plc analog io modules management techniques

Reduce the demand for efficient power people and the size of electronic products, promote the development of digital power technology and power management technology. Modern power management semiconductors have been more associated with the power switch control circuit protection and integrated, plc analog io modules to reduce power management devices in the  digital input plc circuit board footprint and achieve the protection, control and fault monitoring functions combinations. Evolving the same time, digital power management ICs satisfied only detected voltage, current, temperature and other parameters, and gradually developed into an integrated digital PWM control, ADC and communication functions, and is moving towards becoming a complete power system on chip direction .
A digital plc analog io modules and  output module plc application management technology introduction
Generation IC requires 3.3 V, 1.8 V or lower supply voltage, the device requires multiple single voltage supply and the demand for a large electric current, the voltage must be applied to the device with the correct timing. Voltage power supply for these devices must be on the circuit board (preferably from these devices near the place) to produce, so that a minimum pressure drop and voltage stability. High-performance DC / DC converters for a wide range of input, either as isolated power, but also as a non-isolated point of load converters. Thus, most board power supply system has been high-speed counter plc  used DC / DC converter as a power supply module body. However, if the lack of power management circuits, you can not build a complete, robust power system. Content includes power management: Power system monitoring, sequencing and tracking, monitoring and fail-safe. Power management devices at the input common-mode rejection handling, start limit, starting and control off, and even power factor correction and other functions. Configuration at the output of the power management device control startup sequencing and output voltage regulation, and for the over-voltage, over-current conditions fail to provide appropriate protection. All relevant requirements and functional circuits are isolated from the main circuit.