electonics, why we are using h-parameter

electonics

why we are using h-parameter

Re: electonics

srinivas.nrt said:

why we are using h-parameter

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since z pararameter not consistant

Re: electonics

sundarmeenakshi said:

srinivas.nrt said:

why we are using h-parameter

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since z pararameter not consistant

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Can u explain in what way z parameters are not consistent

Re: electonics

There are devices such as transistors which are current driven voltage devices. For example in a transistor in CE mode the input signal is the base current and the output signal is the collector current or the collector to emitter voltage. The basic difference that a transistor has from a resistor or a capacitor is that it is not fully bilateral. What I mean to say is that the device cannot be applied with the reverse way for the same application. Also the devices have internal feedback so that the output changes the input. Now for transostor the output is voltage which changes the input current and also the input changes the output. The nature of the input and the output are such that it is required to define parameters so as to be able to define the effect of the input on the output and vice versa. So h paameters are most suitable for transistors. But for FET devices you will hardly see any h parameter analysis.