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The receiver circuit and display module will receive the high-frequency AC power cord and decode it to provide actual temperature readings using digital IC No. CD4553 (Three-digit BCD Counter IC) and IC CD4511 (BCD-to-7-Segment Latch/Decoder/Driver IC). The frequency pulses...
This channel selector selects video and stereo audio from any one of three different sources. The circuit should be constructed on a PC board with plenty of ground plane to minimize noise. The channel selector circuit is designed to facilitate...
This UHF amplifier circuit project is beneficial for enhancing weak TV signals. The amplifier provides a gain of 10-15 dB within a frequency range of 400 to 850 MHz. To ensure optimal performance and reliability, the PCB tracks should...
The 331 circuit depicted in the figure utilizes a two-way thyristor for controlling the start and stop functions of a motor. It operates without mechanical contacts, generating no noise or sparks, making it suitable for applications that require frequent...
The pyroelectric infrared sensor head operates as illustrated in the accompanying figure. Upon detecting an infrared signal from a human body within its monitoring zone, the sensor head generates a positive pulse signal. This signal is transmitted to the...
The circuit indicates two different water temperature trip points by activating LEDs when the specified temperatures are reached. It is built around the LM2904 dual operational amplifier, which is powered by a 12 V automotive system. A thermistor is...
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