Simple SPICE model simulates laser diode :  07/16/98 EDN-Design Ideas  / (added 11/05)   

Simplify computer aided engineering with scientific to engineering conversion:  09/30/04 EDN Design Ideas  / (added 10/05)  The simple yet useful formula in this Design Idea enables conversion from scientific format (for example, 2.2-9), which is typical for CAE (computer-aided-engineering), double-precision output values, into "human-friendly" engineering format (for example, 2.2 nF). The engineering format is more suitable for bills of material and other electrical and electronic-engineering documents and specific...

Simplify worst-case PSpice simulations with customized measurement expressions:  12/16/05  EDN Design Ideas  /  (added 11/06)  Circumvent PSpice's No embedment provision.

Simulate input offset Current for Current mirrors:  06/24/04 EDN Design Ideas  /  (added 1/05)  Simulating the output-offset current of a current mirror is straightforward. You simply have to apply an input current, measure the output current, and calculate the difference. This output-offset current, however, is not equal to the input-offset current, especially when the circuit is not a 1-to-1 mirror....

Simulation SPICE Models for Comlinear's Op Amps:  National Semiconductor Application Note   (app note added 6/06)

Speedy SPICE Subcircuit Models Lossy Line:  07/21/94 EDN Design Ideas /  (added 11/05)

SPICE Accepts and Displays Y Parameters:  08/04/94 EDN Design Ideas /  (added 11/05)

SPICE Compatible Macromodel for CMOS Operational Amplifiers:  National Semiconductor Application Note   (app note added 2/06)

SPICE Creates Time-Variant Resistor:  10/28/99 EDN-Design Ideas / (added 11/05)

SPICE Current and Voltage Generators Accept Tolerance Spec:  10/13/94 EDN Design Ideas /  (added 11/05)

SPICE does digital filters :  09/29/94 EDN Design Ideas /  (added 11/05)

SPICE filters alLow experimenting without designing actual circuits :  11/10/94 EDN Design Ideas /  (added 11/05)

SPICE generates PSK and FSK signals :  03/26/98 EDN-Design Ideas  / (added 11/05)   

SPICE introduces dead time in simulations :  08/03/98 EDN-Design Ideas  / (added 11/05)   

Spice Model and PWM Amplifier Applications - App Note 33:  Apex Microtechnology Corp App Note (added 6/06)

SPICE Model Simulates Broadband Transformer:  05/11/95 EDN-Design Ideas / (added 11/05)

SPICE model simulates laser diode :  07/16/98 EDN-Design Ideas  / (added 11/05)   

SPICE model simulates spark-gap arrestor :  07/03/97 EDN-Design Ideas / (added 11/05)  

SPICE Models CMOS Switch:  02/17/94 EDN Design Ideas / (added 11/05)

SPICE Models Differential Stripline:  10/12/00 EDN-Design Ideas  / (added 9/04)

SPICE Models Power MOSFET s:  03/02/95 EDN-Design Ideas / (added 11/05)

SPICE Op Amp Macromodel for the LT1012:  DN28  Design Notes (Linear Technology) (app note added 1/06)

SPICE Plots Noise Figure:  06/09/94 EDN Design Ideas /  (added 11/05)

SPICE Predicts Differential Conducted EMI from Switching Power Supplies:  02/03/97 EDN-Design Feature / (added11/05)   Spice not only can predict the exact EMI levels produced by a switched-mode power supply, but also can produce plots that allow you to easily evaluate your design and the effectiveness of the EMI filter.—Christophe Basso, Sinard, France

SPICE Protection:  National Semiconductor Application Note   (app note added 6/06)

SPICE Provides Z Domain Circuit Simulation:  04/11/96 EDN-Design Ideas / (added 11/05) 

SPICE Runs Thermal Analysis:  08/18/94 EDN Design Ideas /  (added 11/05)

SPICE simulates a fluorescent lamp :  11/06/97 EDN-Design Ideas / (added 11/05)  A hot-cathode fluorescent lamp (HCFL) contains a gaseous mixture that flows between two tungsten electrodes, or filaments. In domestic applications, the mixture comprises mercury vapor and a small quantity of inert gas (krypton or argon). The inert gas vaporizes the mercury during turn-on. To lengthen the filament's lifetime, a preheating period brings the electrodes to a high-enough temperature before avalanche occurs. The warm-up is easy to effect by supplying the filaments with ac or dc during the first few hundred milliseconds. During this emissive period, the filaments increase the electron population in the tube and consequently reduce the avalanche potential, thereby resulting in a lower striking voltage for the lamp. Once struck, the lamp maintains a quasiconstant voltage, or "arc voltage," across its....

SPICE Subcircuit Models Thermistors:  07/03/97 EDN-Design Ideas / (added 11/05)  

SPICE Subcircuit Simulates Any Second Order Filter:  01/06/94 EDN-Design Ideas  / (added 11/05)

SPICE-Compatible Op Amp Macro-Models:  AN-138 Analog Devices Application Notes  (app note added 6/06)

STLC60133 small signal spice model:  AN1591  (app note added 6/06)

Use PSPICE for Behavioral modeling of VCOs:  12/12/02 EDN Design Ideas  /  (added 1/05)  PSpice, a member of the Spice family for PC users, is becoming a standard tool for analog and mixed analog-digital simulation. Many analog designers are familiar with the software of Design Center, Design Lab, and OrCad (www.orcad.com) PSpice and use the software in their everyday lives. This Design Idea should be helpful to those who design and simulate PLL systems at a behavioral level....

Use PSPICE to model distributed gap cores:  03/17/05   EDN-Design Ideas / (added 5/05)  PSpice software lets you create magnetic-core models that simulate nonlinear magnetic devices (Figure 1). These simulations are useful for observing hard-to-measure magnetic parameters such as core flux density, especially when you cannot quickly procure a sample device. The required inputs to the PSpice magnetic-core model are initial permeability of the core material, data points from the B-H magnetization curve, and the physical properties of the core, such as magnetic-path length, cross-sectional area, and air-gap length....  

Zetex SPICE Models: Understanding Model Parameters and Applications Limitations:  Zetec Semiconductors  Applications Notes This report describes the basic Gummel-Poon model as used as a basis for analog circuit simulations. An overview of the model parameters and their derivation, as well as guidelines for model manipulation for specific cases are also included. A number of typical application circuits are suggested with the resultant SPICE predictions of operation.   (app note added 2/06)