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Starting circuit of DC motor controlled by time relay
This is actually the DC motor start circuit which is started by resistor step-down, but only the time relay is used to control the sequence of short resistance. Close the power switch QS, press the start button ST, the DC contactor 1 KM is sucked ...
Basic Radio Emission Circuit Composed of Surface Acoustic Wave Resonator SAW
(a) The basic circuit of transistor UHF radio transmission consisting of a surface acoustic wave resonator (SAW), in which SAW is temporarily connected as a positive feedback element to the base of the triode VT in parallel with the LC network. (b...
Automatic control of oil tank filling level with frog sounding circuit
Related Component PDF Download:3DUKD-56020901490137812The circuit is shown in the diagram. It is composed of photocoupler, relay control solenoid circuit, frog sounding circuit and AC voltage-reducing rectifier circuit. Usually, there is...
Harmful Gas Identification Audio Circuit
Related Component PDF Download:MQS2BTWH8751TM-801ALM386The circuit is shown in the diagram. It is composed of harmful gas sensor, power switch, relay control exhaust fan circuit, vomiting sounding circuit, audio power discharge circuit a...
Fish Tank Oxygen Timer Circuit
Related Component PDF Download:AT89C20517805Nowadays, many people like to raise fish in their homes. I think the following might be useful. This is something I want to do when I visit a friend's house and see something similar. My friend...
LMD18245 bipolar stepper motor controller circuit
A wide variety of motor applications can be designed using the LMD18245 full-bridge power amplifier, which contains all the circuit blocks needed to drive and control one-phase current of a brushed DC motor or bipolar stepper motor. The LMD1824...
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