AUDIO POWER CIRCUIT AND METHOD

• Main Authors: See, Joo Yih, Yeoh, Chen Kok, Tan, Chin Seng
• Format: Patent
• Language: English
• Published: 31.05.2018
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERATION; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS; SYSTEMS FOR STORING ELECTRIC ENERGY

An apparatus and method for controlling an audio power circuit. The audio power circuit includes an audio amplifier having a power input and a speaker connected to the audio amplifier. The audio power circuit also includes a control circuit configured to be connected to a battery and the power input and to control a supply of power to the power input. The audio power circuit further includes a thermal protection circuit connected between the audio amplifier and the speaker, the thermal protection circuit configured to generate a thermal protection signal and provide the same to the control circuit, wherein the control circuit is further configured to control the supply of power based on the thermal protection signal.