PWM SIGNAL GENERATION CIRCUIT AND MOTOR DRIVE CIRCUIT

PROBLEM TO BE SOLVED: To provide a PWM signal generation circuit and a motor drive circuit.SOLUTION: The PWM signal generation circuit of the present invention has: a PTAT (Proportional To Absolute Temperature) voltage generation section which generates an absolute-temperature proportioned voltage w...

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Bibliographische Detailangaben
1. Verfasser:	LEE SOO-WOON
Format:	Patent
Sprache:	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 BASIC ELECTRONIC CIRCUITRY CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS PULSE TECHNIQUE REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a PWM signal generation circuit and a motor drive circuit.SOLUTION: The PWM signal generation circuit of the present invention has: a PTAT (Proportional To Absolute Temperature) voltage generation section which generates an absolute-temperature proportioned voltage which is proportional to the absolute temperature; a reference wave signal generation section which generates a preset reference wave signal; and a PWM signal generation section which compares the absolute-temperature proportioned voltage and the reference wave signal to generate a pulse width modulation (hereinafter referred to as "PWM") signal. The PTAT voltage generation section can adjust the absolute-temperature proportioned voltage with a control signal.