555 transistor characteristic curve tracer circuit diagram


Posted on Mar 28, 2007

As shown in Figure 555 is the transistor characteristic curve tracer circuit depict transistor characteristics, to have two voltages, one step wave is applied b pole for genera


555 transistor characteristic curve tracer circuit diagram
Click here to download the full size of the above Circuit.

ting different Ib, the second is on the sawtooth c pole, its period staircase corresponds to depict Ic-Vcc characteristic curve. As illustrated, 555 and R1, R2, C1 composition astable multivibrator, the oscillation frequency f 1.44 (R1 + 2R2) C1. Illustration parameter f 1100Hz. C2, R3 composed of the integrating circuit for generating a ramp, through VT4 emitter follower output, added to the oscilloscope vertical Y and enter the test tube c pole. C3, D1, VT1 ~ VT3, C4 and other components ladder wave generator, every five oscillation cycles, charging voltage on C4 to make VT3 conduction, C4 discharge, formed five steps. C4 on a single charge, VT2 emitter voltage drops that form a step. Step wave through R4 is added to the test tube b pole. The test tube is figure VTx. After the oscilloscope connected to an IV characteristic curve shown in Figure b.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Logic Tester
Dimmer circuit
Mains Supply Failure Alarm
lm1596 single sideband ssb suppressed carrier demodulator
Descrete Multistage Light Sequencer
15dB UHF Antenna Preamp Circuit
multivibrator astable
How to test a triac
Ten Road temperature itinerant detecting circuit 555 CD4069 CH208
100Hz-1MHz a circuit diagram of the phase meter
2Y- connection two-speed motor contactor control one circuit



Top