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Krellner
Jan Krellner, Chandler, AZ US
| Patent application number | Description | Published |
|---|---|---|
| 20090045786 | MODE TRANSITIONING IN A DC/DC CONVERTER USING A CONSTANT DUTY CYCLE DIFFERENCE - According to an exemplary embodiment, a method includes the step ( | 02-19-2009 |
| 20090174366 | Multiple Function Switching Regulator for Use in Mobile Electronic Devices - Multiple Function Switching Regulator for Use in Mobile Electronic Devices A mobile electronic device operable to employ a rechargeable battery as a power source includes a peripheral port suitable for connecting an external device to the mobile electronic device and a power management device operable in a first mode as a battery charger to recharge the battery from an external power source and further operable in a second mode as a boost converter to power the external device from battery supplied power where the boost converter and the battery charger are provided by a single switching-converter. | 07-09-2009 |
| 20100026203 | LED DRIVER WITH FRAME-BASED DYNAMIC POWER MANAGEMENT - Disclosed are example techniques for frame-based power management in a light emitting diode (LED) system having a plurality of LED strings. A voltage source provides an output voltage to drive the LED strings. An LED driver generates a frame timing reference representative of the frame rate or display timing of a series of image frames to be displayed via the LED system. An update reference is generated from the frame timing reference. The LED driver monitors one or more operating parameters of the LED system. In response to update triggers marked by the update reference, the LED driver adjusts the output voltage of the voltage source based on the status of each of the one or more monitored operating parameters (either from the previous update period or determined in response to the update trigger), thereby synchronizing the updating of the output voltage to the frame rate (or a virtual approximation of the frame rate) of the video being displayed. | 02-04-2010 |
| 20100156315 | LED DRIVER WITH FEEDBACK CALIBRATION - Power management in a light emitting diode (LED) system having a plurality of LED strings is disclosed. A voltage source provides an output voltage to drive a plurality of LED strings. An LED driver implements a feedback mechanism to monitor the tail voltages of the active LED strings to identify the minimum tail voltage and adjust the output voltage of the voltage source based on the lowest tail voltage. A loop calibration module of the LED driver calibrates the feedback mechanism of the LED driver based on a relationship between a digital code value used to generate a particular output voltage and another digital code value generated based on the minimum tail voltage resulting from the particular output voltage. | 06-24-2010 |
Jan Krellner, Laguna Niguel, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110181256 | Current Controlled Current Source, and Methods of Controlling a Current Source and/or Regulating a Circuit - Current sources, systems including the current source, and methods for regulating and/or controlling a circuit using the current source. The current source is generally configured to (i) receive a reference current, a bias voltage and a feedback/input current and (ii) provide an output current. The systems generally include the current source, a circuit directly or indirectly receiving the output current, a bias source/generator configured to provide the bias voltage, and a current reference configured to sink or source a predetermined amount of current from or to the output current. The method generally includes (a) applying a bias voltage to the current source, the current source receiving an input current and providing an output current; (b) sinking or sourcing a reference current from or to the output current; (c) applying the output of the current source directly or indirectly to a regulated circuit; and (d) providing the input current from the regulated circuit. | 07-28-2011 |
Theodore J. Krellner, Emporium, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20090206264 | INFRA-RED TEMPERATURE SENSOR - An infra-red temperature sensor for sensing the temperature of a medium includes a housing; a thermal infra-red sensor element having a predetermined field of view and disposed in the housing; and a diaphragm closing the housing spaced along an axis from and in the field of view of the thermal sensor element for absorbing on its outer surface heat from the medium and emitting radiation from its inner surface to the thermal sensor element representative of the temperature of the medium. | 08-20-2009 |
Theodore Joseph Krellner, Emporium, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20110025581 | ANTENNA ASSEMBLY - An antenna configured so as to use a transmitting or receiving element as the center conductor of a connector interface, which can connect to other connectors such as coaxial cable connectors. In one embodiment, the antenna comprises an antenna body that has an antenna connector configured as a reverse polarity connector. The reverse polarity connector comprises features which can position the transmitting or receiving element in direct contact with the center conductor of a mating cable. | 02-03-2011 |