Title:Re: LTSpice Beginner Question:BJT+OPAmp Post by:mawyattonJune 20, 2024, 04:47:18 pm Add a shunt to ground load resistor (100K) as the transistor has no place for its emitter current to go unless a load it attached, then see if the voltage make sense. ...
Hi, the circuit misses on: - a gnd node as reference for LTspice ... LTSpice doesn´t like floating circuits - misses on a load (connected to gnd) - misses on a resistor from the OPAmps In+ to gnd as a dc-input-bias-path regards Calvin...
Have you tried simulating it on LTSpice? YES. I have tried this. It indeed will be over the rating value. Like Reply N Thread Starter Nick Long Joined May 12, 2020 75 Oct 6, 2020 #12 This circuit is from the paper entitled "A Novel Self-Power SSHI Circuit for Piezoelec...
. Then use LTspice software to simulate the amplifier in order to measure the frequency response, and get the Bode diagram of the common-emitter andcommon-collectoramplifier circuit. Finally, study the frequency response of the BJT transistor amplifier from 10 Hz to 300GH. 1.Introduction The ...
The transistor really is the most interesting part of this circuit. We often use BJTs in “on or off” applications, and it’s important to recognize that the situation in this circuit is completely different. The op-amp (with the help of negative feedback, of course) is ac...
The goal of this activity is to study the bipolar junction transistor (BJT) current source or current mirror. Important attributes for current sources include high output resistance with a wide range of voltage compliance and rejection of external variat
1/F AM and PM noise in bipolar transistor amplifiers: Sources, ways of influence, techniques of reduction Basing on hybrid pi BJT model with fluctuating recombination conductance an approach to AM and PM noise calculations in BJT amplifier was developed. An ......
Its not solvable without knowing the characteristics of the transistor. Here's a LTspice SIM that gives a different Vb for each of generic NPN (SPICE default), 2N3904 and 2N3055. Title:Re: Having problem with finding BJT Vbase Post by:negativefeedbackonApril 09, 2020, 01:10:58 pm ...