Impedance characteristics of the transmission line
Batteries from the point of view, once the battery design engineers will even lead to the front of transmission lines, a regular on the total value of the current outflow from the laptop battery, and to maintain the stability of the same voltage signal. Some people may ask, what kind of electronic components with such actions » Constant joined the same voltage signal will remain constant at the current value of the same, of course, is resistance.
And the battery, signal transmission lines along the forward spread, every 10 ps time interval, 0.06 inches of new transmission lines be charged to 1 V, from the inspiron battery to increase access to the new charge from the battery to ensure the maintenance of a stable Current from the batteries absorb constant current, equivalent to the transmission line on a resistance, and resistance constant. We call it the surge impedance transmission lines.
Similarly, when the signal transmission lines along the forward spread, each spread a certain distance, the signal will continue to gauge the signal lines, the environment and trying to determine when the signal further spread of resistance. Once the signal has been added to transmission lines and transmission lines along the forward spread, the signal itself has been little need to examine in the end to the current charging 10 ps time interval by Latitude D500 battery the spread of the length of the transmission line and keep this part of the transmission line charge to 1 V. This is our moment to the analysis of the impedance value.
From the perspective of the battery itself, if the signal to the constant speed of transmission lines along the direction of transmission and transmission line with the assumption that the same cross-section, then spread each signal a fixed length (for example, at intervals of 10 ps signal transmission distance), then it will need to From the battery in the same amount of access charge to ensure that this section of transmission lines to charge the same signal voltage. Each transmission signal a fixed distance from the Latitude D600 battery will be the same access to current and voltage signal to maintain consistency in the process of signal transmission, transmission lines throughout the impedance of the moment are the same.
Signal transmission lines along the transmission process, if the transmission lines is consistent throughout the signal transmission speed and length of units on the same capacitor, then the signal transmission in are always see exactly the same moment impedance. As in the entire transmission line impedance of constant change, we are given a specific name, to express specific characteristics of such transmission Latitude D800 battery lines or characteristics, as the characteristics of the transmission line impedance. Characteristic impedance signal is transmitted along the transmission line, the signal that the moment impedance value. If the signal is transmitted along the transmission line in the process, at any time to see the signal characteristics of resistance remained the same, then the transmission line is called controlled impedance of the transmission line