Power amplifier control circuit, power supply control circuit and audio equipment
The invention relates to a power amplification control circuit of a power supply control circuit, the power supply control circuit and audio equipment. The power amplifier control circuit comprises a time delay circuit, a detection comparison circuit, a discharge circuit and an execution circuit. Wh...
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| creator | ZHOU YUEBING |
| description | The invention relates to a power amplification control circuit of a power supply control circuit, the power supply control circuit and audio equipment. The power amplifier control circuit comprises a time delay circuit, a detection comparison circuit, a discharge circuit and an execution circuit. Wherein the time delay circuit is connected with the standby power supply, and the time delay circuit is connected to the power amplifier through the execution circuit; the detection comparison circuit is connected with the standby power supply and the discharge circuit; the discharging circuit is connected with the time-delay circuit. In the power-on process, the time delay circuit is started in a time delay mode in a charging mode, the execution circuit is triggered to output a control signal to start the power amplifier after charging is completed, and power-on protection is conducted on the power amplifier. During power failure, the detection comparison circuit rapidly detects that the voltage of the standby powe |
| format | Patent |
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The power amplifier control circuit comprises a time delay circuit, a detection comparison circuit, a discharge circuit and an execution circuit. Wherein the time delay circuit is connected with the standby power supply, and the time delay circuit is connected to the power amplifier through the execution circuit; the detection comparison circuit is connected with the standby power supply and the discharge circuit; the discharging circuit is connected with the time-delay circuit. In the power-on process, the time delay circuit is started in a time delay mode in a charging mode, the execution circuit is triggered to output a control signal to start the power amplifier after charging is completed, and power-on protection is conducted on the power amplifier. During power failure, the detection comparison circuit rapidly detects that the voltage of the standby powe</description><language>chi ; eng</language><subject>AMPLIFIERS ; APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS ; BASIC ELECTRONIC CIRCUITRY ; CONTROL OR REGULATION THEREOF ; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; 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</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220701&DB=EPODOC&CC=CN&NR=114697828A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220701&DB=EPODOC&CC=CN&NR=114697828A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHOU YUEBING</creatorcontrib><title>Power amplifier control circuit, power supply control circuit and audio equipment</title><description>The invention relates to a power amplification control circuit of a power supply control circuit, the power supply control circuit and audio equipment. The power amplifier control circuit comprises a time delay circuit, a detection comparison circuit, a discharge circuit and an execution circuit. Wherein the time delay circuit is connected with the standby power supply, and the time delay circuit is connected to the power amplifier through the execution circuit; the detection comparison circuit is connected with the standby power supply and the discharge circuit; the discharging circuit is connected with the time-delay circuit. In the power-on process, the time delay circuit is started in a time delay mode in a charging mode, the execution circuit is triggered to output a control signal to start the power amplifier after charging is completed, and power-on protection is conducted on the power amplifier. 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The power amplifier control circuit comprises a time delay circuit, a detection comparison circuit, a discharge circuit and an execution circuit. Wherein the time delay circuit is connected with the standby power supply, and the time delay circuit is connected to the power amplifier through the execution circuit; the detection comparison circuit is connected with the standby power supply and the discharge circuit; the discharging circuit is connected with the time-delay circuit. In the power-on process, the time delay circuit is started in a time delay mode in a charging mode, the execution circuit is triggered to output a control signal to start the power amplifier after charging is completed, and power-on protection is conducted on the power amplifier. During power failure, the detection comparison circuit rapidly detects that the voltage of the standby powe</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | AMPLIFIERS APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRONIC CIRCUITRY CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER 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 |
| title | Power amplifier control circuit, power supply control circuit and audio equipment |
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