Assume that the thermal resistance cs of the insulating pad between the transistor's case and the heatsink is 0. If the answer to the previous part is "yes," find the maximum thermal resistance s (in ☌/W) of the required heatsink before applying a safety factor (i.e., extra capacity to handle unexpected operating conditions). This implies that the operating temperature of the transistor is determined by its time-average power dissipation. Note that the thermal time constant of the transistor is much longer than the period of a 60 Hz AC waveform. the higher the input voltage, the hotter the 2N3055 transistors will run). determine whether or not the transistor should be mounted on a heatsink if it is to be operated at ambient temperatures up to 50 ☌. The following circuit is an 8-amp, 13.8-volt power supply using the parts you. 1 Using the 2N3055 datasheet (available on the Laboratory page at the course web site), a. ![]() Recall that average power dissipated by the pass transistor was found in Prob. It is packaged in a TO-3 type case, which is well suited for mounting on a heat sink. Suppose that a type 2N3055 npn BJT will be used as the pass transistor. To begin with, An electrical current flows through the resistor-R1 to limits current to the Zener diode. Transcribed image text: Depicted below is the linear voltage regulator that was considered in Prob. 12V 1A linear voltage regulator using 2n3055 transistor and Zener diode.
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