MEAN WELL039s UHP Family is Upgraded with Over Temperature Automatic Derating FunctionNovember 15, 2019 by EE Power Editorial
MEAN WELL's UHP Family is Upgraded with Over Temperature Automatic De-rating Function.
The conduction-cooled UHP family is MEAN WELL's new generation of industrial control power supply, and its unique fanless design has been well received by the market since release. UHP family's 1000W and above products (UHP-1000/1500/2500 & PHP-3500) come with the Programmable Current (PC) function, which allows the output current to be modulated between 20% - 100% by applying an external 1~5VDC control signal.
One common application for the PC function is the charging application. Customers can use the PC function to control the charge rate of batteries. During the charging operation, if the temperature is too high, traditional over-temperature protection will shut-off the output power completely until the temperature cools down. The upgraded UHP-1000/1500/2500 & PHP-3500 will have automatic output power de-rating when operated with the PC function, which will effectively improve product reliability and still charge the batteries at a slower rate to maintain equipment operation.
The upgrade has been implemented to new productions of UHP-1000/1500/2500 starting November 6th, 2019 (Production Lot: W1912A). PHP-3500’s standard products already have this function built-in. All over-temperature incurred by the product upgrade will be absorbed by MEAN WELL, and the product price will not be adjusted. If you have any questions about the product upgrade, please reference the newest product specification sheet posted on the MEAN WELL public website or check with your MEAN WELL sales representative.