초록 ▼

Apparatus to rapidly bulk charge a lead acid battery used in a "standby" power supply unit (PSU), or similar equipment containing said function, such as in an alarm panel system, fire panel (system) etc., without increasing the output capacity of the regulated PSU, significantly increasing its dissi

Apparatus to rapidly bulk charge a lead acid battery used in a "standby" power supply unit (PSU), or similar equipment containing said function, such as in an alarm panel system, fire panel (system) etc., without increasing the output capacity of the regulated PSU, significantly increasing its dissipation, size or cost, or causing an unacceptable recharge time of (often) several days. The apparatus comprises minimal additional components to provide a bulk charge of approximately 70% capacity to a 65 Ahr battery within 14 hours, while only drawing an average current of approximately 0.4 amp from the regulated PSU.

대표청구항 ▼

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.] A circuit arrangement for rapidly charging a battery comprising:power supply means for providing a regulated voltage and an unregulated voltage;resistor means coupled between said regulated voltage an

[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.] A circuit arrangement for rapidly charging a battery comprising:power supply means for providing a regulated voltage and an unregulated voltage;resistor means coupled between said regulated voltage and a positive terminal of said battery for providing a current path to float charge said battery;switching means, coupled between said positive terminal of said battery and said unregulated voltage via a series resistor, for providing a current path to rapid bulk charge said battery in response to a control signal;said switching means comprises a control input for receiving said control signal, said control input being coupled to said regulated voltage via a current limiting resistor; anddiode means coupled between said unregulated voltage and a series regulator of said circuit arrangement for enabling said power supply means to operate in a float charge mode or in a rapid bulk charge mode in accordance with a predetermined value of said battery voltage.