Circuits & Schematics - 2

Search results: 2,771 Output: 11-20
  1. In the circuit of Figure 1, assume that a brush-type dc motor must drive a load back and forth between two endpoints on a lead screw. Optical sensors determine end of travel, and an SPDT switch selects to which end to send the load. The sensors ...
    21-09-2021
  2. Most simple circuits you'll find for measuring reactive components cover only a limited range of component values. Here's a circuit built from a handful of inexpensive parts that will let you measure values of both capacitors and inductors ...
    20-09-2021
  3. It can be helpful to rapidly and easily determine the polarity (npn or pnp) and function of a transistor. The pocket-transistor tester in Figure 1 is ideal for quickly testing without regard to such parameters as gain and frequency response. You ...
    16-09-2021
  4. The circuit here is an oscillator with an unusual frequency divider that I designed when I was developing an RF system. I needed a stable and accurate 455 kHz digital signal generator that used as few components as possible. The signal generator ...
    14-09-2021
  1. Also called the ThermoPen, the goal of this project was to create a portable thermometer usable for precise uses case. More particularly, is was created to inspect overheating electronic parts on PCB and for general troubleshooting. At my school, ...
    13-09-2021
  2. Over the years, various power-off circuits have been published. However, the circuit proposed here is very simple and has excellent characteristics. It features a fast power-off transition, with only 8 mV voltage drop at power on and sub-µA ...
    07-09-2021
  3. Some transducers for portable or automotive applications need accurately regulated, high-voltage bias and draw little current. To produce such high voltages from a low battery voltage, designers typically use switch-mode dc/dc converters generally, ...
    01-09-2021
  4. Class D audio amplifiers provide a dual benefit for battery-powered portable devices (Figure 1). They enhance battery life, and they produce much less power dissipation than do their linear cousins. Those features make Class D amplifiers ideal ...
    26-08-2021
  5. D-type flip-flops, with the inverted output connected to the D input, can toggle a clock signal. If your circuit has an extra Schmitt-trigger inverter gate, you can use it to accomplish the same thing. Every time you press and release the momentary ...
    25-08-2021
  6. A previously-published Design Idea outlined a polarity protection circuit [ 1 ] that provides the correct connection of the battery to a load regardless of the battery’s orientation in its holder. The circuit, based on the MAX4636 , a ...
    24-08-2021