Abstract: An oscillator circuit includes a first current generator circuit that generates a current complementary to absolute temperature and a second current generator that generates a current proportional to absolute temperature. A temperature slope control circuit adjusts slopes of the current complementary to absolute temperature and the current proportional to absolute temperature in a complementary fashion and adds the current complementary to absolute temperature to the current proportional to absolute temperature after slope control to produce a temperature independent current. A current control circuit adjusts magnitude of the temperature independent current to produce a magnitude adjusted temperature independent current. A current controlled oscillator generates an output signal as a function of the magnitude adjusted temperature independent current.

Abstract: Disclosed are amide compounds, preparation method and uses thereof, specifically, the compounds represented by formula I or pharmaceutically acceptable salts, wherein R1, R2, R3, R4, R5, Q, X and n are defined as in the description. Also disclosed are a method for preparing the compounds of formula I, a composition containing the compounds, and the uses of the same in the preparation of medicaments for regulating blood lipid and/or preventing gallstone. The compounds of formula I disclosed in the present invention have stability in vitro, good solubility in the pharmaceutical organic solvents and favorable bioavailability in animals.

Abstract: A video encoding method is provided. The video encoding method includes: obtaining a to-be-coded video frame; determining a current encoding mode according to current coding information and/or image feature information of the to-be-coded video frame; processing the to-be-coded video frame according to the current encoding mode to generate a current coded video frame; obtaining a current reference frame corresponding to the current coded video frame based on the current coded video frame being an inter frame; obtaining a corresponding processing reference frame according to resolution values of the current reference frame and the current coded video frame; and encoding the current coded video frame according to the processing reference frame to generate first coded data.

Abstract: An intra frame bit rate allocation method being performed by a computer device comprising at least one processor, includes when a current frame of picture is an intra frame in a specified frame sequence, pre-encoding the current frame of picture; calculating a corresponding intra frame encoding cost and an inter frame encoding cost of the pre-encoding; and allocating an intra frame bit rate according to the calculated intra frame encoding cost and the inter frame encoding cost.

Abstract: A wind power converter device is provided. The wind power converter device includes grid side converters, generator side converters and a DC bus module. Each of the grid side converters includes grid side outputs electrically coupled to a grid and a first and a second DC inputs. Each two of the neighboring grid side converters are connected in series at the second and the first DC inputs. Each of the generator side converters includes generator side inputs electrically coupled to a generator device and a first and a second DC outputs. Each two of the neighboring generator side converters are coupled in series at the second and the first DC outputs. The DC bus module is electrically coupled between the grid side converters and the generator side converters.

Abstract: A wind power converter device is provided. The wind power converter device includes grid side converters, generator side converters and a DC bus module. Each of the grid side converters includes grid side outputs electrically coupled to a grid and a first and a second DC inputs. Each two of the neighboring grid side converters are connected in series at the second and the first DC inputs. Each of the generator side converters includes generator side inputs electrically coupled to a generator device and a first and a second DC outputs. Each two of the neighboring generator side converters are coupled in series at the second and the first DC outputs. The DC bus module is electrically coupled between the grid side converters and the generator side converters.

Abstract: A wind power converter device is provided. The wind power converter device includes grid side converters, generator side converters and a DC bus module. Each of the grid side converters includes grid side outputs electrically coupled to a grid and a first and a second DC inputs. Each two of the neighboring grid side converters are connected in series at the second and the first DC inputs. Each of the generator side converters includes generator side inputs electrically coupled to a generator device and a first and a second DC outputs. Each two of the neighboring generator side converters are coupled in series at the second and the first DC outputs. The DC bus module is electrically coupled between the grid side converters and the generator side converters.

Abstract: In some implementations, a system includes a voltage regulating circuit and a compensation circuit. The voltage regulating circuit includes a pass element configured to provide a regulated voltage to a load. The compensation circuit is configured to adjust a variable resistance based on a current of the load, the variable resistance being coupled to a gate terminal of the pass element through a capacitor.

Abstract: An unloading mechanism for removing workpieces from a transporting film can include a bottom plate, a picking assembly, and a storage assembly. The picking assembly can include a driving member coupled to the bottom plate, a pressing member coupled to the driving member, and a picking member coupled to the pressing member. The pressing member can define a receiving hole along an axis. The picking member can include a connecting rod coupled to the bottom plate, and a suction member coupled to the connecting rod. The suction member can be coupled to the second end and protruding out of the pressing member. The storage assembly can include a base plate configured to support the transporting film, and a pressing plate stacked on the base plate and the transporting film.

Abstract: A wind power conversion system includes plural first converting circuits and a second converting circuit. The plural first converting circuits perform a power converting task, and include respective first generator-side terminals and respective first network-side terminals. The first generator-side terminals are electrically connected with a wind power generator. The first network-side terminals are electrically connected with corresponding secondary windings of an isolating transformer. The second converting circuit includes plural second generator-side terminals and a second network-side terminal. The second network-side terminal is electrically connected with the corresponding secondary winding of plural secondary windings of the isolating transformer. The second generator-side terminals are serially connected with the corresponding first generator-side terminals of the first converting circuits.

