DOWNLOADABLE DESIGN FILES
These files have a .TXT extension because I could not upload .BAS files. BASIC will run them anyway.
To download these programs, select the name then click on "file" and "save as". Choose .txt as file type. Save it in a folder on your hard drive. You must verify that these circuits meet your needs. It may be possible to design circuits with these programs that operate outside the manufacturer's limits. No representation is made that circuits designed with these programs will work within a tolerance or MTBF.
| File name | Description |
| LM117DES.TXT | Given the input and output voltages, designs and prints the circuit for a DC to DC voltage regulator. |
| LM565DES.TXT | Designs a phase lock loop using the LM565 IC. |
| 74HC4046.TXT | Phase lock loop design using the 74HCT4046A |
| PLLDES.TXT | Designs a phase lock loop with active or passive filter, also writes a SPICE file that allows you to simulate the PLL. See PLLDES.DOC next below. |
| PLLDES.DOC | A text file that explains the design process and program. |
| 78S40DES.TXT | Designs a switching power supply using the NS78S40 IC. Gives the inductor design also. |
| TIMER.TXT | Designs a timer circuit using various ICs: 74121, 74122, 74123, LM555, CD4047B, MC14538B |
| POSAMP.TXT | Designs a non-inverting op amp circuit with specified gain and DC offset. |
| INVAMP.TXT | Designs an inverting op amp circuit with specified gain and DC offset. |
| OCLIN.TXT | Designs a diode shaping network for an open circuit load. |
| BIN_DEC.TXT | Converts a binary number to decimal |
| DEC_HEX.TXT | Converts a decimal number to hexadecimal |
| HEX_DEC.TXT | Converts a hex number to decimal |