BATTERY OPERATED DEVICES

A battery operated device such as a road stud comprises a micro-controller, a battery, and a light source. The micro-controller is configured to operate the battery to provide a train of power pulses to the light source, and each power pulse has a characteristic pulse period and a characteristic dut...

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Main Authors BAO YANJIE, WANG DAOHONG, CHENG KA WAI ERIC, YAU WAI PANG, TAM SIU CHUNG
Format Patent
LanguageEnglish
Published 18.10.2012
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Abstract A battery operated device such as a road stud comprises a micro-controller, a battery, and a light source. The micro-controller is configured to operate the battery to provide a train of power pulses to the light source, and each power pulse has a characteristic pulse period and a characteristic duty cycle comprising an on-cycle and an off-cycle. The micro-controller is turned on during the on-cycle and turned into a power saving or sleep mode during the off cycle. Setting the micro-controller into the power saving or sleep mode during the off cycle of the power pulse means substantial battery power saved to extend the operation time per charging of the battery.
AbstractList A battery operated device such as a road stud comprises a micro-controller, a battery, and a light source. The micro-controller is configured to operate the battery to provide a train of power pulses to the light source, and each power pulse has a characteristic pulse period and a characteristic duty cycle comprising an on-cycle and an off-cycle. The micro-controller is turned on during the on-cycle and turned into a power saving or sleep mode during the off cycle. Setting the micro-controller into the power saving or sleep mode during the off cycle of the power pulse means substantial battery power saved to extend the operation time per charging of the battery.
Author YAU WAI PANG
CHENG KA WAI ERIC
WANG DAOHONG
BAO YANJIE
TAM SIU CHUNG
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YAU WAI PANG
CHENG KA WAI ERIC
WANG DAOHONG
BAO YANJIE
TAM SIU CHUNG
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Snippet A battery operated device such as a road stud comprises a micro-controller, a battery, and a light source. The micro-controller is configured to operate the...
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SubjectTerms ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
Title BATTERY OPERATED DEVICES
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