In the normal operation of transmitters and other instruments, the most serious harm is spike pulse interference. The equipment that produces this interference in working conditions may include electric welding machines, large motors, control machines, relay contactors, inflatable lights with ballasts, and even electric soldering irons. In response to such spikes, we can use the efficient design of the power supply system to suppress the occurrence of transmitter interference. Method 1: Hardware circuits suppress the effects of spike interference. An interference controller is connected to the power input of the transmitter to distribute the energy concentrated by the spike voltage to different frequency bands, thereby reducing its destructiveness. A super isolation transformer is added to the power input of the transmitter to suppress the spike pulse by using the principle of ferromagnetic resonance. A varistor is connected in parallel at the input of the transmitter power supply, and the resistance value is reduced when the spike pulse arrives to reduce the voltage that the transmitter distributes from the power supply, thereby reducing the effect of interference. Method 2: The software method suppresses the effect of spike interference. For periodic interference, time filtering can be programmed, that is, the thyristor can be programmed to turn on without sampling instantly, so as to effectively eliminate the interference. Method 3: Use power supply grouping to supply power. For example, the drive power supply of the actuator motor is separated from the control power supply to prevent interference between devices. Method 4: The noise filter can also effectively suppress the interference of the driver to other equipment. This measure can effectively suppress the above interference phenomena. Method 5: Use an isolated transmitter. Considering that the high-frequency noise through the transformer is mainly not based on the mutual inductance coupling of the primary and secondary coils, but by the coupling of the primary and secondary parasitic capacitance, the primary and secondary stages of the isolation transformer are isolated by a shielding layer to reduce their distributed capacitance to improve the ability to resist common mode interference. Method 6: Use a power supply with high anti-interference performance, such as a power supply with high anti-interference designed by using the spectrum equalization method. This power supply is very effective in resisting random interference, it can convert the high spike disturbance voltage pulse into the low voltage peak voltage, but the energy of the interference pulse does not change, so as to improve the anti-interference ability of the transmitter and instrumentation. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!