859 results about "Charge detection" patented technology

Structures and methods for three-dimensional image sensing using high frequency modulation includes CMOS-implementable sensor structures using differential charge transfer, including such sensors enabling rapid horizontal and slower vertical dimension local charge collection. Wavelength response of such sensors can be altered dynamically by varying gate potentials. Methods for producing such sensor structures on conventional CMOS fabrication facilities include use of “rich” instructions to command the fabrication process to optimize image sensor rather than digital or analog ICs. One detector structure has closely spaced-apart, elongated finger-like structures that rapidly collect charge in the spaced-apart direction and then move collected charge less rapidly in the elongated direction. Detector response is substantially independent of the collection rate in the elongated direction.

A method is provided for protecting a refrigerant vapor compression system during a standstill period following shutdown of the refrigerant vapor compression system. A method is provided for detecting a low refrigerant charge level in a refrigerant vapor compression system operating in a transcritical mode. A refrigerant vapor compression system is provided that includes a controller operative to perform a refrigerant charge detection method.

A MOS or CMOS based active pixel sensor designed for operation with zero or close to zero potential across the pixel photodiodes to minimize or eliminate dark current. In preferred embodiments the pixel photodiodes are produced with a continuous pin or nip photodiode layer laid down over pixel electrodes of the sensor. In this preferred embodiment, the voltage potential across the pixel photodiode structures is maintained constant and close to zero, preferably less than 1.0 volts. This preferred embodiment enables the photodiode to be operated at a constant bias condition during the charge detection cycle. Setting this constant bias condition close to zero (near “short circuit” condition) assures that dark current is substantially zero.

A MOS or CMOS based active pixel sensor designed for operation with zero or close to zero potential across the pixel photodiodes to minimize or eliminate dark current. In this preferred embodiment, the voltage potential across the pixel photodiode structures is maintained constant and close to zero, preferably less than 1.0 volts. This preferred embodiment enables the photodiode to be operated at a constant bias condition during the charge detection cycle. In preferred embodiments the pixel photodiodes are produced with a continuous pin or nip photodiode layer laid down over pixel electrodes of the sensor. In other preferred embodiments the pixel photodiode structures are produced beside and physically isolated from the regions where CMOS circuits are formed. In some of these preferred embodiments the isolated pixel photodiode structures are comprised of crystalline germanium deposited in cavities in a silicon substrate. This embodiment can be adapted especially for imaging at short wave infrared frequencies. Preferred embodiments are adapted for correlated double sampling.

Disclosed herein is a solid-state image pickup apparatus, including a pixel array section in which a unit pixel including a photoelectric conversion section and a charge detection section for detecting charge generated by photoelectric conversion by the photoelectric conversion section is disposed; a driving section adapted to carry out driving of reading out a signal of the unit pixel divisionally by twice as a first signal and a second signal; and a signal processing section adapted to set the first signal read out first from the unit pixel as a reference voltage for a processable input voltage range of the signal processing section, adjust the reference voltage so that the first and second signals may be included in the input voltage range and carry out signal processing for the first and second signals using the adjusted reference voltage.

An over-current and over-voltage protection circuit for an electronic cigarette, comprising a battery and an interface, a control unit and a charging detection switch unit; the control unit is configured for calculating an actual charging current according to the first working voltage and determining whether the actual charging current exceeds a preset charging current threshold value, and sending a first charging controlling signal to the charging detection switch unit; the control unit is further configured for real-timely detecting an input voltage of the interface, determining whether the input voltage of the interface is in over-voltage status, and controlling a turned-on or turned-off operation of the charging detection switch unit. The over-current over-voltage protection circuit and method eliminate the security risk of the battery pole not having a charging management circuit in the non-normal charging status.

