2021-07-21 15:09:53
Power management modules are widely used in switching equipment, access equipment, mobile communications, microwave communications, optical transmission, routers, and other fields as well as automotive electronics, aerospace, and other industries. Before we discuss power management modules, let's discuss the difference between power management modules and power supplies. By definition, a power supply is a device that converts other forms of energy into electrical energy. A power module, though a power supply unit, is essentially a power converter that can be soldered and plugged directly into a circuit board. For example, we must charge a cell phone battery, but we cannot plug the phone directly into the battery, the high voltage will cause the phone's lithium battery to crash, we can choose to use a converter technology device, which more efficiently converts the 220v voltage on the plug into the proper voltage for the phone itself, this ensures a smooth voltage flow to charge the lithium-ion battery, the power module is also the essence of this converter technology device The power module is also the essence of this converter technology device.
What does the power management module do?
One: safety isolation
Strong power weak isolation, IGBT driver isolation, isolation surge protection, lightning isolation protection (such as isolation with medical electronic equipment to protect human contact)
Second: noise for isolation
Analog control circuit and digital system circuit isolation, strong and weak signal isolation
Three: to eliminate ground loops
Remote signal transmission, distributed power supply system. Second, the role of protection: short-circuit protection, overvoltage protection, overcurrent protection, other protection three voltage conversion: boost conversion, down-conversion, AC-DC conversion (AC / DC, DC / AC), polarity conversion (polarity conversion, a single power supply, and positive and negative power converter, with multiple power conversion single power supply)
Four: voltage regulation
AC mains power supply, remote control DC power supply, distributed power module power supply management system, battery power supply.
Five: noise reduction
Effectively able to reduce noise.