Circuits & Schematics: Design
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- Rex Niven.. hotter than the others, its gain increases, and it takes more current and gets even hotter until it self-destructs. This Design Idea shows how you can avoid this problem for pulsed-current-mirror applications. Figure 1. A pulsed-current ...Jan 6, 2025
- T.K. Hareendran.. that I was working on. I found lots of ideas on the internet, but they all lacked in one area or another, so I decided to design one. The following lays out my easy-to-build ultrasonic mist maker. It works fine and is, by far, the easiest ...Dec 24, 2024
- Stephen Woodward.. significant crossover distortion can be expected to creep in for low signal amplitudes and frequencies above 10 kHz or so. Design equations are unchanged from Figure 2. Materials on the topic Datasheet Microchip MCP4131 Datasheet Texas ...Dec 17, 2024
- Stephen Woodward.. was surprised recently when a (nearly) two-decade-old design idea of mine for take-back-half temperature control ( Ref. 1 ) got a question from reader John Louis ...Dec 10, 2024
- Stephen Woodward.. up with suitable power output stages, which is indeed common practical practice. Problem solved. But just for fun, this design idea takes a different path to power by merging a venerable (the “L” stands for ...Dec 2, 2024
- Tim Davis.. subcircuit that uses degeneration of a PNP transistor to achieve zero temperature coefficient (tempco or TC). This low-cost design is the result of collecting data on many semiconductor devices over a 15+ year period and frequent reviews of ...Nov 30, 2024
- Nick Cornford.. noise annoys. Occasionally, it can be a valuable tool. Surprisingly, there is a whole palette of noise colors [ 1 ]. This design idea (DI) shows good ways of generating the commonest and most useful ones, which are white [ 2 ] and pink [ ...Nov 28, 2024
- Aaron Schultz Peter Haak.. capacitance at its output. For this white noise generator circuit, some output capacitance that leads to peaking can be a design feature rather than a hazard. The output sees 10 kΩ R S and a 50 nF C X to ground. This capacitor C X ...Nov 24, 2024
- Валерий Бабанин.. Yellow and white LEDs have been successfully tested. Don't forget to shade the optocoupler in bright light. Figure 4. Design of a homemade optocoupler. The filter capacitor C3 can be omitted when working with frequencies above 1 kHz; ...Nov 20, 2024
- Aaron Schultz Peter Haak.. circuits can be characterized by sweeping the input signal across a range of frequencies and observing the response of the design. Input sweeps can be composed of discrete input frequencies or a swept sine. Extremely low frequency sine ...Nov 19, 2024
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