Abstract: A pipeline A/D converter and its single redundancy bit digital correction are provided. The single redundancy bit digital correction includes the following steps: substages except for the last one quantizes input voltage, calculates the residual voltage, which is amplified and shifted to the middle part of the reference voltage range, and outputs to the following substage until the last one, which only quantizes the input voltage; the code and offset code of each substage corresponding to the quantized thermometer code are calculated; the offset codes of all stages are added by weight to get total offset code; and codes of all substages are added by weight, to which the total offset code is added. The comparator offset error is corrected to obtain an output code which identifies the negative or positive overflow of input signals. The A/D converter adopting the above digital correction is provided.

Abstract: A device for detecting a PWM wave, comprising: a PWM wave generating module, configured to generate the PWM wave; a detecting module coupled to the PWM wave generating module, configured to receive the PWM wave and to determine an electric level of the PWM wave; a timer coupled to the detecting module, configured to start a counting when the detecting module receives the PWM wave, and to interrupt the counting when the counting reaches a predetermined value, the detecting module determining whether the electric level of the PWM wave is a high electric level or a low electric level when the counting is interrupted; and a calculating module coupled to the detecting module, configured to calculate a duty ratio of the PWM wave based on a number of high electric level and a number of low electric level of the PWM wave determined within one period of the PWM wave.

Abstract: A home energy control system and a controlling method thereof are provided.

Abstract: A control system for an in-vehicle solar energy charger, comprising a solar cell panel, a solar energy charger, a starting battery, a power battery and a controller. The solar energy charger, the starting battery and the power battery are electrically connected to the controller respectively. The controller is configured for performing a maximum photovoltaic power tracking algorithm and controlling an output power of the solar energy charger for charging the power battery or starting battery, according to an input power of the solar energy charger.

Abstract: The present invention pertains to the technical field of A/D converter, to be more specific, a pipeline A/D converter and its single redundancy bit digital correction. The related single redundancy bit digital correction features the following steps: substages except for the last one quantizes input voltage, calculates the residual voltage, which is amplified and shifted to the middle part of the reference voltage range, and outputs to the following substage until the last one, which only quantizes the input voltage; The code and offset code of each substage, corresponding to the quantized thermometer code is calculated; the offset codes of all stages are added by weight to get total offset code; codes of all substages are added by weight, to which the total offset code is added.

Abstract: A novel and practical process for selectively producing a pyridobenzoxazine carboxylic acid hemihydrate (e.g., (S)-9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido-[1,2,3-de] [1,4]benzoxazine-6-carboxylic acid hemihydrate) in high yield via crystallization from an organic solvent or a mixed organic solvent system containing a calculated amount of water released from sodium sulfate decahydrate under gradually heating.

Abstract: An internal resistance testing device includes an excitation source and a battery pack, an adjustable resistance R, a sampling unit, and a control unit. The excitation source and the battery pack form a loop circuit. The adjustable resistance R may be located at the loop circuit formed by the excitation source and the battery pack. The sampling unit samples the voltage between two sides of the battery pack, the voltage between two sides of the adjustable resistance R, and the value of the adjustable resistance R. The control unit calculates internal resistance of the battery pack according to the signal value collected by the sampling unit. The internal resistances of different voltage-ranges the battery pack are determined by adjusting the value of the adjustable resistance R to cause the actual excitation voltage to be equal to the range voltage of the sampling unit.

Abstract: A novel and practical process for selectively producing a pyridobenzoxazine carboxylic acid hemihydrate (e.g., (S)-9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido-[1,2,3-de][1,4]benzoxazine-6-carboxylic acid hemihydrate) in high yield via crystallization from an organic solvent or a mixed organic solvent system containing a calculated amount of water released from sodium sulfate decahydrate under gradually heating.