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Brokaw, US
A. Paul Brokaw, Tuscon, AZ US
| Patent application number | Description | Published |
|---|---|---|
| 20100182085 | Error amplifier structures - Error amplifier structures are provided to generate an error signal in response to the difference between an input signal (e.g., a feedback current) and a reference signal (e.g., a bias current). Amplifier embodiments generally include a reference generator and a differencing amplifier. In at least one embodiment, the error generator is arranged to generate first and second bias voltages that correspond to the bias current. In at least one embodiment, the differencing amplifier is configured to provide a reference current to an output node in response to the first bias voltage, provide a feedback current to the output node in response to the second bias voltage, and generate an error current in response to a voltage at the output node. The error amplifier structures are suited for use in various systems such as negative switching regulators. | 07-22-2010 |
A. Paul Brokaw, Tucson, AZ US
| Patent application number | Description | Published |
|---|---|---|
| 20080237630 | Semiconductor switch - A semiconductor switch comprises a PNPN structure arranged to provide an SCR-like functionality, and a MOS gate structure, preferably integrated on a common substrate. The switch includes ohmic contacts for the MOS gate, and for the cathode and gate regions of the PNPN structure; the anode contact is intrinsic. A fixed voltage is typically applied to an external node. The MOS gate structure allows current to be conducted between the external node and the intrinsic anode when on, and the PNPN structure conducts the current from the anode to the cathode when an appropriate voltage is applied to the gate contact. Regenerative feedback keeps the switch on once it begins to conduct. The MOS gate inhibits the flow of current between the external node and anode—and thereby turns off the switch—when off. When on, the MOS gate's channel resistance serves as a ballast resistor. | 10-02-2008 |
| 20090027123 | Controlled transconductance differential stage - A differential stage which uses a bias generator circuit to set the operating currents of the input stage FETs to make the incremental Gm primarily a function of a single resistor embedded in the biasing circuit, such that the input stage has a Gm which only gradually departs from nominal under overdrive, and continues to supply output currents which increase with an increasing differential input signal. | 01-29-2009 |
| 20090079405 | Linearized controller for switching power converter - A linearized controller to operate a switching power converter which includes an inductor having its first terminal coupled to a first voltage (V | 03-26-2009 |
| 20090167200 | SWITCHING POWER CONVERTER WITH CONTROLLED STARTUP MECHANISM - A switching power converter with a controlled startup mechanism includes a switching stage which provides a voltage V | 07-02-2009 |
| 20090302822 | Voltage regulator - A voltage regulator comprises first and second bipolar transistors operating at different current densities; a resistor is connected between their bases across which ΔV | 12-10-2009 |
| 20090302823 | Voltage regulator circuit - A voltage regulator comprises first and second bipolar transistors operating at different current densities; a resistance is connected between their bases across which ΔV | 12-10-2009 |
Paul Brokaw, Tucson, AZ US
| Patent application number | Description | Published |
|---|---|---|
| 20120133634 | APPARATUS, SYSTEM, AND METHOD FOR GENERATING A LOW POWER SIGNAL WITH AN OPERATIONAL AMPLIFIER - An amplifier, electronic display system, and a related method for generating a low power signal with an operational amplifier are disclosed herein. An embodiment of the present invention includes an amplifier, comprising an operational amplifier and a voltage converter. The operational amplifier includes an inverting input, a non-inverting input, an output, a first power supply input and a second power supply input, and is configured to generate an output signal in response to an input signal. The voltage is operably coupled with the first power supply input of the operating amplifier, and is configured to receive a first supply voltage and generate a second supply voltage to the first power supply input of the operational amplifier. The voltage of the second supply voltage is relatively closer to the expected operating voltage range of the output signal than is the first supply voltage. | 05-31-2012 |
Susanne Brokaw, Los Gatos, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080249850 | Providing Information About Content Distribution - Providing information about content distribution includes receiving a request for information regarding at least one content distribution activity that has previously been created to be performed in at least one of a plurality of media types. The method includes obtaining content distribution information regarding the at least one content distribution activity. The method includes presenting the content distribution information in a graphical user interface that is configured to display content distribution activities for each of the media types. Managing multiple media type distribution in an advertising campaign includes identifying plural distribution media types for inclusion in at least one campaign. The method includes setting distribution characteristics in each of the plural distribution media types for the campaign. The method includes presenting campaign information to a user that aggregates results over more than one of the plural distribution media types. | 10-09-2008 |
Thomas E. Brokaw, Reno, NV US
| Patent application number | Description | Published |
|---|---|---|
| 20120077253 | Methods and Systems for Controlled Illumination - Embodiments of the present invention relate generally to systems and methods for the collection of solar energy and the use thereof to generate an algal biomass capable of producing biofuels. In one implementation, the specific irradiance (e.g., moles photons per gram per day) is controlled to optimize algal growth and the production of polar lipids, non-polar lipids, and proteins. Optionally, non-photosynthetic portions of the light spectrum are diverted for uses other than illumination of the algae and/or are shifted in wavelength to fall within the photosynthetic spectrum | 03-29-2012 |
Tracy L. Brokaw, St. Louis, MO US
| Patent application number | Description | Published |
|---|---|---|
| 20110142213 | PROFILE MANAGEMENT SYSTEM INCLUDING USER INTERFACE FOR ACCESSING AND MAINTAINING PROFILE DATA OF USER SUBSCRIBED TELEPHONY SERVICES - Subscriber profile data is managed. The subscriber profile data is associated with a communications service subscribed to by a subscriber. A request to retrieve the subscriber profile data is received based upon a client sending a request for the subscriber profile data. The client hosts a user interface configured to allow the subscriber to obtain and update the subscriber profile data. The subscriber profile data is retrieved from the communications network in response to the request to retrieve the subscriber profile data. A request to update the subscriber profile data is received based upon the client sending a request to update the subscriber profile data. An update for the subscriber profile data is forwarded to the communications network based upon receiving the request to update the subscriber profile data. | 06-16-2011 |