Sensor circuit | Next Electronics

A sensor activates transistor Q1 to turn on the low-frequency 555 oscillator, which generates pulses to control LAMP II. The sensor may respond to variations in light or temperature. Either resistor RA or RB can function as the sensor, depending...

Analog Tachometer Readout

The analog display consists of a frequency/voltage converter (IC12) and bar-graph segment drivers IC10 and IC11. More: R34 is the calibration adjustment and is set so that an engine rpm of 5 000 to 7000 rpm lights the first LED...

Digital Oil-Pressure Gauge

This gauge utilizes a sensor along with resistor R1 to generate a DC voltage that is proportional to oil pressure. Integrated circuits IC1 and IC2 form a two-digit digital voltmeter (DVM). Transistors Q1 and Q2 act as display selectors for...

The 6090 Digital Decoder

This is an image Schematic. No Description available. The provided input indicates that there is a schematic image, but no additional descriptive information is available regarding its components, functionality, or application. In the context of electronic schematics, such images typically...

Linear ac analog coupler

The coupler is biased in the linear region using a 10 mA DC bias on the infrared emitting diode (IRED) and a voltage divider connected to the base of the phototransistor. This configuration allows the photodiode current to flow from...

Pots water alarm circuit

The flowers in pots require watering, as relying solely on the observation of moist soil surfaces can be unreliable. To address this issue, a flower watering indicator has been developed. This circuit includes a field effect transistor (VT1), a second...

Digital pulse width measurement circuit diagram CD4518 and CD4069 the

A digital pulse width measurement circuit is presented. It operates with a 100 kHz reference frequency to count the pulse width of the input signal. The count value represents the measured pulse width displayed on four seven-segment LED displays. The...

mixed-analog-digital-design

Mixed Analog/Digital Design Using Split Power and Ground Planes. The following example illustrates the design of a circuit that incorporates both analog and digital components. It features multiple power planes and a single ground plane that is divided into analog...

Automatic plant waterer

The unit consists of a sensor, timer, and electric water pump. The sensor is embedded in the soil, and when dry, the electronics operate the water pump for a preset time. The circuit is composed of a level-sensitive Schmitt trigger,...