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Bidirectional control is implemented for a motor to increase its operational degree. The motor can rotate in either direction with a current of 1A. A variable duty cycle multivibrator is utilized to achieve the construction and control of the...
Another version of the 1W VHF amplifier for the FM transceiver is presented. It is essentially the same version since achieving 1W output power has not yet been realized. Recent tests were conducted using a 2N2553 and a 2N2866...
The receiver circuit depicted in the figure requires the insertion of a plug into the radio headphone jack. When the radio receiver detects a signal from the transmitter, an audio signal is output from the jack. This signal is...
The working principle of this inexpensive and simple-to-build metal detector circuit involves mixing two equal frequencies, which results in a low-frequency interference. The metal detector circuit operates on the principle of heterodyning, where two frequencies are combined to produce a...
This circuit features a micro vibration sensor, a trigger delay circuit, and a control circuit, as illustrated in the accompanying figure. The micro vibration sensor comprises a vibration sensing device and a high power amplifier circuit, enabling it to...
The L29 Stepper Motor Controller IC facilitates the control of four drive signals for two bipolar and four unipolar footfall motors in a microcomputer-controlled appliance. It allows for motor operation in half-step, full-step, and wave drive modes, utilizing switch-mode...
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