Power electronics technology is a combination of electricity technology and electronic technology, can achieve mutual conversion of AC and DC current , and enables free adjustment of current, voltage and frequency within the desired range . With the adoption of these technologies and products, it can be made into a variety of special power supply ( such as UPS, high frequency power supply, switching power supply, Arc inverter welding machine , etc.), alternating-current converter and so on. The core of these frequency devices is high-power semiconductor devices. Kinds of current sensors with the base of magnetic sensor, are used to monitoring control and protect the high-power devices . Hall current sensor with high response speed, relying on magnetic fields and accused of coupling circuit , doesn¡¯t need to access to the main circuit , causing low power consumption, strong anti-overload , good linearity, high reliability, can be used as Over-current protection drive for high power device , also as a feedback device, so it becomes a part of Control loop of a control link.

• Using frequency conversion technology can save a lot of energy. Currently, 95% of power is converted from this magnetic sensor technology in abroad, although it has received serious attention while only 5% of power supply comes from converter technique at home, we can see a follow-up to their big transformation space , the demand for large amounts of current sensor , which it is another of great industrial application for magnetic sensor.

Tags: neodymium magnets magnetic sensor Smco magnets