DHY29-[48]24／10 type DC-DC converter principle diagram

Published:2011/12/4 22:04:00 Author:May | Keyword: DC-DC converter | From:SeekIC

At present, most communication equipments arealready unified and standard to use 48V DC power supply. But there are also few equipments continue using 24V DC power supply. Because the needed capacity of current is small, if we use rectifier toprovide power, for the purpose of guarantee incessant energy supply, we must use 24V accumulator battery. It is clear that it is not economy and occupation the space of equipment room. The suitable method to solve this problem is adopting 48V to 24V DC-DC converter. The diagram is DHY29-[48]24／10 type DC-DC converter principle diagram, its main performance index: (1) input DC voltage nominal value: 48V permit change range: 41V~51V (2) output DC voltage nominal value: 24V/10A permit change range: 21.6V~26.4V (3) precision of voltage regulation: ≤±1% (4) noise voltage phone balance weight noise voltage: ≤2mV, broadband noise voltage: ≤20mV (3.4kHz~30kHz) , peak to peak value noise voltage: ≤100mV, discrete frequency: ≤5mV (3.4kHz~150kHz) ≤3mV (150kHz~200kHz) ≤2mV (200kHz~500kHz) ≤1mV (0.5MHz~30MHz) (5) efficiency: ≥80% (6) Over voltage, under voltage, over current protection point and cut-off current. Over current: (29±1) V, under voltage: (21±1)V, over current: (12±1)V, cut-off current:10.5A~11A (7) The current equalization of parallel operation: ≤±5%



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