Abstract: A temperature detection circuit is provided. The temperature detection circuit includes an enable signal generation module and a detection output module. The enable signal generation module is configured to segmentally generate four detection enable signals. The detection output module is connected to an output terminal of the enable signal generation module, and is configured to segmentally generate four thresholds based on the four detection enable signals, and sequentially compare the four thresholds with a detection value. A charging-prohibited signal is valid when a low temperature protection or a high temperature protection is triggered, and a charging-prohibited/discharging-prohibited signal is valid when an ultra-low temperature protection or an ultra-high temperature protection is triggered.

Abstract: The present invention relates to the field of biotechnology, and specifically relates to a PPO polypeptide tolerant to PPO-inhibiting herbicides and use thereof. The said polypeptide contains the motif “LLLNYI”, wherein leucine L at position 3 in the said motif is substituted with any other amino acid, or tyrosine Y at position 5 is substituted with any other amino acid. It can be used in plants, including commercial crops, to greatly improve plant resistance to PPO-inhibiting herbicides according to the herbicide resistance characteristics and herbicide selectivity, so as to control weed growth economically.

Abstract: The present invention belongs to the field of biotechnology, and in particular relates to a protein and gene that can confer resistance to hormone herbicides and ACCase inhibitor herbicides, and the use thereof, as well as a plant, seed, cell and plant part with herbicide tolerance and the method of application thereof.

Abstract: An AC resistance detection circuit and system. The circuit includes: a working state control module, generating a working state control signal; a sampling module, outputting a sampling signal of a resistance between a neutral wire and a live wire in the detection state; a comparison module, receiving a reference signal and the sampling signal, and outputting a comparison result; a counting signal generation module, receiving an oscillation signal and the working state control signal, and outputting the oscillation signal as a counting signal in the detection state; a zero clearing module, receiving the comparison result and the working state control signal, and outputting an active zero clearing signal when resistance between the neutral wire and the live wire is greater than a threshold; and a counting module, connected to the counting signal and the zero clearing signal, and outputting a high level when a count value reaches a preset value.

Abstract: An AC resistance detection circuit and system. The circuit includes: a working state control module, generating a working state control signal; a sampling module, outputting a sampling signal of a resistance between a neutral wire and a live wire in the detection state; a comparison module, receiving a reference signal and the sampling signal, and outputting a comparison result; a counting signal generation module, receiving an oscillation signal and the working state control signal, and outputting the oscillation signal as a counting signal in the detection state; a zero clearing module, receiving the comparison result and the working state control signal, and outputting an active zero clearing signal when resistance between the neutral wire and the live wire is greater than a threshold; and a counting module, connected to the counting signal and the zero clearing signal, and outputting a high level when a count value reaches a preset value.

Abstract: An active rectifier bridge circuit and an on-chip integrated system. The active rectifier bridge circuit includes: a bias module, configured to provide a first bias current source, a second bias current source, and an internal power supply for a gate driver module; the gate driver module controlled by the first bias current source, the second bias current source, and the internal power supply, and configured to process one group of alternating current input voltages to generate two groups of control signals that are mutually inverted, to generate four gate drive signals; a power switch tube rectification module, connected to the bias module and the gate driver module, configured to: perform a turn-on or turn-off operation on corresponding power switch tubes under the control of the four gate drive signals, and convert the one group of alternating current input voltages into a direct current output voltage for output.

Abstract: An active rectifier bridge circuit and an on-chip integrated system. The active rectifier bridge circuit includes: a bias module, configured to provide a first bias current source, a second bias current source, and an internal power supply for a gate driver module; the gate driver module controlled by the first bias current source, the second bias current source, and the internal power supply, and configured to process one group of alternating current input voltages to generate two groups of control signals that are mutually inverted, to generate four gate drive signals; a power switch tube rectification module, connected to the bias module and the gate driver module, configured to: perform a turn-on or turn-off operation on corresponding power switch tubes under the control of the four gate drive signals, and convert the one group of alternating current input voltages into a direct current output voltage for output.

Abstract: The present invention relates to a mutant p-hydroxyphenylpyruvate dioxygenase (HPPD) protein or a bioactive fragment thereof and an isolated polynucleotide comprising a nucleic acid sequence encoding the protein or fragment thereof, wherein the mutant p-hydroxyphenylpyruvate dioxygenase (HPPD) protein or a bioactive fragment thereof retains or enhances the property of catalyzing the conversion of p-hydroxyphenylpyruvate (HPP) to homogentisate and is significantly less sensitive to HPPD-inhibiting herbicides than a wild-type HPPD. The present invention also relates to a nucleic acid construct, an expression vector and a host cell comprising the polynucleotide, as well as to a method for producing a plant that has the property of catalyzing the conversion of p-hydroxyphenylpyruvate (HPP) to homogentisate and significantly reduced sensitivity to HPPD-inhibiting herbicides.