Laptop Power Adaptors (100W)

3750.gif (18371 bytes)

100W SM4960 Laptop Power Adapter..

 

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 and constant current limited. Continuous operation in current limit is allowed making them suitable for battery charging providing charge time is controlled. Connection to the battery is by a plug with a flying lead, that fits most standard cigar lighter sockets, and output is by flying lead terminated in a variety of connectors, be sure to let us know which connect you desire when ordering..

The converters are mainly designed for use with laptop 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 chassis ensures that earth currents do not flow.

BATTERY DRAIN: These converters draw about 1A at 12V or 0.5A at 24V I/P for every 10 watts of load applied.

 

Models available:

SM4960 12V i/p, 5V at 15A o/p.  SM4970 24V i/p, 5V at 15A o/p. SM4980 48V i/p, 5V at 15A o/p.
SM4961 12V i/p, 9V at 9.4A o/p. SM4971 24V i/p, 9V at 9.4A o/p. SM4981 48V i/p, 9V at 9.4A o/p.
SM4962 12V i/p, 12V at 8.5A o/p. SM4972 24V i/p, 12V at 8.5A o/p. SM4982 48V i/p, 12V at 8.5A o/p.
SM4963 12V i/p, 15V at 6.7A o/p. SM4973 24V i/p, 15V at 6.7A o/p. SM4983 48V i/p, 15V at 6.7A o/p.
SM4964 12V i/p, 18V at 5.6A o/p. SM4974 24V i/p, 18V at 5.6A o/p. SM4984 48V i/p, 18V at 5.6A o/p.
SM4965 12V i/p, 21V at 4.8A o/p. SM4975 24V i/p, 21V at 4.8A o/p. SM4985 48V i/p, 21V at 4.8A o/p.
SM4966 12V i/p, 24V at 4.2A o/p. SM4976 24V i/p, 24V at 4.2A o/p. SM4986 48V i/p, 24V at 4.2A o/p.
SM4967 12V i/p, 48V at 2.1A o/p. SM4977 24V i/p, 48V at 2.1A o/p. SM4987 48V i/p, 48V at 2.1A o/p.
SM4968 12V i/p, 13.8V at 7.2A o/p. SM4978 24V i/p, 13.8V at 7.2A o/p. SM4988 48V i/p, 13.8V at 7.2A o/p.
SM4969 12V i/p, 27.6V at 3.6A o/p. SM4979 24V i/p, 27.6V at 3.6A o/p. SM4989 48V i/p, 27.6V at 3.6A o/p.

Specification:

 

INPUT SPECIFICATION

 

12V TYPES

24V TYPES

48V TYPES

Battery:

12V Nominal car battery

24V Nominal car battery 

 48V Nominal car battery 

Voltage Range:

11-15V (10.5-16V Short term).

22-30V (21-32V Short term).

 44-56V (43.2-60V Short term).

Current, No Load:

0.1A Typical.

0.1A Typical.

 0.1A Typical.

Current Drawn Per 10W Load

1A.

0.5A.

 0.25A.

Input Fuse Rating:

15A

15A

 7.5A

Input to output isolation:

500Kohm +/- 63V

 

 

OUTPUT SPECIFICATION

Output variation for 0-90% load change (plus drop in cable)

0.5% max.

Output variation for 2V input change:

50mV max.

Output current limit(See note 2):

125% +/- 17%.

Output low frequency ripple:

200mV max.

 

 

 

GENERAL

Size:

111mm x 60mm x 30mm.

Weight:

0.38 Kg.

Storage Temperature:

-40 to +70C.

Operating Temperature:

-20 to +35C.

 

Specification Notes:    The main variation of output voltage with load is due to the resistance of the output cable. An internal potentiometer is available to adjust the output voltage over a range of ± 5% to compensate.

 

CAUTION: This converter is supplied on the basis of the user determining the suitability for the purpose for which it is to be used. Allow adequate ventilation to assist unit cooling. Removal of the input cigar plug will void warranty.

 

WARNING: Do not reverse input polarity. Do not expose to moisture. These converters are only suitable for use with vehicles having the negative of the battery connected to chassis. Not for life dependent use.