A solid-state imaging device comprising an imaging area having unit cells, a vertical driving circuit, signal processing circuits, a horizontal driving circuit, and an output circuit. Each of the unit cells including first and second photoelectric conversion / storage sections, first and second charge readout circuits, a potential detecting circuit, a reset circuit, and an address circuit. The solid-state imaging device has a first operation mode in which the first and second charge readout circuits are driven at substantially the same timing by the vertical driving circuit, the charges stored in the first and second photoelectric conversion / storage sections are transferred to and added together in the charge detecting section, and the potential detecting circuit detects the added charges, generates and transmits a potential corresponding to an amount of detected charges to the vertical signal line, and outputs the potential from the output circuit via the signal processing circuits.

There is disclosed a system for electrical charge detection comprising a nanoFET device. Also disclosed is a method of electrical charge detection for single molecule sequencing. The method includes attaching a macromolecule or assemblies thereof to a gate of a nanoFET device and flowing in a solution of charge tags, where a charge tag includes a nucleotide attached to a charge complex. The method also includes incorporating one charge tag into the macromolecule or assemblies thereof and cleaving the charge tags from the macromolecule or assemblies thereof. The method further includes detecting at least one of current and voltage from the nanoFET device.

According to one aspect, the disclosure is directed to an example embodiment in which a circuit-based arrangement includes a circuit-based substrate securing a channel, with an effective width that is not limited by the Debye screening length, along a surface of the substrate. A pair of reservoirs are included in or on the substrate and configured for containing and presenting a sample having bio-molecules for delivery in the channel. A pair of electrodes electrically couple a charge in the sample to enhance ionic current flow therein (e.g., to overcome the electrolyte screening), and a sense electrode is located along the channel for sensing a characteristic of the biological sample by using the electrostatic interaction between the enhanced ionic current flow of the sample and the sense electrode. Actual detection occurs by using a charge-signal processing circuit to process the sensed charge signal and, therefrom, provide an output indicative of a signature for the bio-molecules delivered in the channel.

The invention discloses a charging fault diagnosis and safety detection system and method of an electric vehicle. The system comprises a BMS, a CAN wire, a VCU, a vehicle charger, a DC charging pile,an AC charging pile, a battery, a vehicle charging interface, a charging interface, a charging gun and a charging fault diagnosis and safety detection system, and the charging fault diagnosis and safety detection system comprises a signal acquisition unit, a national standard memory, a processing unit, a human-machine interaction interface and a relay. The method includes steps: the charging faultdiagnosis and safety detection system is externally connected between the vehicle charging interface and the charging interface of the charging gun, the connection to an electric vehicle charging system is realized through the CAN wire, and through collection of message information, acquired by the VCU, of the BMS and communication messages of the DC charging pile and the AC charging pile and comparison with an electric vehicle charging national standard, the reason of charging failure is determined, and charging is finished after occurrence of problems of overcurrent and overvoltage of charging. According to the system and the method, the charging detection efficiency and the charging security of electric vehicles can be greatly improved.

A solid-state imaging device includes a signal charge detection unit converting signal charges into voltage to be outputted, which have been obtained by photoelectrically converting incident light, and in which the signal charge detection unit arranges a drive transistor having a carbon nanotube channel over a channel region between an output gate and a reset gate of a solid-state imaging device through an insulating film.

A charge detection system used in an image sensor consists of the vertical punch through transistor with the gate surrounding its source and connected to it. The charge detector has a large conversion gain, high dynamic range, low reset feed through, and low noise. It senses charge nondestructively, which avoids generation of kTC noise. Additional embodiments of the invention include a standard reset gate option, a resistive reset gate option, and a lateral punch through transistor reset option to minimize the reset feed through. The charge detection system can be used in all know CCD image sensor architectures as well as in most CMOS image sensor architectures.

The present invention relates to a CCD solid state image sensor of a scanning read-out type and to a drive method thereof as well as an image pick-up method and the image pick-up device, particularly in which a plurality of vertical CCD columns can be assigned to one electric-charge detection unit with the small number of wiring. In the present invention, adjacent columns of the vertical CCDs are assigned to one electric-charge detection unit. Further, the stages of the voltage transfer between the vertical CCD column and a voltage detection unit is made different; the electrode arrangement is devised; or the drive timing is adjusted. Accordingly, the phase of electric-charge transfer with respect to the plurality of adjacent vertical CCD columns, when the horizontal electric-charge at the same position in the direction of the row obtained by the photo-conductive units is made to reach the electric-charge detection unit, becomes different.

