Electronics Circuit Diagram

Below schematic depicts Simple Sound Trigger Circuit Diagram using 2N2222. The microphone is a piezoelectric buzzer element such as #273-073 available from Radio Shack. According to jonbeard.com, sound trigger is a very simple device that emits an electrical charge when it detects a loud noise.

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Simple Track Detector Circuit Diagram using NE556 IC. This Track Detector circuit design uses an Infrared LED Emitter and Photo Transistor Detector to sense movement of traffic on a track. The NE556 timer consists of two voltage comparators, a bistable flip-flop, a discharge transistor, and a resistor divider network.

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Here is circuit design of a Simple DC to DC Converter Circuit Diagram using DS3906 and MAX5025 IC. The output voltage, VOUT, is determined by the ratio of fixed resistors R1 and R2. The MAX5025 IC are capable of generating low-noise, high output voltages required for varactor diode biasing in TV tuners, set-top boxes, and PCI cable modems.

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A VCD or TV remote control is an electronic device designed to be used for operating/controlling/setting VCD or TV wirelessly from a short distance. Below schematic diagram illustrates a Simple VCD and TV Remote Control Circuit Design using CD4017 IC.

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Here is a typical simple Digital Barometer Block Diagram using MPL115A1. The MPL115A1 is an absolute pressure sensor with digital output. This circuit design features programmed calibration coefficients for host micro use.

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