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| Number | Title | Issue Date |
| 8169201 | Output compensator for a regulator An output compensator for a regulator is provided that can improve the dynamic response of a regulator, and which does not require the redesigning of the power conversion stage or control stage of the regulator, but simple circuit connection of the compensator circu... | 05/01/2012 |
| 8164315 | Power supply circuit When an output of an overall output terminal (18) of a power supply circuit (10) is switched from a series regulator section (14) to a switching regulator section (12), a fifth switch (55) is switched OFF, to temporarily open a fee... | 04/24/2012 |
| 8125201 | DC-DC converter for a low power electronic circuit The DC-DC converter (21) is for integration in a low power transceiver (100). The converter is able to supply an output voltage that is higher than the input voltage. The converter includes two distinct variable voltage regulator circuits (3 and... | 02/28/2012 |
| 8035359 | Apparatus and method for recovery of wasted power from differential drivers An apparatus and method for supplying power to circuits of an integrated circuit (IC) from the wasted power in low-swing high-speed differential line drivers used in the IC, is disclosed. In a high speed line driver the load resistors of the driver are connected to ... | 10/11/2011 |
| 8013580 | Controller for a power converter and method of operating the same A controller for use with a power converter including a switch configured to conduct to provide a regulated output characteristic at an output of the power converter, and method of operating the same. In one embodiment, the controller includes a linear control circu... | 09/06/2011 |
| 8004255 | Power supply for IGBT/FET drivers A power supply for IGBT/FET drivers (1) that provides separated, isolated power to each IGBT/FET driver in a system wherein the power supply (1) is connected to at least one voltage controller (16) having at least one line in main power connecto... | 08/23/2011 |
| 7855534 | Method for regulating a voltage using a dual loop linear voltage regulator with high frequency noise reduction A method for regulating a voltage using a linear voltage regulator is provided. The linear voltage regulator has a first circuit with a primary output node and a second circuit having first and second inverters electrically coupled to the primary output node. The me... | 12/21/2010 |
| 7812580 | Power supply apparatus having switchable switching regulator and linear regulator A control circuit is provided in which two power sources can be efficiently switched, for a power supply apparatus provided with a step down switching regulator and a linear regulator. A PWM controller generates a pulse width modulation signal with which a duty rati... | 10/12/2010 |
| 7808220 | Method and apparatus for a charge pump DC-to-DC converter having parallel operating modes According to one or more aspects of DC-to-DC voltage conversion as taught herein, a DC-to-DC converter selectively operates in a first mode wherein an included linear pass output circuit supplies the output power from the DC-to-DC converter, in a second mode wherein... | 10/05/2010 |
| 7791320 | Voltage regulator for use in nonvolatile semiconductor memory The invention relates to a voltage regulator for operation of a semiconductor memory device. In embodiments, the voltage regulator includes a standby regulator unit and an active regulating unit. Embodiments of the invention decouple the operation of the standby reg... | 09/07/2010 |
| 7782030 | Step-down converter The step-down converter includes: a switch; an inductor; a rectifier; a smoothing unit; and a current bypass circuit, wherein when the current flowing toward the inductor exceeds a predetermined value, the current bypass circuit forms a path through which the curren... | 08/24/2010 |
| 7759915 | System with linear and switching regulator circuits An apparatus comprises a circuit having a power supply node and a linear regulator configured to provide a regulated voltage at the power supply node of the circuit. The apparatus further comprises a switching regulator configured to provide input power to the linea... | 07/20/2010 |
| 7759917 | Power supply unit and portable apparatus using the same A power supply unit comprises a series regulator and a switching DC-DC converter controlled by a PWM signal and connected in parallel with the series regulator, which are switchably enabled by a mode instruction signal depending on the magnitude of a load current. I... | 07/20/2010 |
| 7759916 | Regulator with device performance dynamic mode selection A voltage regulator device and accompanying methods are provided for providing efficient voltage regulation to an electronic device. Efficient regulator 400 receives an input voltage on VIN from a battery or some other power supply at node VIN... | 07/20/2010 |
| 7755336 | Integrated semiconductor component and method for controlling a supply voltage of a functional circuit in an integrated semiconductor component An integrated semiconductor component includes a functional circuit and a power control circuit configured to generate a supply voltage from an input voltage. The power control circuit may include a snitching controller and a control circuit configured to set a freq... | 07/13/2010 |
| 7746045 | Distributing time slots in parallel configured, switching power supplies A multi-phase power system including a plurality of Pulse Width Modulation (PWM) controllers is provided, including a first PWM controller and at least one second PWM controller. The first PWM controller is configured to generate at least one first output signal bas... | 06/29/2010 |
| 7733071 | Device for smoothing the load current supplied to a load The invention relates to smoothing a consumer electrical circuit supplied by a controllable current sink connected in parallel to the consumer. For this purpose, measuring voltage proportional to a load current supplied to the consumer is derived therefrom. A pick v... | 06/08/2010 |
| RE41270 | Semiconductor integrated circuit with selectable power supply according to different operation modes For an internal circuit having a first operation mode consuming a first operational current and a second operation mode consuming a second operational current, which is smaller than the first operational current, a first power source regulator for stepping down a pr... | 04/27/2010 |
| 7705571 | Reverse-connect protection circuit with a low voltage drop Current supply circuit for supplying a circuit with an internal supply voltage on the basis of an external supply voltage with an bipolar transistor for realizing reverse-connect protection for the circuit to be supplied, a supply current flowing through the bipolar... | 04/27/2010 |
| 7701181 | Power supply device and operations control method thereof A LDO and a switching regulator are connected in parallel with each other. The power supply device selects and actuates either of the LDO or the switching regulator in accordance with a switching signal from the outside. When making the switch from the LDO to the sw... | 04/20/2010 |
