Discharge protection circuit

A discharge protection circuit is used to discharge a full-bridge circuit of brushless DC fan comprising a control circuit. The control circuit outputs at least two mutually inverse control signals to the full-bridge circuit. The discharge protection circuit comprises a first impedance, a second imp...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG, YUEH-LUNG, CHO, YIIEH, WU, TODD, HSIAO, TUNG-HUNG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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 CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	A discharge protection circuit is used to discharge a full-bridge circuit of brushless DC fan comprising a control circuit. The control circuit outputs at least two mutually inverse control signals to the full-bridge circuit. The discharge protection circuit comprises a first impedance, a second impedance and a switch. The switch includes a first terminal, a second terminal and a third terminal connecting to the ground. The first terminal is coupled to the first impedance in series to receive one of the control signal for controlling the status of the switch. The second terminal is coupled to the second impedance in series and then connected to a input end of the other control signal of the full-bridge circuit, and then discharges the input end according to the status of the switch.