Basic ELECTRONICS
(2+1)ENGR MUHAMMAD SHAKEEL AKRAM
ELECTRONICS ENGINEERING FICT, BUITEMS.
3
CHAPTER 5
Transistor bias circuits
4
DC Operating Point (Q-Point) • Dc Bias
• Establishes the DC operating point (Q-point) for proper linear operation
• Otherwise will go in saturation or cutoff
5
DC Bias
6
DC Bias
Ic = β IB
VCE = Vcc – IC RC
7
DC load line
8
Voltage Divider Bias
• I2 >> IB (Stiff Voltage Divider)
Voltage Divider Bias
10
Top Related