally divided into a plurality of phase regions, and each of the phase regions having a plurality of spaced circuit layers, the circuit layers in the phase regions being symmetrical about a central axis of the CPU loading area, and a difference between each two simulating impedances between an impedance center of each of the phase regions and a loading center of the CPU loading area being within 1%.
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8. A CPU voltage regulator power supply layout method, the power supply providing poly-phase electrical power, the method comprising:
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providing a motherboard substrate, the motherboard substrate defining a CPU loading area and a CPU voltage regulator power supply layout area; equally dividing the power supply layout area into a plurality of phase regions; forming a plurality of circuit layers on one of the phase regions, the circuit layers including at least a signal layer, a ground layer, and a power layer stacked in an order from a surface of each of the phase regions; forming the same circuit layers to the other phase regions, the circuit layers on the phase regions being symmetrical about a central axis of the CPU loading area; simulating impedances between an impedance center of each of the phase regions and a loading center of the CPU loading area to determine whether a difference between each of the two simulating impedances is within 1%; and forming an additional power layer in each of the phase regions if the difference between each of the two simulating impedances is beyond 1% until the difference between each of the two simulating impedances is within 1%. - View Dependent Claims (9, 10)
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Specification