104results about How to "Power loss" patented technology

The present invention provides a load used for communication in a remote device having a dynamic communication load configuration. In one embodiment, the dynamic communication load configuration vanes as a function of a characteristic of power in the remote device. The remote device toggles between load configurations to communicate with the inductive power supply. A sensor in the remote device detects a characteristic of power in the remote device and configures the communication load based on the sensor output. In another embodiment, the remote device adjusts the dynamic communication load configuration in the remote device in response to a failure to receive a response from the inductive power supply.

The present invention provides a load used for communication in a remote device having a dynamic communication load configuration. In one embodiment, the dynamic communication load configuration vanes as a function of a characteristic of power in the remote device. The remote device toggles between load configurations to communicate with the inductive power supply. A sensor in the remote device detects a characteristic of power in the remote device and configures the communication load based on the sensor output. In another embodiment, the remote device adjusts the dynamic communication load configuration in the remote device in response to a failure to receive a response from the inductive power supply.

A plasma processing apparatus includes a first high frequency power for outputting a first high frequency, electrically connected to a first electrode disposed inside a depressurizable processing chamber; a heater power supply electrically connected to a heating element provided in the first electrode via filter circuits for reducing noise of the first high frequency. The plasma processing apparatus further includes air core primary inductors provided in primary stages of the filter circuits when seen from the heating element; and a grounded conductive case for surrounding or accommodating the primary inductors.

A wireless charging device comprises an electronic switch and a transmitting coil (L1) electrically connected with a power source in sequence. A control end of the electronic switch is connected with a transmitting control unit. The wireless charging device further comprises a current limiting resistance (R1) connected in serial with the transmitting coil. The wireless charging device further comprises a compensation capacitor (C1) connected in parallel with the transmitting coil. An insert total electromagnetic coupling structure is further employed for charging. Such wireless charging device is particularly suitable for electronic cigarette, with low cost, stable and reliable working status and high efficiency, and specific heat sink is not required.

Power gate placement techniques in three-dimensional (3D) integrated circuits (ICs) (3DICs) are disclosed. Exemplary aspects of the present disclosure contemplate consolidating power gating circuits or cells into a single tier within a 3DIC. Still further, the power gating circuits are consolidated in a tier closest to a voltage source. This closest tier may include a backside metal layer that allows a distance between the voltage source and the power gating circuits to be minimized. By minimizing the distance between the voltage source and the power gating circuits, power loss from routing elements therebetween is minimized. Further, by consolidating the power gating circuits in a single tier, routing distances between the power gating circuits and downstream elements may be minimized and power loss from those routing elements are minimized. Other advantages are likewise realized by placement of the power gating circuits according to exemplary aspects of the present disclosure.

A crankshaft of an internal combustion engine has journals provided with shaft oil passages for carrying the oil to crankpins, and guide grooves having parts in which the shaft oil passages open, respectively, and opening in the cylindrical surfaces of the journals, respectively. The guide grooves has downstream end parts into which the shaft oil passages open, respectively, and extend in a circumferential direction in which the crankshaft rotates from the downstream end parts, respectively. First half bearing members of bearings are provided in their bearing surfaces with oil grooves through which the oil is supplied to the guide grooves, respectively. Each of the oil grooves are diametrically opposite to each of the guide grooves. The oil grooves have an axial width (W5) smaller than the axial width (W3) of the guide grooves. Thus oil leakage from gaps between each of the bearings and each of the journals of the crankshaft is reduced and hence an oil pump having a small capacity can be used.

A power conversion apparatus includes a series circuit having a first switching element and a second switching element, the series circuit being connected to a DC power source in parallel, a resonant circuit including a capacitor and a primary winding of a transformer, the resonant circuit being connected to one of the first and second switching elements in parallel, an intermittent signal generator, a controller to control the start and stop of a switching operation of the first and second switching elements according to the intermittent signal, a current detector to detect a resonant current passing through the resonant circuit, and a timing generator to generate a timing signal when the detected resonant current satisfies a resonant condition. After the switching operation of the first and second switching elements is suspended according to the intermittent signal, the controller resumes the switching operation in response to the timing signal.

Providing a high frequency power amplifier circuit and a radio communication system which can control output power by a power voltage, produce sufficient output power in high regions of demanded output power and improve power efficiency in low regions of demanded output power. In a high frequency power amplifier circuit (RF power module) which comprises two or more cascaded FETs for amplification and controls output power by controlling power voltages of the FETs for amplification to gate terminals of which bias voltages of a predetermined level are applied, different transistors for power voltage control are provided for a last-stage FET for amplification and preceding-stage FETs for amplification. The transistors for power voltage control generate and apply the power voltage so that the preceding-stage FETs for amplification saturate when a demanded output level is relatively low.

The invention proposes a method of calculating power loss in an inductive power transfer system comprising a power transmitter (112) for transmitting power inductively to a power receiver (110) via transmitter coil (114) and receiver coil (104), the method comprising a step of obtaining, by power transmitter, time information for time alignment to enable the power transmitter to align the time of calculating the power loss with the power receiver; and a step of calculating power loss during power transfer according to the obtained time information and received power parameter communicated from the power receiver.

A plasma processing apparatus includes a first high frequency power for outputting a first high frequency, electrically connected to a first electrode disposed inside a depressurizable processing chamber; a heater power supply electrically connected to a heating element provided in the first electrode via filter circuits for reducing noise of the first high frequency. The plasma processing apparatus further includes air core primary inductors provided in primary stages of the filter circuits when seen from the heating element; and a grounded conductive case for surrounding or accommodating the primary inductors.