Schematic diagrams of several commonly used control circuits

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Schematic diagrams of several commonly used control circuits [Copy link]

1. Schematic diagram of synchronous control socket circuit of cooling fan The working principle of the application circuit of this device is shown in the figure below. For the heat dissipation of electrical equipment, cooling fans can usually be used to drive away the heat. The synchronous control socket made of LCE does not require any changes to the equipment and its circuits. Just insert the power plug of the electrical equipment into the power socket CZ1 and the plug of the electric fan into the power socket CZ2. When the electrical equipment is powered on, the electric fan will automatically start and run. When the power of the electrical equipment is disconnected, the electric fan will also stop working. 2. Schematic diagram of no-load energy saver circuit of electric meter The working principle of the application circuit of this device is shown in the figure below. We know that in the electric meter, the voltage coil and the current coil are connected to the power grid in parallel. Regardless of whether there is a load in the circuit, the voltage coil is always consuming electric energy. If we use the LCE module, we can completely solve the problem of no-load loss of the watt-hour meter. When the load RL is connected in series in the current coil loop, the voltage coil is also connected immediately, which does not affect the electricity consumption measurement; when the load RL is disconnected, the current in the voltage coil is also cut off, so there is no-load loss. 3. Principle of the shared antenna amplifier power automatic controller circuit The working principle of the application circuit of this device is shown in Figure 3. Usually the power switch of the shared antenna amplifier and the user's TV are separated. Sometimes no TV is working, but the antenna amplifier is still powered on, consuming electricity in vain. At other times, there may be multiple TVs receiving programs, but the power switch of the shared antenna amplifier is not closed, so of course, a good reception effect cannot be obtained. The use of the LCE module can be easily controlled automatically. When any of the sockets CZ1, CZ2, and CZ3 (of course, more power sockets can be designed and installed as long as the power of the LCE used allows) for the TV is plugged in and the power switch of the TV is turned on, the power supply of the shared antenna amplifier will be automatically supplied. This will not waste energy, will not affect the TV users, and does not require special management. 4. Working principle of high and low voltage sequence control switch The working principle of the application circuit of this device is shown in the figure below. In some electronic equipment composed of vacuum tubes or other equipment, several power supply voltages, such as high voltage and low voltage, need to be started in a certain order. If you neglect it for a moment, you may operate it incorrectly. The use of LCE modules can solve this problem. T1 is a low-voltage transformer, and its primary coil is connected in series in the ② foot of LCE; T2 is a high-voltage transformer, and its primary coil is connected in series in the ① foot of LCE. The normal startup sequence should be: press switch S1 first, wait a while, let the filament of the vacuum tube preheat, and then press switch S2. If the operation sequence is reversed, and switch S2 is pressed first, the circuit will not work, thus ensuring the correctness of the operation procedure. 5. Working principle of the automatic converter for power failure emergency lights. The working principle of the application circuit of this device is shown in the figure below. In some special occasions where lighting interruption is not allowed (such as surgical operations, etc.), the automatic converter for power failure emergency lights made using LCE modules can achieve uninterrupted lighting after power failure. Among them, H1 is the normal lighting equipment; H2 is the lighting equipment for power failure emergencies.