Rectified DC power supply system sensor design elements

DC power meter management control in electrolysis industry has a pivotal position , it is one of the main technical assessment indicators tapping the potential of business efficiency , but also to protect one regulating rectifier power source running smoothly , so that the DC sensor power rectifier system accurate, stable and reliable is very important.As we all know , the current domestic market popular DC current sensors and closed-loop two separate forms , and the two forms of Car Temperature Sensor measurement accuracy has its theoretical basis , are based on the current Hall elements collected by the air gap in the magnetic circuit and the magnetic field is proportional to the voltage signal converted over , under current law the theoretical framework of the whole design .Factors affecting the DC sensor measurement accuracy depends largely on the choice of the core and the Hall device , as much as possible to ensure the performance of magnetic materials , magnetic materials forming around them a special process to deal with the structure , making the magnetic material permeability is improved, so that Coolant Temperature Sensor has been effectively guaranteed linearity . In the Hall devices , the requirements of its good work in the constant temperature stability and output linearity , and with good frequency characteristics.DC sensor circuit board preferably double-sided gold-plated plate , electrical connector preferred fasteners to ensure high reliability products ; temperature compensation process in terms of a single Hall element to prevent the influence of temperature on the outside of the electronic Crank Position Sensor concentrated in a circuit portion controlled thermostat box inside , avoiding the influence of a local temperature coefficient of the offset caused by the change in the system occurs , thus ensuring the high stability of the product ; the sensor selection circuit structure is preferably three differential amplifier circuit , eliminating the Hall element is greater than the output resistance of the op amp input resistance generated errors. After stage amplifier circuit sensor multistage isolation amplifier output , the output signal interfere with each other , so that the DC current meter with large access control system is very convenient. Multiple parallel rectifier , when one station blackout, straight nets reverse side short circuit short-circuit current is large, the contact sensor to set a limit reverse current protection , to reverse the protective effect of the rectifier unit.