Programmable Power Supplies PMBus and CANBus Applications
MEAN WELL RPB and DRP SeriesPower supplies have had precise differences between generations, from rotary phones to smartphones, from traditional fuel vehicles to digitally controlled electric vehicles. In general, power supply management, including function control and status monitoring, is accomplished through three common methods.
To begin, output voltage programming is a feature that allows a user to change the output voltage of a power supply using an external DC source. Second, the most common method of displaying status is through the use of LED indicators. Third, the Power Good signal informs the user or controller that the output voltage of the power supply is ready. The preceding examples may meet the requirements of the majority of applications, but not in every case. With the advancement of modern technology and automation, the traditional method no longer meets the needs of users, who now need to process more information about the products at the same time.
Advantage: Because the protocol is open, developers can easily incorporate PMBus into their systems.
Disadvantage: Low immunity to electrical interference, making it only suitable for short-distance communication.
PMBus - Protocol Interface: SMBus 1.1 | Version PMBus 1.1 | Bus Speeds: 100KHz
The controller area network (CANBus), which employs the differential signaling method (CANH and CANL), was designed initially for the automotive industry to replace complex wiring. CANBus is becoming more popular in a variety of industries, including manufacturing and automation systems, due to its high immunity to electrical interference and ability to self-diagnose and repair data errors.
Advantage: Excellent resistance to electrical interference.
Disadvantage: MEAN WELL defines a portion of the protocol; modifications may be required when implementing to the end system.
CANBus - Physical Layer: 11898 | Data Link Layer: CAN2.0B | MEAN WELL Application Layer: Baud Rates: 250Kbps
Application: Automatic Guided Vehicle - PMBusModel : RPB-1600-48
Application: National Synchrotron Radiation Research Center - CANBusModel: DRP-3200-48 (Optional CANBus)
Programmable power supplies with communication function not only makes complex control and monitoring simple, they all are suitable for applications requiring intelligent control and monitoring.
These models are suitable for various applications, including RSP-1600/RSP-2000 and DPU-3200 for general applications, RCP-1600/RCP-2000 and DRP-3200 for cabinet applications, and UHP-1500/UHP-2500, PHP-3500/PHP-3500-HV for fan-less or water-cooled applications.
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MEAN WELL is the industry leader in the production of conventional AC/DC power supplies, LED drivers, DC/DC converters, and DC/AC inverters. As an industry pioneer, their products are renowned for their superior quality, dependability, and efficiency. Product copy and images provided by MEAN WELL.