Method for adjusting width of transmission line
The invention provides a method for adjusting the width of a transmission line. The method comprises the steps of obtaining a layout of a printed circuit board, measuring the width W1 of the transmission line on the printed circuit board and obtaining the maximum voltage drop U2 allowed by the trans...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention provides a method for adjusting the width of a transmission line. The method comprises the steps of obtaining a layout of a printed circuit board, measuring the width W1 of the transmission line on the printed circuit board and obtaining the maximum voltage drop U2 allowed by the transmission line and a corresponding transmission line width W2, loading a current to the transmission line and measuring the voltage drop U1 on the transmission line, and when the measured voltage drop U1 is greater than the maximum voltage drop U2, calculating the width value, needing to be added, of the transmission line by use of a formula W2-W1=(1-U2/U1)*(I*rho*L)/(H*U2) and widening the transmission line according to the width value needing to be added; in the formula, I refers to the magnitude of the current, rho refers to the electrical conductivity and L refers to the length of the transmission line. |
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