Consider the BJT circuit in Figure 6. Assume that the following values remain constant during the operating conditions, B = 100 and VBE = 0.65V, (a) Determine whether the transistor is operating under cut-off, linear or saturation condition if base current is increased to 1.0 mA. Assume VCE(sat) = 0.3V.
Consider the BJT circuit in Figure 6. Assume that the following values remain constant during
the operating conditions, B = 100 and VBE = 0.65V,
(a) Determine whether the transistor is operating under cut-off, linear or saturation condition if base current is increased to 1.0 mA. Assume VCE(sat) = 0.3V.
(b) If a PZT3904 transistor is used and the circuit is operating at the temperature of 100 C o .
Referring to the data sheet in Appendix 1 and the circuit operating with the base current and VCE(sat) as in part (a),
i. Determine the power rating of the transistor at the given operating temperature.
ii. Determine the maximum value to which VCC can be adjusted without exceeding a rating.
Which rating would be exceeded first?
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