| 7688048 | 3-phase high power UPS A 3-phase uninterruptible power supply (UPS) including first, second, and third AC/DC converters, a DC/DC converter, and at least one DC/AC converter coupled to multiple electrical buses. The first, second, and third AC/DC converters each being configured to receive... | 03/30/2010 |
| 7688047 | Power circuit and method of rising output voltage of power circuit The power circuit includes a switching regulator part, a series regulator part and a control circuit part for controlling operation of the switching regulator and controlling the second predetermined voltage of the series regulator part. ... | 03/30/2010 |
| 7679343 | Power supply system and method for controlling output voltage A power supply system including an external power supply unit generating direct-current output voltage and an electronic device connected to the external power supply unit and operable on the output voltage of the external power supply unit. The external power suppl... | 03/16/2010 |
| 7663350 | External electrical energy supply for field device A field-device electronics for a field device. The field device electronics is supplied from an external electrical energy supply providing a supply voltage and delivering a variable supply current driven by the supply voltage. The field-device electronics includes ... | 02/16/2010 |
| 7646181 | Control circuit of DC-DC converter A control circuit of a DC-DC converter is provided. A mode selection section selects an Active Clamp Forward (ACF) or a Logic Link Control (LLC) mode. A soft start section generates a soft start signal in the ACF and LLC modes. A PWM comparison section compares a cu... | 01/12/2010 |
| 7626366 | Power supply circuit capable of reducing the number of external components An inverting negative voltage DC-DC power supply circuit comprises a first resistor having one end connected to an output terminal for converting a change in output voltage into a current. A zero-volt clamp circuit is connected to the other end of the first resistor... | 12/01/2009 |
| 7576521 | Switching regulator A switching regulator, has first and second switching regulator units, and first and second PLL circuit units that are provided in the first and second switching regulator units respectively, input first and second control pulse signals (PIN1, PIN2) re... | 08/18/2009 |
| 7550955 | Power supply circuit A disclosed power supply circuit (1) for receiving an input voltage at an input terminal (VDD), converting the input voltage to an output voltage and outputting the output voltage to a load (10) connected to an output terminal (OUT), comprises: a power... | 06/23/2009 |
| 7548043 | Power supply apparatus and method for providing voltage A power supply apparatus includes a current modulation unit, a voltage converting unit, a current detector, and a control unit. The current modulation unit is used for receiving an input voltage and a control signal, generating an output current and adjusting the va... | 06/16/2009 |
| 7521907 | Controller for a power converter and method of operating the same A controller for use with a power converter including a switch configured to conduct to provide a regulated output characteristic at an output of the power converter, and method of operating the same. In one embodiment, the controller includes a linear control circu... | 04/21/2009 |
| 7508176 | Controller for a DC to DC converter having linear mode and switch mode capabilities A controller for a DC to DC converter. The controller may comprise linear mode circuitry and switch mode control circuitry. The linear mode control circuitry may be capable of providing a first control signal to a controlled device of the DC to DC converter. The con... | 03/24/2009 |
| 7508177 | Method and circuit for reducing regulator output noise A regulator circuit for reducing the output noise when regulators are switched includes a linear regulator and a switching regulator. The linear regulator generates a first regulator voltage from an input voltage with a first feedback loop. The switching regulator g... | 03/24/2009 |
| 7504807 | Switching regulator with voltage step up or pass in standby mode and with voltage step up/step down in normal operation mode In a standby mode, a voltage step up DC/DC converter 5 supplies a power output voltage equal to or higher than a second set voltage which is lower than a first set voltage in a normal operating mode to a microcomputer (load) 1 with current supply perfo... | 03/17/2009 |
| 7501803 | Synchronized boost signal apparatus and method A method and apparatus to synchronize a boost signal. The apparatus includes a boost circuit and a synchronization circuit. The synchronization circuit is coupled to the boost circuit. The boost circuit generates an unsynchronized boost signal to boost a voltage sig... | 03/10/2009 |
| 7489118 | Method and apparatus for high-efficiency DC stabilized power supply capable of effectively reducing noises and ripples Methods and apparatuses for generating DC stabilized power are described. A DC stabilized power supply apparatus includes a voltage switching control circuit and first and second power supply circuits. The voltage switching control circuit generates first and second... | 02/10/2009 |
| 7432692 | Circuit and method for changing transient response characteristics of a DC/DC converter module A circuit for, and method of, changing transient response characteristics of a DC/DC converter module having an output rail pin and a trim pin and a distributed power conversion system incorporating the system or the method. In one embodiment, the system includes a ... | 10/07/2008 |
| 7432691 | Method and apparatus for controlling power drawn from an energy converter Methods, apparatus, media and signals for controlling power drawn from an energy converter to supply a load, where the energy converter is operable to convert energy from a physical source into electrical energy. Power drawn from the energy converter is changed when... | 10/07/2008 |
| 7420354 | Method and apparatus for controlling power drawn from an energy converter A computer readable, media and signals for controlling power drawn from an energy converter to supply a load, where the energy converter is operable to convert energy from a physical source into electrical energy. Power drawn from the energy converter is changed whe... | 09/02/2008 |
| 7400120 | Constant voltage control device A first output voltage Vcc is obtained via a first switching element from an external power supply, and a second output voltage Vme via a second switching element cascade-connected to the first switching element. The first switching element has a base current contin... | 07/15/2008 |
| 7397151 | Power supply unit and portable apparatus using the same A power supply unit comprises a series regulator and a switching DC-DC converter controlled by a PWM signal and connected in parallel with the series regulator, which are switchably enabled by a mode instruction signal depending on the magnitude of a load current. I... | 07/08/2008 |
