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The integrated circuit input side contains an oscillating circuit, where the oscillation frequency is determined by the external components L1, C1, and the sensor's equivalent capacitance. The equivalent capacitance increases as the sensor is immersed in liquid. The oscillating...
A video amplifier output arrives at a differentiation stage before the Schottky comparator. The typical propagation delay is reduced to 10 ns. The output pulse width is determined by the capacitance value, where C is 100 pF, resulting in...
This document describes an automatic traffic intersection light control circuit. It features four monostable delay circuits, which consist of four 555 timer integrated circuits (IC2 to IC5) and several RC components interconnected. An 8V input voltage is regulated through...
Many times we needed to use a simple circuit of preamplifier, with few components and facility of made. This circuit uses an opamp, the Motorola, TCA5550, that contains a double amplifier, as outputs for the adjust of volume, balance,...
Most existing designs utilize direct switching of lights without any software control and include manual potentiometers for light sensitivity and overall gain settings. There are limited references regarding the frequency filter circuitry, explaining the specific frequencies the circuit is...
The HA-5190 can drive the 75-ohm coaxial cable with signals up to 2.5 V peak-to-peak without the need for current boosting. In this circuit, the overall gain is approximately unity due to the impedance matching network. The HA-5190 is a...
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