The present invention is a battery pack with BMU mounted in the control circuit for controlling battery voltage, etc. In order to avoid worsening of the battery pack durability due to failure of suspension of charging when full-charge detection or over-charge detection is not executed at all because of trouble in the battery voltage measuring section, the battery pack comprises a self-checking section which integrates the charging capacity during charging and detects whether or not the charging capacity is higher than a set-value and turns OFF the charging FET, thereby executing the trouble checking of charging capacity.

A high-speed, high-sensitivity demodulation sensor usable for e.g. time-of-flight application uses a back side illuminated (BSI) image sensor chip, in which the photo-generated charges are first transferred to a demodulation area, from which the charges are then sampled and stored on at least one specific storage node. The storage node is electrically isolated from the sensitive area. Such a pixel might find its use specifically in 3D time-of-flight imaging given its improvements in sensitivity because the presented invention allows to design pixel with up to 100% fill factor and enables charge detection even if the charge generation by the photon occurs deep in the silicon substrate.

An electronic cigarette case and a method for charging an electronic cigarette through it are provided. The electronic cigarette case comprises a case body having a charging interface, it further comprises a controller, a trigger switch, a charging detection module and an electronic cigarette charging output module, the trigger switch is set close to the charging interface and will be triggered when the electronic cigarette has been inserted into the charging interface, in case the controller has found out that the trigger switch has been triggered, it will control the electronic cigarette charging output module to enter a charging mode; in case the charging detection module has found out that the electronic cigarette has been fully charged, the controller will control the electronic cigarette charging output module to enter an ultra low standby mode.

An over-current and over-voltage protection circuit for an electronic cigarette, comprising a battery and an interface, a control unit and a charging detection switch unit; the control unit is configured for calculating an actual charging current according to the first working voltage and determining whether the actual charging current exceeds a preset charging current threshold value, and sending a first charging controlling signal to the charging detection switch unit; the control unit is further configured for real-timely detecting an input voltage of the interface, determining whether the input voltage of the interface is in over-voltage status, and controlling a turned-on or turned-off operation of the charging detection switch unit. The over-current over-voltage protection circuit and method eliminate the security risk of the battery pole not having a charging management circuit in the non-normal charging status.

The invention discloses an electric vehicle charging pile parking stall reservation and management system. The electric vehicle charging pile parking stall reservation and management system comprises a server and database, a backstage management center, a hardware device disposed on a parking stall terminal, and a mobile terminal. The server and database is used for real-time update of user information, order information, parking stall information, and other related data. The backstage management center is used to record use data of a charging pile parking stall, and is used to process the data, and the charging pile parking stall and a user are managed in a unified manner. The hardware device adopts a single-chip microcomputer main board as a core, and is provided with a parking stall detection module, a parking stall lock module, a charging detection module, a wireless communication module, and a display module. The mobile terminal is used to realize the query function, the reservation function, the parking guidance function, and the charging function of the charging pile parking stall. The owner of the electric vehicle can find the available charging pile parking stall timely and effectively to charge the electric vehicle, and therefore the parking and charging experience of the owner of the electric vehicle is greatly improved.

The invention relates to a single lithium battery protection chip with accurate delay and dormancy functions. The chip internally comprises a control module and a detection module, wherein the detection module is used for comparing a voltage at the end VDD of a lithium battery with an overcharge detection voltage and an overdischarge detection voltage and comparing a voltage at the end VM with an overcurrent detection voltage, a short-circuit detection voltage and a charge detection voltage to obtain comparison signals; the control module is used for processing the comparison signals, judging the working state of the lithium battery and cutting off a charge or discharge switch to protect the lithium battery according to the actual situation. When the lithium battery just enters an overdischarge state, a difference between the voltage at the end VDD and the voltage at the end VM is detected; when the value of VDD-VM is lower than that of a dormancy detection voltage and an external circuit does not form a short circuit, the control module is used for controlling the chip to enter the dormancy state to reduce the power consumption and prolong the work time; protection measures adopted when the lithium battery enters an abnormal state are kept, and when the state of the lithium battery is restored, the charge or discharge switch is switched on to remove the abnormal state.

