CUSTOM POWER DESIGN Handy Mains SM4450 빠른 시작 매뉴얼 - 페이지 2
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CUSTOM POWER DESIGN
ELECTRONICS CONSULTANTS PROVIDING CUSTOM DESIGN, DEVELOPMENT, TEST & SUPPORT
______________________________________________________________________________________________________________________________________________________________
Tel: + 44 (0)118 983 1222
______________________________________________________________________________________________________________________________________________________________
www.custompsudesign.com
USER GUIDE FOR 48 WATT BATTERY CONVERTERS
ALLOWS DIRECT POWERING OF NOTEBOOK COMPUTERS INCLUDING BATTERY CHARGING.
GENERAL: These small but powerful converters provide a source of stabilised low voltage
suitable for running many different items of equipment. Their output is ohmically isolated from the
system chassis and constant current limited. Continuous operation in current limit is allowed
making them suitable for battery charging. Connection to the system is by a 'cigar' plug (12 & 24V
Input) lead or just a flying lead (48V input), and output is by flying lead (5V - 12V units) or 2.5mm
concentric connector (13.8V - 48V units).
The converters are mainly designed for use with notebook computers that have two wire input.
These converters are current limited above a certain level of demand. The output isolation of the
converter from system ground ensures that earth currents do not flow.
CONNECTION:
Input: For 12V and 24V units, the converter just plugs into a cigar type socket, using the cable
mounted plug provided. Don't leave the converter plugged in when not in use. It will still slowly
discharge the battery. 48V input units must be directly wired to the 48V supply, fused at the battery
source with a 3.15A fuse. The input cable has a YELLOW sleeve fitted close to the case to identify
it. The RED wire connects to battery positive (+) and BLACK wire to battery negative (-).
Output: 12V output or below: Un-terminated cable. 13.8V output or more, 2.5mm 'barrel'
connectors, centre positive. Red wire or White stripe positive, Black wire negative. The warranty is
not affected if the purchaser fits a different suitably current rated connector.
BATTERY DRAIN: These converters take about 1A at 12V, 0.5A at 24V or 0.25A at 48V for
every 10 watts of load. Input current may reach 10A (12V), 5A (24V), 2.5A (48V).
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Registered in England & Wales, Number 2218478. Registered .Office: Bell House, Ashford Hill Road, Ashford Hill, Berks. RG19 8BB. VAT No. (GB) 944 0645 24
Unit 1,The Forge, Reading Road, Burghfield Common, Reading, RG7 3BL.
OHMICALLY ISOLATED AND CURRENT LIMITED.
OUTPUT
12V BATTERY
5V at 8.5A
9V at 5.0A
12V at 4.0A
15V at 3.2A
18V at 2.7A
21V at 2.3A
24V at 2.0A
48V at 1.0A
13.8V at 3.4A
27.6V at 1.7A
36.0V at 1.3A
A DIVISION OF SMET LTD
24V BATTERY
SM4450
SM4470
SM4451
SM4471
SM4452
SM4472
SM4453
SM4473
SM4454
SM4474
SM4455
SM4475
SM4456
SM4476
SM4457
SM4477
SM4458
SM4478
SM4459
SM4479
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48V BATTERY
SM3770
SM3771
SM3772
SM3773
SM3774
SM3775
SM3776
SM3777
SM3778
SM3779
SM3781
Document 4450E996 Issue 10.