Circuits & Schematics: Design - 7
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- .. well. You can of course use a specialised PCB package, but I wanted an unusual cursive font on mine, so just hand-drew the design on a graphics package. This allowed me to incorporate my name into the actual circuit board - the electric ...Dec 11, 2007
- .. well. You can of course use a specialised PCB package, but I wanted an unusual cursive font on mine, so just hand-drew the design on a graphics package. This allowed me to incorporate my name into the actual circuit board - the electric ...Dec 12, 2007
- .. AV-1015B, the pulse generator’s duty cycle is approximately 50 nsec at TTL with a 50 Ω load. The goal of this Design Idea is to increase the pulse generator’s high-level width to meet the triggering spec of a lock-in ...Dec 17, 2007
- .. interpreted graphical indicator that allows comparison with its full-scale value, but a conventional microcontroller-based design uses at least one eight-line I/O port to drive an eight-segment-bar-graph LED display. As an alternative, ...Dec 18, 2007
- .. only lights one led at a time, since they’re relying on the microcontroller to both source and sink current. My design is a bit different. The mcu sources current to each anode column, and N channel fets sink current for the ...Jan 6, 2008
- .. a positive-charging current. The outputs of both op amps are positive and range from 0 to approximately 5 V and simplify design of the interface with the ADC's multiplexed inputs. Using Texas Instruments' TLC27 7 for IC2 offers the ...Jan 21, 2008
- .. more appropriate approach because external I/O ports, such as RS-232 and USB, tend to maintain backward compatibility. This Design Idea covers the development of a GPIB controller, which turned out to be easier and cheaper than commercially ...Jan 22, 2008
- .. rapid attack and provide low ripple during the exponential decay but cannot follow the rapid decay of a muted string. The design in Figure 1 features fast attack and low ripple with minimal filtering, and it can follow a rapid decrease in ...Jan 22, 2008
- .. to 250 V, a reasonable R 1 value is 150 to 225 kΩ 150 kΩ in this case. Q 1 and R 1 form a shunt regulator. The design uses Q 1 because of its maximum V CE rating of 300 V, high gain of 100 V/V at 1 mA, and its ability to handle ...Oct 26, 2020
- .. image, you can see that each of these has a front panel area that is recessed by a fraction of an inch. Use a program to design the front panel overlay - I use Adobe Illustrator, but that is not the easiest to use (or the cheapest). ...Feb 4, 2008
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