Patent application number | Description | Published |
20130256834 | BACK-SIDE MOM/MIM DEVICES - Back-side MOM/MIM structures are integrated on a device with front-side circuitry. Embodiments include forming a substrate having a front side and a back side that is opposite the front side, the substrate including circuitry on the front side of the substrate; and forming a metal-oxide-metal (MOM) capacitor, a metal-insulator-metal (MIM) capacitor, or a combination thereof on the back side of the substrate. Other embodiments include forming a through-silicon via (TSV), in the substrate, connecting the MOM capacitor, the MIM capacitor, or a combination thereof to the circuitry on the front side of the substrate. | 10-03-2013 |
20140035155 | DEVICE WITH INTEGRATED POWER SUPPLY - Semiconductor devices and methods for forming a semiconductor device are disclosed. The semiconductor device includes a die. The die includes a die substrate having first and second major surfaces. The semiconductor device includes a power module disposed below the second major surface of the die substrate. The power module is electrically coupled to the die through through silicon via (TSV) contacts. | 02-06-2014 |
20140264235 | NON-VOLATILE MEMORY DEVICE WITH TSI/TSV APPLICATION - Memory devices and methods for forming the device are disclosed. The device includes a substrate having an array surface and a non-array surface and a memory array having a plurality of memory cells interconnected by first conductors in a first direction and second conductors in a second direction. The memory array is disposed on the array surface of the substrate. The device further includes through silicon via (TSV) contacts disposed in the substrate. The TSV contacts extend from the array surface to the non-array surface, enabling electrical connections to the array from the non-array surface. | 09-18-2014 |
20150187647 | THROUGH VIA CONTACTS WITH INSULATED SUBSTRATE - Device and a method of forming a device are disclosed. The method includes providing a crystalline-on-insulator (COI) substrate. The COI substrate includes at least a base substrate over a buried insulator layer. Through via (TV) contacts are formed within the substrate. The TV contact extends from a top surface of the base substrate to within the buried insulator layer. Upper interconnect levels are formed over the top surface of the base substrate. A lower redistribution (RDL) is formed over a bottom surface of the base substrate. The buried insulator layer corresponds to a first RDL dielectric layer of the lower RDL and protects the sidewalls of the TV contacts. | 07-02-2015 |
20150187700 | RELIABLE INTERCONNECTS - Semiconductor device and method for forming a semiconductor device are presented. The method includes providing a substrate prepared with intermediate dielectric layer having interconnect levels. The interconnect levels include M | 07-02-2015 |
Patent application number | Description | Published |
20090284321 | Temperature and Process Independent Voltage Controlled Oscillator Circuit - Techniques for voltage controlled oscillator (VCO) circuits that are independent of temperature and process variations are described herein. | 11-19-2009 |
20100039836 | Novel Utilization of a Multifunctional Pin to Control a Switched-Mode Power Converter - An embodiment of the invention relates to a power converter including a resistor divider with an internal node to sense an input line voltage. The internal node is operable as a multifunctional pin. A controller compares a feedback voltage dependent on a power converter output characteristic to a current-sense signal including an offset dependent on a voltage of the internal node to control entry and exit of the power converter from burst mode operation. The node may be employed to manage power converter operation by sensing or controlling its voltage to signal operation in a standby or burst mode, to sense the input line voltage, to enable an external system to signal shutdown to the power converter, and to enable the power converter to signal a delayed restart condition to the external system. | 02-18-2010 |
20100061124 | System and Method for Power Conversion - A system and method for operating power supplies. A method comprises altering a current sense (CS) signal, turning off a switch of the converter in response to a determining that the CS signal is greater than or equal to a first threshold, and leaving on the switch of the converter in response to a determining that the CS signal is less than the first threshold. | 03-11-2010 |
20100066337 | Novel Utilization of a Multifunctional Pin Combining Voltage Sensing and Zero Current Detection to Control a Switched-Mode Power Converter - An embodiment of the invention relates to a power converter including an inductor coupled in series with a power switch and a resistor coupled to a winding of the inductor. Input and output power converter voltages including an input brownout condition or an output overvoltage condition are estimated, and the output voltage may be regulated, by sensing a current in the resistor. An input current waveform can thereby be controlled to replicate substantially the input voltage waveform. The controller adjusts an on time and terminates an off time of the power switch by sensing respectively a current and a change of current in the resistor. The controller may sense a current flowing in the resistor to select a line voltage range of the input voltage to the power converter. The controller may estimate an input current to the power converter employing the current flowing in the resistor. | 03-18-2010 |
