Circuits & Schematics

Search results: 2,335 Output: 1-10
  1. Mike (mixos)
    The circuit presented here is a 3 W stereo audio amplifier with memory UP/DOWN volume control. The project is based on PAM8408 IC from Diode Incorp which is a filter-less class-D amplifier with high SNR and Differential input which helps eliminate ...
    Sep 22, 2026
  2. David A. Johnson
    A single 1.5 V silver oxide button cell powers this complete touch activated switch circuit for 5 years. It features both a normally open and a normally closed set of solid state switch thermals. It also has an adjustable sensitivity, which can be ...
    Sep 22, 2026
  1. Stephen Woodward
    This circuit exemplifies the thesis that the 555 is to analog timing what the opamp is to analog “everything else”! In any contest to see which is easier to manually program, digital potentiometers (dpots) suffer a big handicap when ...
    Sep 21, 2026
  2. Mike (mixos)
    This project is a simple, low-voltage push-pull PWM controller using the TI LM5032 chip and two MOSFETs. It's suitable for applications like DC-DC converters or Tesla coil drivers. Frequency, current sensing, and soft start are configured via ...
    Sep 16, 2026
  3. Stephen Woodward
    Circuits Digital Analog Devices MAX5451 MAX5453 MAX5455
    Courtesy of this circuit’s flexibliity, you can select and adjust both, one, or none of the channels of a dual digipot. One huge advantage that digital potentiometers have over electromechanicals is, of course, the inherent flexibility the ...
    Sep 14, 2026
  4. Hesam Moshiri
    Circuits Supply STMicroelectronics BD139 BD140 TIP35C TIP36C
    The core element of any electronic device is the power supply. Any instability or malfunction of the power supply causes the device to malfunction or demonstrate weird behavior. In some sensitive applications, we need a dual voltage-rail power ...
    Sep 14, 2026
  5. Stefan Wagner
    Replace your old 78xx voltage regulators with this much more efficient pin-compatible buck converter. Efficiency test. 7805 replacement. Input: 12 V. Max power: 11627 mW. Max efficiency: 93.2%. Efficiency test. 7805 original (L78S05CV). Input: 12 ...
    Sep 10, 2026
  6. Donald Schelle
    It is often difficult to design an effective thermal-management scheme that minimizes the risk of meltdown or fire. System orientation, placement, or both complicate matters by generating hot spots at varying locations on a PCB (printed-circuit ...
    Sep 9, 2026
  7. David A. Johnson
    An inexpensive piezoelectric wafer is used to detect vibration and when the vibration is sufficient a switch is activated. Materials on the topic Datasheet Texas Instruments CD4069UB discovercircuits.com
    Sep 7, 2026
  8. Hesam Moshiri
    An ultrasonic range finder is a useful tool in a variety of real-life and robotic applications, such as in obstacle avoidance and distance measurement systems. The ultrasonic range finder measures the distance by emitting a 40 kHz pulse of ...
    Sep 7, 2026