DISPOSITIVO DI COMANDO ELETTRONICO PER UN MOTORE ELETTRICO, SPECIALMENTE MOTORE EC
An electronic control device for an electric motor (10), particularly an electrically commutated (EC) motor, whose motor windings (11 to 13), in order to control the winding current, are connected in series with respective control transistors (15 to 17) whose control connections are charged by contr...
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| creator | ALBRECHT JOERG SOELLNER MICHAEL WEHBERG JOSEF |
| description | An electronic control device for an electric motor (10), particularly an electrically commutated (EC) motor, whose motor windings (11 to 13), in order to control the winding current, are connected in series with respective control transistors (15 to 17) whose control connections are charged by control pulses which are triggered by commutation signals and which have a predeterminable pulse-duty factor (block control). At the same time, the control device varies the amplitudes of the control pulses to control and permit the operation of the control transistors (15 to 17) in their amplifying range (linear control). Block control dominates in the upper rpm range in order to improve efficiency with respect to pure linear control, and linear control dominates in the lower rpm range in order to prevent severe current peaks, and hence an increased noise development that would occur with pure block control. |
| format | Patent |
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At the same time, the control device varies the amplitudes of the control pulses to control and permit the operation of the control transistors (15 to 17) in their amplifying range (linear control). 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At the same time, the control device varies the amplitudes of the control pulses to control and permit the operation of the control transistors (15 to 17) in their amplifying range (linear control). Block control dominates in the upper rpm range in order to improve efficiency with respect to pure linear control, and linear control dominates in the lower rpm range in order to prevent severe current peaks, and hence an increased noise development that would occur with pure block control.</description><subject>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</subject><subject>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAhy8QwO8A_2DPEM81dw8VRw9vd19HPxV3D1cQ0JCfL383T2VwhwDVII9VPw9Q_xD3KFygDFdRSCA1ydPR19fF39Qlzh0s48DKxpiTnFqbxQmptB3s01xNlDN7UgPz61uCAxOTUvtSTeM8TQyNzQ0MzSyZiwCgA2ei8H</recordid><startdate>19970527</startdate><enddate>19970527</enddate><creator>ALBRECHT JOERG</creator><creator>SOELLNER MICHAEL</creator><creator>WEHBERG JOSEF</creator><scope>EVB</scope></search><sort><creationdate>19970527</creationdate><title>DISPOSITIVO DI COMANDO ELETTRONICO PER UN MOTORE ELETTRICO, SPECIALMENTE MOTORE EC</title><author>ALBRECHT JOERG ; SOELLNER MICHAEL ; WEHBERG JOSEF</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_IT1271169B3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ita</language><creationdate>1997</creationdate><topic>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</topic><topic>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>ALBRECHT JOERG</creatorcontrib><creatorcontrib>SOELLNER MICHAEL</creatorcontrib><creatorcontrib>WEHBERG JOSEF</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ALBRECHT JOERG</au><au>SOELLNER MICHAEL</au><au>WEHBERG JOSEF</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DISPOSITIVO DI COMANDO ELETTRONICO PER UN MOTORE ELETTRICO, SPECIALMENTE MOTORE EC</title><date>1997-05-27</date><risdate>1997</risdate><abstract>An electronic control device for an electric motor (10), particularly an electrically commutated (EC) motor, whose motor windings (11 to 13), in order to control the winding current, are connected in series with respective control transistors (15 to 17) whose control connections are charged by control pulses which are triggered by commutation signals and which have a predeterminable pulse-duty factor (block control). At the same time, the control device varies the amplitudes of the control pulses to control and permit the operation of the control transistors (15 to 17) in their amplifying range (linear control). Block control dominates in the upper rpm range in order to improve efficiency with respect to pure linear control, and linear control dominates in the lower rpm range in order to prevent severe current peaks, and hence an increased noise development that would occur with pure block control.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | DISPOSITIVO DI COMANDO ELETTRONICO PER UN MOTORE ELETTRICO, SPECIALMENTE MOTORE EC |
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