Headphone amp simulation

Started by garyr in sci.electronics.design9 years ago 75 replies

I tried to create an LTspice simulation of Jim Thompson's headphone amp (5/21/14 5:16 PM post). I got the supertex models from supertex.com and...

I tried to create an LTspice simulation of Jim Thompson's headphone amp (5/21/14 5:16 PM post). I got the supertex models from supertex.com and the TL082 model from TI. When run it produces the error message: Fatal Error: Port(pin) count mismatch between the definition of subcircuit "tl082" and instance: "xu2" The instance has more connection terminals than the definition. What have I g...


RIsense Value for Basso's PWM-CM Model

Started by Anand P. Paralkar in sci.electronics.design8 years ago

Hello, I am trying to simulate a buck and a boost converter using Christophe Basso's generic PWM models (in LTSpice) for voltage mode...

Hello, I am trying to simulate a buck and a boost converter using Christophe Basso's generic PWM models (in LTSpice) for voltage mode controlled and current mode controlled switched mode power supplies. These models have an integrated PWM generator and power switch. These models can be found here: http://cbasso.pagesperso-orange.fr/Downloads/IsSpice/Final%20models.zip (alternati...


LTSpice resistive divider

Started by Piotr Wyderski in sci.electronics.design4 months ago 14 replies

Hi, what has recently happened to my Spice? Below is a simple resistor divider and this is the R2...

Hi, what has recently happened to my Spice? Below is a simple resistor divider and this is the R2 voltage: https://i.postimg.cc/SxPYBV2c/spice.png Switching between solvers doesn't make any difference. Best regards, Piotr Version 4 SHEET 1 880 680 WIRE 208 32 96 32 WIRE 368 32 288 32 WIRE 368 48 368 32 WIRE 96 80 96 32 WIRE 96 176 96 160 WIRE 368 176 368 128 FLAG 96 176 0...


Short Circuit Protected Constant Current Supply

Started by Arnie Dwyer (ex Jan Frank) in sci.electronics.design11 months ago 12 replies

Here are the documents for a short-circuit protected constant current supply for making silver ions and other uses. The current can be adjusted...

Here are the documents for a short-circuit protected constant current supply for making silver ions and other uses. The current can be adjusted from 100uA to 20mA. The compliance range is 320V. The polarity swap is on a separate pcb not shown here. The zip contains the LTspice ASC and PLT files, and the Diptrace schematic and pcb files. The pcb is hand wired for the moment, so the n...


Defect in Analog Devices Spice model for the AD734

Started by Bill Sloman in sci.electronics.design7 years ago 35 replies

I've been using the Analog Devices Spice model in LTSpice to model the AD734 running with a current output - see Figure 25 on page 13 of the Rev...

I've been using the Analog Devices Spice model in LTSpice to model the AD734 running with a current output - see Figure 25 on page 13 of the Rev E AD734 data sheet http://www.analog.com/media/en/technical-documentation/data-sheets/AD734.pdf When running a roughly 15kHz sine wave through the device, the positive current output limits at something between +200uA and +280uA. The


LTspice differentiation

Started by Piotr Wyderski in sci.electronics.design6 years ago 16 replies

Hello, I have a resistor R5 with some current flowing through it. It is possible to plot I(R5) by simply selecting the resistor. But is it...

Hello, I have a resistor R5 with some current flowing through it. It is possible to plot I(R5) by simply selecting the resistor. But is it possible to plot dI(R5)/dt? If yes, then how? An example circuit: Version 4 SHEET 1 916 680 WIRE 256 16 144 16 WIRE 464 16 336 16 WIRE 592 16 464 16 WIRE 720 16 592 16 WIRE 848 16 720 16 WIRE 464 48 464 16 WIRE 592 48 592 16 WIRE 720 48 720 16...


Odd Circuit, OP Amp over OP Amp

Started by Rich K. in sci.electronics.design9 years ago 33 replies

Why do you think the op. used this topology over the simple circuit 1 example? I thank you for your opinions in advance. Attached: LTSpice...

Why do you think the op. used this topology over the simple circuit 1 example? I thank you for your opinions in advance. Attached: LTSpice file. ------------------------------------------------------------------------ Version 4 SHEET 1 880 680 WIRE 176 -384 48 -384 WIRE 320 -384 240 -384 WIRE 48 -288 48 -384 WIRE 176 -288 48 -288 WIRE 320 -288 320 -384 WIRE 320 -288 256 -288 WIRE...