20110085359 | ADAPTIVE FREQUENCY JITTER FOR CONTROLLER - In order to convert an input power to one or more DC power levels that are provided to an output load, some aspects of the present disclosure relate to techniques for driving a switching regulator as a function of a pulsed voltage signal. In particular, this pulsed voltage signal is provided substantially at a target frequency, but exhibits frequency jitter that causes the pulsed voltage to vary slightly from the target frequency in time. The frequency jitter has a frequency range that varies as a function of the output load. | 04-14-2011 |
20110267844 | Controller for a Resonant Switched-Mode Power Converter - An embodiment of the invention relates to an LLC power converter including a controller configured to regulate an output characteristic of the power converter by controlling a power converter switching frequency. In a first mode of operation, the controller turns off a secondary-side power switch earlier than a turn-off time of a primary-side power switch by a time difference that is controlled by a resistor coupled to an external circuit node. In a second mode of operation, the controller turns on a secondary-side power switch at substantially the same time as the primary-side power switch, and turns off the secondary-side power switch after a maximum on time that is a nonlinear function of a load current of the power converter. The nonlinear function is a substantially constant function of the load current for a value of the load current higher than a threshold value. | 11-03-2011 |
20120033453 | Controller for a Resonant Switched-Mode Power Converter - In accordance with an embodiment, a switch controller for a switched-mode power supply includes an oscillator, an advance timing generator, and a dead zone generator. The advance timing generator generates an advance timing output pulse having a first pulse width that is asserted when the oscillator reaches a first phase. The dead zone generator produces a dead zone output having a second pulse width when the advance timing output pulse is de-asserted. This dead zone output pulse is coupled to a freeze input of the oscillator that freezes the phase accumulation of the oscillator when asserted. The controller also has a primary switch logic circuit that produces primary switch drive signals having a dead zone coincident with the dead zone output, and a secondary switch logic circuit that generates a secondary switch drive signal that is de-asserted when the advance timing output pulse becomes asserted. | 02-09-2012 |
20120033458 | System and Method for Power Conversion - A system and method for operating power supplies. A method comprises altering a current sense (CS) signal, turning off a switch of the converter in response to a determining that the CS signal is greater than or equal to a first threshold, and leaving on the switch of the converter in response to a determining that the CS signal is less than the first threshold. | 02-09-2012 |
20120250378 | Burst-Mode Operation of a Switching Converter - Disclosed is a method for driving a switching element in a switching converter in the burst mode and a controller for a switch in switching converter. | 10-04-2012 |
20140268918 | LED Power Supply - A method can be used for controlling the switching operation of a switching power converter that includes a semiconductor switch coupled in series to an inductor. The switching power converter consumes an input current from a power supply and provides an output current to a load. In each switching cycle a switch-on time instant is detected for the semiconductor switch. The semiconductor switch is closed thus enabling, at the detected switch-on time instant, the input current passing through the semiconductor switch. The semiconductor switch is opened after a desired on-time, during which the input current rises from zero to a peak value, has passed. A time interval is detected, in which the instantaneous output current is not zero. A first value that represents the peak of the input current is obtained during the on-time. | 09-18-2014 |
20150048677 | MULTI-FUNCTION PIN FOR LIGHT EMITTING DIODE (LED) DRIVER - Techniques are described for a multi-function pin of a light emitting diode (LED) driver. The techniques utilize this multi-function pin for switching current that flows through one or more LEDs, as well as for charging the power supply of the LED driver. The techniques further utilize this multi-function pin to determine whether the voltage at an external transistor is beginning to oscillate, and utilize this multi-function pin to determine whether the current through the one or more LEDs has fully dissipated to an amplitude of zero. | 02-19-2015 |
