circuit impedance वाक्य
उदाहरण वाक्य
मोबाइल
- A group of a transistor s parameters sufficient to predict circuit impedance are components in its small-signal model.
- One reason for this is that the circuit impedance may be too high to pop a circuit breaker quickly to prevent electricution.
- An alternative technique to determine the image impedance of port 1 is to measure the short-circuit impedance " Z"
- The input impedance is thus the same as the short circuit impedance of �N . Let us call that impedance Z _ { sc }.
- SC ( that is, the input impedance of port 1 when port 2 is short-circuited ) and the open-circuit impedance " Z"
- Transformer equivalent circuit impedance and transformer ratio parameters can be derived from the following tests : open-circuit test, short-circuit test, winding resistance test, and transformer ratio test.
- The image impedance can be expressed in terms of the open-circuit and short-circuit impedances of the filter as \ scriptstyle Z _ i = \ sqrt { Z _ oZ _ s }.
- The idea of Miller theorem ( modifying circuit impedances seen from the sides of the input and output sources ) is revealed below by comparing the two situations without and with connecting an additional voltage source V 2.
- The circuit impedance, seen from the side of the output source, may be defined similarly, if the voltages " V 1 " and " V 2 " are swapped and the coefficient " K " is replaced by 1 / " K"
- If a very high output impedance is required, operating in common base provides a solution, because it stops the negative feedback; e ) because common base interposes a ground between this notional feedback resistance and the input, the performance of the output circuit is less affected by changes in input circuit impedance-this is sometimes useful.
- Z-parameters are also known as " open-circuit impedance parameters " as they are calculated under open circuit conditions . i . e ., I x = 0, where x = 1, 2 refer to input and output currents flowing through the ports ( of a two-port network in this case ) respectively.
- So, Miller theorem expresses the fact that " "'connecting a second voltage source with proportional voltage V _ 2 = K { V _ 1 } in series with the input voltage source changes the effective voltage, the current and respectively, the circuit impedance seen from the side of the input source " " '.
- In this diagram, AC power is being transferred from the source, with phasor magnitude voltage | V _ \ mathrm { S } | ( peak voltage ) and fixed source impedance Z _ \ mathrm { S }, to a load with impedance Z _ \ mathrm { L }, resulting in a phasor magnitude current | I | . | I | is simply the source voltage divided by the total circuit impedance:
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