US 7,443,990 B2Granted

Voltage biased capacitor circuit for a loudspeaker

OwnerDaniel A. Chattininventor

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Abstract

A voltage biased capacitor circuit (10) for a loudspeaker (14′) includes at least two audio circuit capacitors (32A, 32B) wired in series either on one of an audio connector or between audio connectors (16A′, 16B′). A direct current voltage source (34) is wired in electrical communication with the audio circuit capacitors (32A, 32B) for transmitting through direct current voltage connectors (36A, 36B) a direct current to provide a bias voltage to the audio circuit capacitors (32A, 32B). At least one resistor (37) is secured between the audio circuit capacitors (32A, 32B) and the voltage source (34), to prevent dissipation of an audio signal through the resistor (37) and direct current voltage connectors (36A, 36B). A voltage source capacitor (40) is also wired between the voltage source (34) and the audio connectors (16A′ 16B′) to stabilize the direct current transmitted to the capacitors (32A, 32B).

Claims8

Dependent claims

A voltage biased capacitor circuit (30) for a loudspeaker, comprising:

a. an amplifier (12′);
b. at least one loudspeaker (14′);
c. a pair of audio connectors (16A′, 16B′) electrically connected between the amplifier (12′) and the loudspeaker (14′) for transmitting an audio signal between the amplifier (12′) and the loudspeaker (14′);
d. at least two audio circuit capacitors (32A, 32B) wired in series either on one of the audio connectors or between the audio connectors (16A′, 16B′);
e. a direct current voltage source (34) wired in electrical communication with the audio circuit capacitors (32A, 32B) for transmitting through direct current voltage connectors (36A, 36B) a direct current to provide a bias voltage to the audio circuit capacitors (32A, 32B);
and,
f. at least one direct current resistor (37) secured between the audio circuit capacitors (32A, 32B) and the direct current voltage source (34), the resistor (37) having a resistance value sufficient to prevent dissipation of the audio signal from the audio connectors (16A′, 16B′) through the resistor (37) and direct current voltage connectors (36A, 36B).

4 more elements

Dependencies are inferred from the claim text.