emitter voltage การใช้

• The common emitter voltage follows this change and goes down thus making Q1 conduct more.
• Here, the base emitter voltage drop is assumed to be 0.65 Volts.
• BE refers to base-emitter voltage.
• That drop is equal to the collector-to-emitter voltage of a saturated transistor.
• As a result, the common emitter voltage and Q1 collector voltage follow the input voltage.
• In this case, the common emitter voltage and Q1 collector voltage are not suitable for outputs.
• CB ( as described in base-width modulation ) instead of the collector emitter voltage " V"
• Its collector current reduces; as a result, the shared emitter voltage lowers slightly and Q1 collector voltage rises significantly.
• The base resistor R B is obligatory to prevent the impact of the input voltage through Q1 base-emitter junction on the emitter voltage.
• Where bipolar junction transistors are used, the bias network must compensate for the negative temperature coefficient of the transistors'base to emitter voltage.
• The collector emitter voltage of Q1 is higher by the base-emitter voltage of Q3 and therefore is about twice the value across Q2.
• The collector emitter voltage of Q1 is higher by the base-emitter voltage of Q3 and therefore is about twice the value across Q2.
• "At common mode, the emitter voltage follows the input voltage variations; there is a full negative feedback and the gain is minimum.
• Emitter voltage " v E " already is known in terms of " i B " from the diagram of Figure 7.
• The output is inverted since the collector-emitter voltage of transistor Q 1 is taken as output, and is high when the inputs are low.
• Except at low collector-emitter voltages, the secondary breakdown limit restricts the collector current more than the steady-state power dissipation of the device.
• The base-emitter voltages, \ scriptstyle V _ { BE }, are typically between 0.5 and 0.75 volts so some authors
• The minimum output voltage of the Wilson current mirror must exceed the base emitter voltage of Q2 by enough that Q3 will operate in active mode rather than saturation.
• In this configuration, the output voltage is equal to the dynamic threshold ( the shared emitter voltage ) and both the output levels stay away from the supply rails.
• However, a larger I e increases the emitter voltage V e = I e R e, which in turn reduces the voltage V Rb across the base resistor.