20150048678 | MULTI-FUNCTION PIN FOR LIGHT EMITTING DIODE (LED) DRIVER - Techniques are described for a multi-function pin of a light emitting diode (LED) driver. The techniques utilize this multi-function pin for switching current that flows through one or more LEDs, as well as for charging the power supply of the LED driver. The techniques further utilize this multi-function pin to determine whether the voltage at an external transistor is beginning to oscillate, and utilize this multi-function pin to determine whether the current through the one or more LEDs has fully dissipated to an amplitude of zero. | 02-19-2015 |
20150366007 | PROPAGATION DELAY COMPENSATION FOR FLOATING BUCK LIGHT EMITTING DIODE (LED) DRIVER - Devices, systems, and methods for improving a current spread of a light emitting diode (LED). Some aspects including a peak detector and a variable gain amplifier coupled to the peak detector and configured to amplify an output of the peak detector. The variable gain amplifier controlled by a gain selector, coupled to the variable gain amplifier by varying the gain of the variable gain amplifier based on an on time of a signal. | 12-17-2015 |
Patent application number | Description | Published |
20080278225 | METHOD AND APPARATUS FOR REGULATING POWER IN A FLYBACK CONVERTER - An integrated circuit includes an operational amplifier configured to receive a current sense voltage (V | 11-13-2008 |
20140293660 | Switched Mode Power Supply - A switching power converter includes an inductor coupled to a terminal operably supplied with an input voltage. A semiconductor switch is coupled to the inductor and configured to enable and disable an input current passing through the inductor in accordance with a drive signal. A current sense circuit is coupled to the inductor or the semiconductor switch and is configured to generate a current sense signal representing the input current passing through the inductor or the semiconductor switch. A control circuit receives the current sense signal and is configured to: close the semiconductor switch regularly in accordance with a clock frequency, to integrate the current sense signal thus providing an integrated current sense signal to compare the integrated current sense signal with a threshold that is a function of the input voltage. | 10-02-2014 |
20150230303 | UNIVERSAL INPUT AND WIDE OUTPUT FUNCTION FOR LIGHT EMITTING DIODE (LED) DRIVER - Techniques are described for controlling an amount of current flowing through one or more light-emitting-diodes (LEDs), without sensing input and/or output voltage, so that the amount of current flowing through the one or more LEDs is approximately equal to a target current level. The techniques provide for coarse and fine tuning of the amount of time a transistor, through which the current flows, is turned on to control the amount of current flowing through the one or more LEDs. | 08-13-2015 |
20150280573 | System and Method for a Switched-Mode Power Supply - In accordance with an embodiment, a method of operating a switched-mode power supply includes synchronously rectifying a current in a secondary side of the switched-mode power supply by detecting a voltage drop of a secondary winding of a transformer and activating a semiconductor switch coupled to the secondary winding when the voltage drop is detected. The method also includes determining a digital signal transmitting the digital signal to a controller coupled to a primary winding of the transformer by switching the semiconductor switch in accordance with the digital signal | 10-01-2015 |
20150280574 | System and Method for a Switched-Mode Power Supply - In accordance with an embodiment, a method of operating a switched-mode power supply includes turning on a semiconductor switch coupled to a primary winding of a transformer for a first time period of a first cycle, turning off the semiconductor switch for a second time period of the first cycle, detecting a change in slew rate of a voltage at an output node of the semiconductor switch, determining a switch turn-on time based on detecting the change in the slew rate, and turning on the semiconductor switch at the determined switch turn-on time for a first time period of a second cycle. | 10-01-2015 |
20150280584 | System and Method for a Switched-Mode Power Supply - In accordance with an embodiment, a method of operating a switched-mode power supply includes detecting a voltage decrease in a secondary winding of a transformer by detecting a first voltage transient using a sensor capacitively coupled to the secondary winding of the transformer. A secondary switch coupled to the secondary winding of the transformer is turned on based on when the first voltage transient is detected. | 10-01-2015 |
20150295494 | System and Method for a Switched-Mode Power Supply - In accordance with an embodiment, a method of operating a switched-mode power supply includes receiving power from an input node via a first transistor, providing a first portion of the received power to a load via a switching transistor having a first terminal coupled to the first transistor and a second terminal coupled to the load via a series resistor and a series inductor, measuring a current through the load, measuring comprising monitoring a voltage across the series resistor; and controlling an average current through the load by switching on and switching off the switching transistor according to the measured current. | 10-15-2015 |