automotive control system is based on electronic equipment. the reliability of automotive electronic products is directly related to the safety and reliability of the whole vehicle. itech has rich experience and products, and can provide mature, reliable and professional automotive electronic testing solutions for vehicle electronics, automotive central control box, automotive generator, relay, dc motor /dc-dc converter testing, dc brushless motor, automotive fuse, lamp and other fields. itech has a product line of automotive electronic testing instruments, with a maximum of 1152kw and a maximum voltage of 2250v.
cispr 25、gb/t 18655
iso7637-1/-2/-3 、gb/t 21437.1/.2/.3
iso10605、 gb/t 19951
iec 61000-3-2、gb 17625.1
iec 61000-3-3、gb 17625.2
《radio disturbance characteristics of vehicles, ships and internal combustion engines limits and measurement methods for the protection of on-board receivers》
《test method for immunity of electrical / electronic components of road vehicles to narrowband radiated electromagnetic energy》
《limits and measurement methods for electromagnetic radiation immunity of motor vehicle electronic and electrical components》
《electrical disturbance caused by conduction and coupling of road vehicles》
《test method for electrical disturbance caused by electrostatic discharge of road vehicles》
《environmental conditions and tests for electrical and electronic equipment of road vehicles part 2: electrical loads》
《electrical and electronic equipment electrical loads for 42v supply voltage of road vehicles》
《electromagnetic compatibility limit harmonic current emission limit (equipment input current ≤ 16a per phase)》
《electromagnetic compatibility limit harmonic current emission limit (equipment input current per phase >16a and ≤ 75a)》
《electromagnetic compatibility limit limits the voltage change, voltage fluctuation and flicker of equipment with rated current ≤ 16a per phase and unconditionally connected in the public low-voltage power supply system》
▪ electrostatic discharge immunity, contact discharge 4kv, air discharge 8kv
▪ rf electric field radiation immunity, maximum test field strength 3v/m
▪ electrical fast transient burst immunity, maximum test level 1kv
▪ surge (impact) immunity, maximum test level 2kv
▪ rf conducted disturbance immunity, maximum test level 3v
▪ voltage sag, short-time interruption and voltage variation immunity, according to iec61000-4-11
▪ the low-frequency immunity of harmonic, inter harmonic and grid signals at the ac power port shall be in accordance with iec61000-4-13
▪ conducted disturbance voltage, 150khz-30mhz, qp/av
▪ disturbance power, 30mhz-300mhz, qp/av
▪ click sound, 150khz-30mhz, qp
▪ radiation disturbance (toys only), 30mhz-1ghz, qp
▪ harmonic current emission test according to iec 61000-3-2
▪ voltage fluctuation and flicker test according to iec 61000-3-3
shanghai suoshen electronics is widely used in many industries, such as medical treatment, automotive electronics, home appliances, lighting, electrical appliances, power supply, power facilities and so on
voltage dips/sags, short interruptions are caused by failures of the power grid and power facilities or sudden large changes in loads. in some cases, there will be two or more consecutive dips or interruptions. voltage changes are caused by continuous changes in the loads connected to the grid. if the eut cannot respond in time to changes in the power supply voltage, it may cause malfunctions. voltage dips generators are used to evaluate the performance of electrical and electronic equipment when subjected to voltage dips/sags, short interruptions, and voltage changes. products fully meet the requirements of standards iec/en 61000-4-11 and gb/t17626.11.
the impact of lightning (indirect lightning) in nature and voltage changes caused by large switch switching in power supply lines on power supply lines and communication lines is particularly large, and the impact on products may be destructive. the lightning surge generator is used to evaluate the performance of the equipment when it is subjected to high-energy disturbance from the power line port and other signal line ports. the product meets the requirements of new standards such as iec61000-4-5 and gb/t17626.5.
in the circuit, such as from the switching transient process (cutting off inductive loads, bouncing relay contacts, etc.), it will usually interfere with other electrical and electronic equipment in the same circuit. this kind of interference is characterized by high amplitude, short rise time, high repetition rate and low energy. clusters of narrow pulses can charge the junction capacitance of semiconductor devices, which may cause circuit or equipment errors when accumulated to a certain extent. the burst generator determines a common reproducible evaluation basis for evaluating the performance of power supply ports, signal, control and grounding ports of electrical and electronic equipment when disturbed by electrical fast transient bursts. the products meet the requirements of new standards such as iec61000-4-4, en60100-4-4 and gb/t17626.4.