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- DC CIRCUIT ANALYSIS
-
- Version 1.1a - May 1993
- -----------------------
-
- Corrected a bug in the potentiometer calculation which did not
- affect any of the sample problems.
-
-
- Version 1.2 - June 1993
- -----------------------
-
- Added an on-line tutorial which has Hyper-Text like features.
- Tutorial is accessed using the F5 key.
-
- Changed the Opening Menu to replace:
- Save and Continue
- Exit without Saving
- Save and Exit
- with
- Save Circuit As
- Save Circuit
- Exit
-
- Added F6 command to switch between Analyze Circuit and Modify
- Circuit.
-
- Compressed the graphics library file and renamed it from DC.LIB to
- DC.IC.
-
-
- Version 1.3 - March 1994
- ------------------------
-
- This program requires a 286 or later processor.
-
- The filename is displayed in the Analyze and Modify screens.
-
- The Select Sample Circuit menu will automatically execute Analyze
- after selecting a sample circuit.
-
- Modified the calculation to use a double precision matrix of
- simultaneous equations resulting in a more accurate calculation.
-
- Convergence criteria is between 1.0e-8 and 1.0e-10 Volts.
-
- Modified P-N junction calculation to use an exponential increase in
- current. This eliminates the overshoot of the threshold voltage in
- previous versions and results in a more realistic answer. This
- change also required the DC.DCL library parameters to be modified.
-
- Replaced Darlington in library with IC containing two transistors.
- Previous versions of this program improperly calculated circuits
- containing darlingtons.
-
- Added Schottky diodes to library, and replaced conventional diodes
- with Schottky diodes where appropriate.
-
- Added Low-Power Schottky sample circuits for AND, NAND, OR, NOR,
- and 3-State gates. Also added, Schottky Diode sample circuit.
-
- Corrected overload check to determine if current passing through
- the collector-emitter junction of bipolar transistors are
- overloaded.
-
- Added 47K output resistors to all ECL ICs in the library.
-
- Modified various sample circuits, including SSSW, SSPOWSW,
- SSRPOWSW.