Method and device for automatically switching and adjusting the

Details Method and device for automatically switching and adjusting the Method and device for automatically switching and adjusting the

1999-01-07

1999-12-07

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

320153, H01M 1044, H01M 1046

Patent

active

059989734

ABSTRACT:
A method for automatically switching and adjusting the load of a battery discharger by using PTC (positive temperature coefficient) units and resistive heating elements as the load. The automatic switching and adjustment is accomplished by the steps of selecting the number of operating PTC units with constant power by the user; selecting the number of operating resistive heating elements based on the detected current changes; and automatically micro-adjusting the current of other resistive heating elements to obtain a discharge with a constant current. The present invention further provide a device for implementing the method for automatically switching and adjusting the load of a battery discharger.

REFERENCES:
patent: 5661643 (1997-08-01), Blakely et al.
patent: 5744936 (1998-04-01), Kawakami

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