Circuits & Schematics

Search results: 2,696 Output: 1-10
  1. The circuit in Figure 1 uses the LM358 dual op amp running as a comparator, plus a few other inexpensive components, to make a TTL (transistor- transistor-logic)/CMOS-logic probe. The circuit gets its power from the circuit under test, which lets ...
    08-04-2021
  2. Circuits Measurement Maxim MAX6674 MAX6675
    The thermocouple is a popular sensor for industrial temperature measurement because it's accurate, cost-effective, widely available, and suitable for a wide range of temperatures. It consists of two wires of different metal or metal alloys, ...
    07-04-2021
  3. Circuits Interfaces Supply Maxim MAX1797 MAX1811 MAX1837
    The circuit in Figure 1 derives its power from a USB port and produces 5 and 3.3 V supply rails for portable devices, such as digital cameras, MP3 players, and PDAs. The circuit allows the port to maintain communications while, for example, ...
    06-04-2021
  4. Instrumentation amplifiers serve in a variety of applications that need to extract a weak differential signal from large common-mode noise or interference. However, designers often overlook the potential problem of RF rectification inside the ...
    04-04-2021
  1. This Design Idea describes an enhancement to a previous one ( Reference 1 ). The circuit in Figure 1 uses a normally open SPST pushbutton switch, S 1 , instead of the SPDT switch that the original design required. You can use a membrane switch to ...
    30-03-2021
  2. I recently needed to control nine seven-segment displays for a microcontroller's serial port. The complication I faced was the need to provide a continuous brightness adjustment for all the digits from completely dark to fully bright. I ...
    26-03-2021
  3. Circuits Measurement Texas Instruments CD4066B SN74LVC2G74 SN74LVC3G14 OPA333 TLV431
    This Design Idea presents a low power short circuit finder that capitalizes on the ear’s sensitivity to changes in frequency. The heart of the circuit is a voltage-to-frequency converter (based on Ref. 1, Figure 13), which converts ...
    23-03-2021
  4. The Texas Instruments IVC102 precision integrator has high-quality internal capacitors. The circuit in Figure 1 allows you to measure very-high-resistance values of R X . A precision difference amplifier, a TI INA105 , applies a reference voltage ...
    22-03-2021
  5. In dc/dc-converter applications in which the input voltage may be lower or higher than the output voltage, you can use either a flyback converter or a SEPIC (single-ended-primary-inductor converter). SEPICs offer lower input-current ripple and ...
    16-03-2021
  6. The 4- to 20-mA current loop is ubiquitous in the world of controls in manufacturing plants. Discrete logic, microprocessors, and microcontrollers easily cover the digital portions of control schemes, such as limit switches, pushbuttons, and signal ...
    13-03-2021
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