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Backup battery system for a portable electronic device

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent

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Battery charging controller

Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate

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Bi-directional AC or DC voltage regulator

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Bi-directional buck/boost DC/DC converter

Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Patent

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Bi-directional DC/DC power converter having a neutral terminal

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Bias voltage converter

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Biasing system and method for low voltage DC—DC...

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Bidirectional buck boost converter

Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Patent

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Bidirectional DC-DC converter and power supply apparatus...

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Bidirectional energy management system independent of...

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Bidirectional voltage regulator sourcing and sinking current...

Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate

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Bipolar shunt regulator

Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate

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Board mountable power supply module with multi-function...

Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate

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Boost and up-down switching regulator with synchronous...

Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate

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Boost circuit which includes an additional winding for...

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Boost circuit with normally off JFET

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Boost converter

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Boost converter

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent

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Boost converter circuit having selectable modes

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Reexamination Certificate

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Boost converter power supply with reduced losses, control circui

Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent

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