Qingjie
Qingjie Ma, Shanghai CN
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20150372678 | ADAPTIVE BLANKING TIMER FOR SHORT CIRCUIT DETECTION - A gate driver IC for driving an NMOS transistor having a drain coupled through a load to a power supply. A gate driver output drives the gate of the NMOS transistor. A comparator receives the drain voltage of the NMOS transistor and compares it to a reference voltage representative of a short circuit condition between the drain and the power supply. The comparator outputs a first value if the drain voltage is greater than the reference voltage and outputs a second value if the drain voltage is less than or equal to the reference voltage. Control circuitry receives the output of the first comparator and pulls the voltage of the gate driver output low if the comparator output is of the first value. Adaptive masking circuitry is operable, upon an application of an “on” signal to the gate driver output, to mask the output of the comparator such that a condition of the drain voltage being greater than the reference voltage does not cause the control circuitry to pull the voltage of the gate driver output low. The adaptive masking circuitry detects a Miller plateau in the gate voltage of the external NMOS transistor. The adaptive masking circuitry stops masking the output of the comparator after the end of the Miller plateau. | 12-24-2015 |
Qingjie Zhang, Shenzhen CN
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20080281909 | INFORMATION ISSUING SYSTEM, PUBLIC MEDIA INFORMATION ISSUING SYSTEM AND ISSUING METHOD - An information issuing system, a public media information issuing system, and an information issuing method are provided, in which the information issuing method includes: collecting the user ID of every user who enters the service region of the public media information issuing system; acquiring the corresponding behavior character information of the user ID; integrating the behavior character information and selecting the corresponding information to be issued based on the integrated behavior character information; and issuing the selected information. Using the present disclosure, it can locate the information interested by the user to issue to the user fast and expediently. | 11-13-2008 |
Qingjie Zhang, Wuhan CN
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20160059313 | THERMOELECTRIC MATERIALS SYNTHESIZED BY SELF-PROPAGATING HIGH TEMPERATURE SYNTHESIS PROCESS AND METHODS THEREOF - The disclosure relates to thermoelectric materials prepared by self-propagating high temperature synthesis (SHS) process combining with Plasma activated sintering and methods for preparing thereof. More specifically, the present disclosure relates to the new criterion for combustion synthesis and the method for preparing the thermoelectric materials which meet the new criterion. | 03-03-2016 |
Qingjie Zheng, Shenzhen CN
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20150130583 | WIRELESS POWER TRANSFER SYSTEMS CONTAINING FOIL-TYPE TRANSMITTER AND RECEIVER COILS - Wireless power transfer systems include at least one foil-type transmitter/receiver coil with a plurality of turns, which is configured to reduce eddy current losses therein when energized to conduct an alternating current that supports inductive power transfer including coil-to-coil power electrical transfer, inductive heating, etc. The plurality of turns includes at least an outermost turn with a first arcuate-shaped corner having a concave inner surface, which faces an immediately adjacent one of the plurality of turns. The immediately adjacent one of the plurality of turns may also have a second arcuate-shaped corner with a concave inner surface facing an innermost one of the plurality of turns. The first arcuate-shaped corner may have a non-uniform radius of curvature and/or an innermost one of the plurality of turns may have an arcuate-shaped corner, which is a mirror image of the first arcuate-shaped corner when the coil is view in transverse cross-section. | 05-14-2015 |