Sensor used is a digital PIR sensor module; This is a basic circuit. It is possible to control Hi-Power sirens (pin D6), and flashers (pin D5) using suitable transistor/mosfet drivers; If you wish to ...

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 ...

The PIR sensor used in this code example uses an interface circuit that removes the DC bias present in the raw analog sensor output signal, and provides enough amplification to the remaining small ...

Analog signals – directly measurable quantities in terms of some other quantity. Examples: Thermometer – mercury height rises as temperature rises Car Speedometer – Needle moves farther right as you ...

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 ...

A wide input range 1.7μW, 1.2kS/s resistive sensor interface circuit fabricated in 0.18μm CMOS is presented. This circuit consumes 6.6× lower power and 31.8× less energy than previous state-of-the-art ...

A Direct Sensor Readout Circuit Using VCO-Driven Chopping with 42dB SNR at 800µVpp Input Abstract: ... It processes an 800µVpp input signal and achieves 42dB SNR with 1KHz bandwidth while consuming ...

The input path consists of an instrumentation amplifier (in-amp) that interfaces the sensor to a fully differential amplifier (FDA), which finally drives the ADC. The in-amp isolates the input sensor ...

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 ...

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, ...