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Patent No. 6368227

Method of swinging on a swing

A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.

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Class 323/268 - Including plural final control devices


Subclass of Class 323 - Electricity: power supply or regulation systems
Definition: Subject matter wherein the system includes a plurality of
No. of patents: 336
Last issue date: 05/01/2012


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NumberTitleIssue Date
8169201Output 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
8164315Power 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
8125201DC-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
8035359Apparatus 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
8013580Controller 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
8004255Power 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
7855534Method 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
7812580Power 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
7808220Method 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
7791320Voltage 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
7782030Step-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
7759915System 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
7759917Power 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
7759916Regulator 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
7755336Integrated 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
7746045Distributing 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
7733071Device 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
RE41270Semiconductor 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
7705571Reverse-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
7701181Power 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
76880483-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
7688047Power 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
7679343Power 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
7663350External 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
7646181Control 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
7626366Power 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
7576521Switching 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
7550955Power 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
7548043Power 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
7521907Controller 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
7508176Controller 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
7508177Method 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
7504807Switching 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
7501803Synchronized 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
7489118Method 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
7432692Circuit 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
7432691Method 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
7420354Method 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
7400120Constant 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
7397151Power 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
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