Example embodiments relate to an image sensor and a fabrication method thereof. An image sensor may include a semiconductor substrate. A charge transfer structure may be formed on the semiconductor substrate. The charge transfer structure may include a gate insulating film that may be formed on a channel region in the semiconductor substrate between a photoelectric conversion region and charge detection region, and a transfer gate electrode that may be formed on the gate insulating film that may have a region doped with a first conductivity type impurity-doped region and a second conductivity type impurity-doped region which may be adjacent to each other.

A complementary metal oxide semiconductor (CMOS) image sensor and a method for operating the same are provided. The CMOS image sensor includes a pixel array unit having a matrix of pixels, wherein each pixel comprises a charge transfer element for transferring charge collected in a photoelectric conversion element to a charge detection element, and a row drive unit for supplying a voltage to the charge transfer element during part of a charge integration period of the photoelectric conversion element, wherein the supplied voltage causes the charge transfer element to have a negative potential.

The invention discloses a charging detection method and detector of a battery. The method comprises the following steps: setting charging parameters and detection parameters of a rechargeable battery; detecting the voltage of the rechargeable battery, and comparing the detected voltage with the fully charging voltage and charging critical voltage in the set charging parameters; if the conditions are not met, obtaining the charging time of the rechargeable battery, and comparing the charging time with the rated charging time in the preset charging parameters; and if the conditions are not met, determining that a charging fault occurs in the charging process. The method and detector provided by the invention can be used for detecting the charging fault in the process of charging the battery.

The invention provides a charging system. The charging system comprises a wireless power emission device, an adapter, a wireless power source access unit, a wired power source access unit, a signal detection module, a charging detection circuit and a control unit, wherein the control unit is used for managing electric power channels according to an access state of a wired power source or a wireless power source detected by the signal detection module, the control unit further comprises a cell monitoring module, and the controller utilizes the cell monitoring module to acquire cell parameters from the charging detection circuit and controls electric power output of the wireless power emission device or the adapter to provide proper electric power for chargeable cells. The charging system has the automatic adjustment function, when wireless electric access is employed, output power is adjusted according to demand change of the output power of the wireless power source access unit; when wired electric access is employed, carrying all types of chargers for charging the cells is not required, and operation is simple and convenient.

The invention discloses an intelligent charging detection circuit and a movable power supply. The intelligent charging detection circuit comprises a power supply circuit, a controller, a charging interface and an insertion detection circuit; the insertion detection circuit is used for detecting the variation of electrical parameters of the charging interface, a switch element is controlled by the variation of the electrical parameters of the charging interface to be on and off, a corresponding command signal is generated by utilizing the variation of the on-off state of the switch element and is transmitted to a controller, and the command signal is used for recognizing the insertion state of a charging device. A charging device insertion detection circuit is additionally arranged in a movable power supply, so that the movable power supply is enabled to stay at a dormant state during the non-charging period, the current loss of the movable power supply can be reduced, and the use time of the movable power supply is prolonged. A current monitoring circuit is additionally arranged in the movable power supply, the size of the charging size can be monitored in real time, and the battery application efficiency of the movable power supply can be improved by reducing the constant-voltage charging time while the safety of the movable power supply and the charging device is guaranteed.

An electrostatic force microscope wherein electrostatic force applied to the detector is determined through obtaining the field distribution on several different shaped detectors with the calculation of the voltage distribution near the detector with the Finite Element Method to direct the measurement of the absolute charge amount on surface under test so that one can define the differences between the analysis and the results from the parallel plate model. Of interest is how large the error in the charge detection occurs in conjunction with thickness change of dielectric materials to be tested. There is provided a detector with cantilever which has proper shape for the spatial resolution of 10mu made out of nickel foil for an electrostatic force microscope and the electrostatic force which appeared on it has been calculated.