Abstract: An apparatus includes a differential amplifier. The differential amplifier includes a first side circuit configured to receive a first input signal, a second side circuit configured to receive a second input signal, and a resonant tank circuit coupled between the first and second side circuits. A first capacitor and first switch may be provided in series between a source and drain of a cascode transistor. A second capacitor and second switch may be provided in series between a source and drain of an input transistor. A method includes receiving a first input signal by a first side circuit, receiving a second input signal by a second side circuit, controlling a resource of a resonant tank circuit, and outputting an output signal according to the first and second input signals. The resource of the resonant tank circuit may be controlled according to a transmission mode, frequency band, or both.

Abstract: A wind power conversion system includes plural first converting circuits and a second converting circuit. The plural first converting circuits perform a power converting task, and include respective first generator-side terminals and respective first network-side terminals. The first generator-side terminals are electrically connected with a wind power generator. The first network-side terminals are electrically connected with corresponding secondary windings of an isolating transformer. The second converting circuit includes plural second generator-side terminals and a second network-side terminal. The second network-side terminal is electrically connected with the corresponding secondary winding of plural secondary windings of the isolating transformer. The second generator-side terminals are serially connected with the corresponding first generator-side terminals of the first converting circuits.

Abstract: A control device and control method of power conversion unit applied to a three-phase AC grid. The control device includes detection unit, current detection unit, and signal processing unit. The detection unit detects three-phase voltage signal of the three-phase AC grid and calculates and generates negative sequence reactive current given signal. The current detection unit detects current of the power conversion unit to output feedback current signal. The signal processing unit receives the negative sequence reactive current given signal, positive sequence current given signal, and the feedback current signal to output modulation signal. The power conversion unit is electrically coupled to the signal processing unit and the three-phase AC grid. The power conversion unit absorbs negative sequence reactive currents from the three-phase AC grid according to the modulation signal when the three-phase voltage signal is unbalanced to reduce negative sequence voltage at output terminal of the power conversion unit.

Abstract: A wind power converter device is provided. The wind power converter device includes grid side converters, generator side converters and a DC bus module. Each of the grid side converters includes grid side outputs electrically coupled to a grid and a first and a second DC inputs. Each two of the neighboring grid side converters are connected in series at the second and the first DC inputs. Each of the generator side converters includes generator side inputs electrically coupled to a generator device and a first and a second DC outputs. Each two of the neighboring generator side converters are coupled in series at the second and the first DC outputs. The DC bus module is electrically coupled between the grid side converters and the generator side converters.

Abstract: A converter system includes a first converter, a second converter, and a first inter-phase transformer. The first converter is electrically connected to the second converter in parallel between a first input terminal parallel end and a first output terminal parallel end. The first inter-phase transformer is disposed at the first input side parallel terminal or the first output side parallel terminal, and the first inter-phase transformer is operable to restrain a circulating current generated by the first converter and the second converter.

Abstract: An apparatus includes a differential amplifier. The differential amplifier includes a first side circuit configured to receive a first input signal, a second side circuit configured to receive a second input signal, and a resonant tank circuit coupled between the first and second side circuits. A first capacitor and first switch may be provided in series between a source and drain of a cascode transistor. A second capacitor and second switch may be provided in series between a source and drain of an input transistor. A method includes receiving a first input signal by a first side circuit, receiving a second input signal by a second side circuit, controlling a resource of a resonant tank circuit, and outputting an output signal according to the first and second input signals. The resource of the resonant tank circuit may be controlled according to a transmission mode, frequency band, or both.

Abstract: A control device and control method of power conversion unit applied to a three-phase AC grid. The control device includes detection unit, current detection unit, and signal processing unit. The detection unit detects three-phase voltage signal of the three-phase AC grid and calculates and generates negative sequence reactive current given signal. The current detection unit detects current of the power conversion unit to output feedback current signal. The signal processing unit receives the negative sequence reactive current given signal, positive sequence current given signal, and the feedback current signal to output modulation signal. The power conversion unit is electrically coupled to the signal processing unit and the three-phase AC grid. The power conversion unit absorbs negative sequence reactive currents from the three-phase AC grid according to the modulation signal when the three-phase voltage signal is unbalanced to reduce negative sequence voltage at output terminal of the power conversion unit.

Abstract: An unloading mechanism for removing workpieces from a transporting film can include a bottom plate, a picking assembly, and a storage assembly. The picking assembly can include a driving member coupled to the bottom plate, a pressing member coupled to the driving member, and a picking member coupled to the pressing member. The pressing member can define a receiving hole along an axis. The picking member can include a connecting rod coupled to the bottom plate, and a suction member coupled to the connecting rod. The suction member can be coupled to the second end and protruding out of the pressing member. The storage assembly can include a base plate configured to support the transporting film, and a pressing plate stacked on the base plate and the transporting film.

Abstract: An amorphous asiatic tromethamine salt and the preparation method thereof. The method includes the steps of: (1) dissolving asiatic acid in an organic solvent; step (2) mixing with tromethamine; step (3) stirring and salifying the same, and then removing the organic solvent. The method for preparing the amorphous asiatic tromethamine salt is easy and effective, and the water solubility and bioavailability of the asiatic tromethamine salt thus obtained are greatly compared with the prior art.