Welcome to this path on simple electric know-how. Engineering scholars of virtually alldisciplines has to suffer this path (name should be a bit of diversified in numerous coursecurriculum) as a middle topic within the first semester. it truly is useless to say that how a lot we're depending on electrical energy in our day after day lifestyles.
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Thus, source 1 is closer to the ideal source. More specifically, if the source internal resistance Rs ≥ 100 RL then source acts nearly as an ideal current source. 3 Conversion of a Practical Voltage Source to a Practical Current source and vise-versa • Voltage Source to Current Source For the practical voltage source in fig. 3) IL = Rs + RL Note that the maximum current delivered by the source when RL = 0 (under shortV circuit condition) is given by I max = I s = s . 4). Note: A practical voltage source with a voltage Vs and an internal source resistance V Rs can be replaced by an equivalent practical current source with a current I s = s Rs and a source internal resistance Rs (see fig.
8 Rs → solving these equations we get, Vs = 60 V & Rs = 25 Ω . 17. An ideal current source, which is represented by a model in fig. , independent of the voltage across its terminals across the terminals). Version 2 EE IIT, Kharagpur It can be noted from model of the current source that the current flowing from the source to the load is always constant for any load resistance (see fig. e. whether RL is small ( VL is small) or RL is large ( VL is large). The vertical dashed line in fig. 18 represents the V − I characteristic of ideal current source.
Both voltage and current types of sources may be dependent, and either may be controlled by a voltage or a current. In general, )-shaped symbol as not to confuse dependent source is represented by a diamond ( it with an independent source. 21. These are listed below: (i) Voltage-controlled voltage source (VCVS) (ii) Current-controlled voltage source (ICVS) (iii) Voltage-controlled current source(VCIS) (iv) Current-controlled current source(ICIS) Note: When the value of the source (either voltage or current) is controlled by a voltage ( vx ) somewhere else in the circuit, the source is said to be voltage-controlled Version 2 EE IIT, Kharagpur source.
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