In voltage comparator mode, the OpAmp compares the voltage levels between its inverting input (pin2) and the non- inverting input(pin3) and gives an appropriate high / low output. ... Light Sensor ...

At the heart of the circuit is the OS25B10 transmissive optical sensor with phototransistor output (OC1). Next is the venerable LM393 dual comparator chip (IC1) configured as a simple Schmitt trigger ...

A sensor is a device that converts a physical quantity into an electrical signal that can be processed by a circuit or a computer. Sensors can be classified into two types: active and passive.

Figure 1. In this common-base oscillator circuit, the in-phase feedback is between Q1’s collector and emitter. Figure 2. This LTSpice simulation shows the circuit’s output. I built it on a small ...

The ISL2853x and ISL2863x give the user access to the output of the input amplifiers for this purpose. VA+ is referenced to the non-inverting input of the difference amplifier, while VA- is referenced ...

It can therefore be used as a simple light sensor. Examples of products include solar garden lights and street lighting. ... Input devices provide an input signal to a circuit.

Operating with an input range from 8 to 450 Vdc the HV7800 high-side current sensor works with dc-power systems of 12V, 24V, and 48V and off-line ac systems of 85V to 265V. The ...

A 24-bit sensor Read-out Integrated Circuit (ROIC) with a ±5V input range is presented in this paper. The system utilizes a two-opamp programmable gain amplifier (PGA) and a third-order incremental ...

Current Sensor Supports Wide Input-Voltage Range. March 15, 2006. ... a developer of analog and mixed signal integrated circuits (ICs), has released a current sensing IC, the HV7800, ...

Revise input and output devices in practical electronic circuits for BBC Bitesize 4th Level Science.