General Description

Model MRC-1028 Multi Receiver Charger was designed for rapid charging and conditioning of NiCd battery powered portable audio receivers used in the leisure industry. It is based on the same circuit topology utilised in our CTR-1020 and NBC-1027 NiCd chargers. With an optimised nominal charge current of 1.5C, it is capable of charging up to 10 receivers in approximately 45 minutes from a completely discharged state. In everyday use charge times as short as 15 minutes may be achieved.   The unit differs from conventional chargers in that it employs a novel “burp” charge technique designed to eliminate memory effects associated with NiCd cells, help restore the condition and charge capacity of old batteries, maximise capacity in everyday use and to extend batteries’ operational lifetime. The technique utilises a strategic series of alternate charge and discharge pulses which carefully control both the internal bulk and localised cell chemistry around the electrodes during charging.   The MRC-1028 employs a multi-stage pulsed current charging regime which includes polling (automatic detection of battery connection and removal and charge initiation), soft start (to ease degraded or cold cells into a state suitable to accept fast charging), fast charge, topping charge and maintenance charge. Premature charge termination is eliminated through the use of a negative delta peak algorithm to determine the optimum termination point. It also incorporates detection of damaged cells which are unable to accept fast charging, and two safety timers. A fully automatic deep discharge-charge mode can be initiated for cycling of old battery packs which have lost their charge capacity due to extended use with conventional chargers. or new batteries to bring them into their full service capacity. Large coloured LEDs clearly indicate the various charge stages throughout the process.   The unit comes in a rugged aluminium desktop case with a hard paint finish. Receivers are dropped into slots in the top of the unit and contact is made through terminals on the bottom of the receivers. The design of this unit may be adapted to suit other portable receivers or transceivers both mechanically and electrically.   For further details on specification, special options and packaging, please see overleaf. For requirements not listed please contact us by e-mail or through our online enquiry form.

 

Part Number Allocation

MRC-1028   MRC : Product ID (Multi Receiver Charger) 1028 : Product number. ### : Variant designation       Typical part Number : ‘MRC-1028/001’   The MRC-1028 product number describes a generic item which can be tailored to specific applications, therefore a variant part number system is utilised instead of the configuration code system used for some of our standard products.

 

Outline Specifications

There is presently no data sheet for this product. Please contact us with details of your requirement.