Battery power supply circuit which supplies correct power polari

Details Battery power supply circuit which supplies correct power polari Battery power supply circuit which supplies correct power polari

1995-03-08

1997-04-22

Kuntz, Curtis

Electrical audio signal processing systems and devices

Sound effects

Reverberators

363 63, 307127, H04R 2500

Patent

active

056235500

ABSTRACT:
A power supply circuit is set forth which overcomes the problems associated with incorrect battery insertion. The power supply circuit includes first and second battery terminals for electrical connection to the battery. The first and second battery terminals are connected to a first transistor switching circuit. The first transistor switching circuit is responsive to power from the battery to through-connect a negative polarity power signal therethrough irrespective of the polarity orientation of the battery. The first and second battery terminals are also connected to a second transistor switching circuit. The second switching circuit is responsive to power from the battery to through-connect a positive polarity power signal therethrough irrespective of polarity orientation of the battery. The negative and positive polarity power signals are available for connection to a load device, such as a hearing aid amplifier. The device is thereby provided with proper power polarity irrespective of the way in which the battery is inserted between the first and second battery terminals.

REFERENCES:
patent: 4423456 (1983-12-01), Zaidenweber
patent: 5210804 (1993-05-01), Schmid
Co-pending parent application USSN 08/407,465, filed Mar. 20, 1995.
Schematic drawing of Tom Lott, 1986.

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