OVERLOAD CONTROL FOR A POWER TOOL
Power tools including a housing, a motor, a power circuit supplying operating power to the motor through a triac, a speed sensor configured to detect a speed of the motor, a speed selector, and an electronic processor. The electronic processor is configured to determine a selected speed and set a pr...
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| creator | SELFORS, David H TRUMP, Brian |
| description | Power tools including a housing, a motor, a power circuit supplying operating power to the motor through a triac, a speed sensor configured to detect a speed of the motor, a speed selector, and an electronic processor. The electronic processor is configured to determine a selected speed and set a present conduction angle of the triac to an initial conduction angle corresponding to the selected speed. The electronic processor is also configured to determine whether the speed is decreasing and determine whether the present conduction angle is below a maximum conduction angle corresponding to the selected speed when the speed is decreasing. The electronic processor is further configured to increase the present conduction angle when the present conduction angle is below the maximum conduction angle and maintain the present conduction angle at the maximum conduction angle when the present conduction angle is at or above the maximum conduction angle. |
| format | Patent |
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The electronic processor is configured to determine a selected speed and set a present conduction angle of the triac to an initial conduction angle corresponding to the selected speed. The electronic processor is also configured to determine whether the speed is decreasing and determine whether the present conduction angle is below a maximum conduction angle corresponding to the selected speed when the speed is decreasing. The electronic processor is further configured to increase the present conduction angle when the present conduction angle is below the maximum conduction angle and maintain the present conduction angle at the maximum conduction angle when the present conduction angle is at or above the maximum conduction angle.</description><language>eng ; fre ; ger</language><subject>COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR ; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS ; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ; GENERATION ; HAND TOOLS ; MANIPULATORS ; PERFORMING OPERATIONS ; PORTABLE POWER-DRIVEN TOOLS ; TRANSPORTING</subject><creationdate>2023</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=20230118&DB=EPODOC&CC=EP&NR=3956107A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230118&DB=EPODOC&CC=EP&NR=3956107A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SELFORS, David H</creatorcontrib><creatorcontrib>TRUMP, Brian</creatorcontrib><title>OVERLOAD CONTROL FOR A POWER TOOL</title><description>Power tools including a housing, a motor, a power circuit supplying operating power to the motor through a triac, a speed sensor configured to detect a speed of the motor, a speed selector, and an electronic processor. The electronic processor is configured to determine a selected speed and set a present conduction angle of the triac to an initial conduction angle corresponding to the selected speed. The electronic processor is also configured to determine whether the speed is decreasing and determine whether the present conduction angle is below a maximum conduction angle corresponding to the selected speed when the speed is decreasing. The electronic processor is further configured to increase the present conduction angle when the present conduction angle is below the maximum conduction angle and maintain the present conduction angle at the maximum conduction angle when the present conduction angle is at or above the maximum conduction angle.</description><subject>COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR</subject><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>DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR</subject><subject>DYNAMO-ELECTRIC MACHINES</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</subject><subject>GENERATION</subject><subject>HAND TOOLS</subject><subject>MANIPULATORS</subject><subject>PERFORMING OPERATIONS</subject><subject>PORTABLE POWER-DRIVEN TOOLS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFD0D3MN8vF3dFFw9vcLCfL3UXDzD1JwVAjwD3cNUgjx9_fhYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxrgHGlqZmhgbmjibGRCgBANIMIcQ</recordid><startdate>20230118</startdate><enddate>20230118</enddate><creator>SELFORS, David H</creator><creator>TRUMP, Brian</creator><scope>EVB</scope></search><sort><creationdate>20230118</creationdate><title>OVERLOAD CONTROL FOR A POWER TOOL</title><author>SELFORS, David H ; TRUMP, Brian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3956107A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2023</creationdate><topic>COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR</topic><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>DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR</topic><topic>DYNAMO-ELECTRIC MACHINES</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</topic><topic>GENERATION</topic><topic>HAND TOOLS</topic><topic>MANIPULATORS</topic><topic>PERFORMING OPERATIONS</topic><topic>PORTABLE POWER-DRIVEN TOOLS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SELFORS, David H</creatorcontrib><creatorcontrib>TRUMP, Brian</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SELFORS, David H</au><au>TRUMP, Brian</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OVERLOAD CONTROL FOR A POWER TOOL</title><date>2023-01-18</date><risdate>2023</risdate><abstract>Power tools including a housing, a motor, a power circuit supplying operating power to the motor through a triac, a speed sensor configured to detect a speed of the motor, a speed selector, and an electronic processor. The electronic processor is configured to determine a selected speed and set a present conduction angle of the triac to an initial conduction angle corresponding to the selected speed. The electronic processor is also configured to determine whether the speed is decreasing and determine whether the present conduction angle is below a maximum conduction angle corresponding to the selected speed when the speed is decreasing. The electronic processor is further configured to increase the present conduction angle when the present conduction angle is below the maximum conduction angle and maintain the present conduction angle at the maximum conduction angle when the present conduction angle is at or above the maximum conduction angle.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR DYNAMO-ELECTRIC MACHINES ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING |
| title | OVERLOAD CONTROL FOR A POWER TOOL |
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