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O2micro Inc patents


Recent patent applications related to O2micro Inc. O2micro Inc is listed as an Agent/Assignee. Note: O2micro Inc may have other listings under different names/spellings. We're not affiliated with O2micro Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "O" | O2micro Inc-related inventors


Dual input power management method and system

A dual input power management method includes: monitoring whether a first input terminal has a power supply and whether a second input terminal has a power supply, and accordingly generating a first monitor signal and a second monitor signal; generating a priority signal based on the first monitor signal, the second monitor signal, and an enable signal, to determine an input priority of the first input terminal and the second input terminal; generating a control signal based on a feedback signal indicative of an output voltage and a reference signal; and regulating the output voltage based on the priority signal and the control signal.. . ... O2micro Inc

Devices with battery remaining capacity estimating functions

A device includes an interface and a processor. The interface receives information for a parameter indicative of a status of a battery. ... O2micro Inc

Controlling power delivery to a battery

A controller for controlling power delivery to a battery includes a first terminal that provides a first signal to enable a bypass path to deliver power from an interface to charge the battery, and includes a second terminal that provides a second signal to enable a conversion circuit to convert input power received at the interface to output power to charge the battery. The controller also includes circuitry that determines whether a first adapter or a second adapter is connected to the interface, generates the second signal if the second adapter is connected to the interface, generates the first signal and a request if the first adapter is connected to the interface, and provides the request to the first adapter through the interface. ... O2micro Inc

Charge/discharge switch control circuits for batteries

A charge/discharge switch control circuit for a battery pack includes a set of driving terminals and detection circuitry coupled to the driving terminals. The driving terminals provide driving signals to control a status of a switch circuit to enable charging or discharging of the battery pack. ... O2micro Inc

Charging managment method and system thereof

A charging management method includes: identifying a type of adapter that is connected to a device including a battery, wherein the type of adapter is one of at least a first type adapter and a second type adapter; if the first type adapter is connected, setting a bypass/ldo (low dropout regulator) module to a first control mode including one of a bypass mode and a hybrid control mode; and if the second type adapter is connected, setting the bypass/ldo module to a second control mode including the hybrid control mode, wherein the bypass/ldo module includes a first transistor and a second transistor.. . ... O2micro Inc

System and method for charging a battery pack

A battery pack receives a charging current from a charger via a power line. The battery pack includes a battery management unit and a transmitting unit. ... O2micro Inc

Power converters

A power converter for converting input power to output power includes a first transformer circuit, a second transformer circuit, and balance circuitry. The first transformer circuit includes a first primary winding for receiving a first part of the input power and a first secondary winding for generating a first part of the output power. ... O2micro Inc

Dc to dc converters and controllers thereof

In a controller for a dc to dc converter, pwm signal generating circuitry generates a set of pwm signals phase-shifted relative to one another, and controls states of the pwm signals according to a set of control signals. Each pwm signal of the pwm signals has an on-time state and an off-time state. ... O2micro Inc

Modules, systems, and methods for battery balancing

A battery system includes multiple battery cells having multiple cell voltages, and a balancing module. The battery module coupled to multiple battery cells and configured to specify a first voltage threshold according to an amount of a charging current supplied to the battery cells in constant current charging mode, and to initiate a balance check of the battery cells if the first voltage threshold is not satisfied by a cell voltage of the plurality of cell voltages.. ... O2micro Inc

Integrated device having multiple transistors

An integrated device includes a semiconductor well formed in an epitaxial layer, and a guard ring formed in the epitaxial layer and surrounding the semiconductor well. The semiconductor well and the guard ring include a type of semiconductor different from that of the epitaxial layer. ... O2micro Inc








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