The invention provides a calibration device of a sub-pixel circuit, a source electrode driver and a data voltage compensation method. The sub-pixel circuit comprises a driving transistor, a data line and a sensing line. The calibration device comprises a capacitance measurement circuit, a charge detection circuit and a parameter calibration component, wherein the capacitance measurement circuit is used for outputting capacitance measurement voltage which is related with sensing line capacitance of the sensing line; the charge detection circuit is used for detecting capacitance charging voltage on the sensing line capacitance of the sensing line under the condition that reference data voltage is applied to the data line; and the parameter calibration component is used for calculating an electrical parameter of the driving transistor according to the capacitance measurement voltage, the reference data voltage and the capacitance charging voltage. Therefore, an electrical parameter drift condition of the driving transistor in the sub-pixel circuit can be determined, and thus data voltage applied to the sub-pixel circuit can be adjusted according to the electrical parameter drift condition, so that a circumstance of non-uniform display brightness caused by electrical parameter drift is compensated.

A differential transimpedance amplifier circuit for correlated differential amplification. The amplifier circuit increase electronic signal-to-noise ratios in charge detection circuits designed for the detection of very small quantities of electrical charge and / or very weak electromagnetic waves. A differential, integrating capacitive transimpedance amplifier integrated circuit comprising capacitor feedback loops performs time-correlated subtraction of noise.

The invention discloses an automatic separating bar shear for IC strips and a separating bar shear method thereof, wherein the bar shear comprises a strip charging detection combination A, which lifts the strips in a stack-type strip box in a stepping manner, picks and places the strips on an opening / closing guide rail device, performs directional detection and two-dimensional code data reading, and then delivers the strips downstream; a strip conveying detection combination B, which removes, among the strips delivered from the strip charging detection combination part, the strips which are unqualified in the directional detection into a scrap box; a strip separating bar shear combination C, in which the strips delivered from the previous position, on which the locations of the unqualified blocks are found, are subjected to stepping movement through a bar shear strip movement device, and in the process of stepping movement, the unqualified blocks are shorn off through a separating bar shear mold device and then fall into an unqualified block collecting device; and a strip discharging combination D, in which the separated and bar-shorn strips delivered from the strip separating bar shear combination are subjected to delivery, discharging and other operations to be automatically stacked in a device of a discharging box.

The invention is concerned with the charging detection circuit of the electric machine and the testing method. It is with the data transmission interface that its terminals for power supplies connects the power circuit of the inner of the electric machine where the data signal terminal connects the data transmission loop; the data transmission interface include at least two data signal terminal with the data signal line of each, one meets the voltage upward branch and the other one meets the input interface of the processor; the processor generates the charging detection signal according to the data transmission interface and send it to the power supply to limit the size of the input current with the data transmission interface.

The invention belongs to the technical field of electromobile charging, and particularly relates to an automatic charging control system and method used for a domestic electromobile in a residential area. According to the statistical utilization rule of electromobiles in the residential area and the household demand rule of the residential area, the day maximum power of the electricity load of the residential area is computed by the adoption of a time sequence simulation method, and the lambda value corresponding to the minimum value of the day maximum power is sleeved to serve as the proportion of the number of vehicles on which valley period positive sequence charging is conducted and the number of vehicles on which valley period reverse sequence charging is conducted; the required time spent in conventional charging is worked out by reading the electromobile battery state through a charging detection interface; according to the demand of users for vehicles obtained through a user interface and the lambda value, a charging strategy is generated, a timing charging command is sent to a timing charging switch so as to control the electromobiles to charge automatically. By means of the automatic charging control system and method, communication and between a charging control center and a charging pile and between a control center and the charging pile and complex optimization computing are not needed, the system and method are convenient to use, and the charging demand generated when no less than 50% families each own one electromobile is met on the premise that the current power distribution capacity of the community is not increased.