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Results tagged with ltspice
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user 134093
Anything related to LTspice. LTspice is a SPICE simulation, schematic capture, and waveform viewer program from Linear Technology. LTspice is freeware with a very liberal license, it is lightweight, and isn't crippled in any way.
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Basic Capacitor Question To help Cement My Foundation Properly (LTSpice)
After a bit of research, the thing that helped me most in "closure" on this question is the superposition theorem. This is the theorem in electronics that allows one to analyze the contributions of e …
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3
answers
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Art Of Electronics - Center Tapped Transformer Efficiency and Current Question, LTSpice Ques...
I was trying to use ltspice to see current and voltage to get a sense of why it is less efficient, but didn't see that?
In this LTspice sim, i did not show the transformer that looks to be 1 - 1 . …
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Why does this implemented Hartley oscillator's amplitude vary significantly?
I have since figured out what was wrong. The emitter resistor needed to be lower. When I lowered it from 1500 to 100 Ohms, the output became perfect.
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2
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189
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Basic Capacitor Question To help Cement My Foundation Properly (LTSpice)
In ltspice, i look at the voltage between v1 and r3, it is at a constant 10 volts. I would think it should show a rise to volts? … In ltspice, i look at the voltage between r3 and c1 and it appeats to have a sinusoidal signal on it on 10 volts varion +- 15 millivolts. …
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4
answers
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Why does this implemented Hartley oscillator's amplitude vary significantly?
I have implemented the below Hartley oscillator in LTspice for analysis before implementation. Later, it was implemented on a circuit board. … I see it oscillating in LTspice at the calculated frequency of where it should be, 1/2·π·sqrt(LC).
On a circuit board, I see it oscillating at about 40 kHz higher, I recall it being 578 kHz or so. …
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1
answer
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What is this binocular transformer and how do I model it in LTSPice, Have High SWR In Ham Radio
I wish to model this transformer in LTSpice. In LTSpice I can set up 3 inductors and use a K statement to link them. … At first, I'd like to see this modelled in LTSPice and then test things there.
Thanks …
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Test Input Transformer with Signal Generator
Ideally, I can gather enough information to model this in LTSPice. What this transformer is doing and its impedance is key. … Can I send my signal generator input into this transformer and get a useful measurement/learn something for ltspice? Any other advice? Thanks …
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2
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Help with the error K2_A2 Coupling to shorted-out inductor L5 and looking for pointers for b...
The main issue all this comes from is fixing the swr my radio complains about as well as understanding ltspice simulation/limitations. … Just wondering how good ltspice really is for hf modelling/experimenting.
Below is my ltspice model of the schmadic as well as a graph of impediance at frequencies. …
3
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2
answers
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BJT Voltage Divider Bias Circuit Theoretical/Ideal Model Help ..LTSPICE?
I wish to get at exact currents and voltages but cannot match to ltspice or even the sim below. I wish to look at things theoritical and ignore any time or heat dependent ramp up time. … I wish to know what get at currents and voltages and why there is no match to LTSPice (or below)? Thanks,Jeff …