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| This trainer is a variable voltage power supply. A linear IC used in this power supply as control voltage regulator to a series pass transistor 2N3055. This liner voltage regulator alone can not provide required current to a normal lab circuit. Hence a series pass transistor 2N3055 is provided to boost the current handling capabilities. The linear IC used provides necessary control signals for this series pass transistor, namely error amplifier, voltage reference, current sense to this driver. Therefore the linear IC is used in this trainer as a control circuit than power circuit. Several test points are provided for making measurements. The output of this power supply can be varied in the range of 1.2 to 15V DC, with a maximum current of 1A. |
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