2results about How to "Extended release time" patented technology

This invention relates to the field of pulse circuit technology and discloses a high-efficiency AC power line zero-crossing detection chip, including a path selection module, a signal processing module, and a driving module. The path selection module switches the charging circuit according to the potential of the internal power supply capacitor. The signal processing module uses a feedback loop to adjust the switching level of the sampling branch and generate a zero-crossing trigger pulse signal. The driving module responds to the zero-crossing trigger pulse signal by segmentally turning on the internal power supply capacitor and the external energy supply capacitor in the initial and subsequent stages of the zero-crossing point. This invention solves the contradiction between the ultra-high input impedance sampling environment and the driving strength through a controlled hysteresis window and a segmented current injection mechanism, suppresses signal jitter, improves the timing accuracy of zero-crossing detection, and effectively reduces the static power consumption of the system.

The application discloses a W / O / W compound emulsion and a preparation method and application thereof. The preparation method of the compound emulsion comprises the following steps: mixing cinnamyl aldehyde and hydrophobic bacterial cellulose with oil to prepare an oil phase; mixing the oil phase with a nutritional ingredient aqueous solution to prepare a W1 / O primary emulsion by homogenously emulsifying; mixing the W1 / O primary emulsion with an aqueous solution W2 containing bacterial cellulose to homogenously emulsify, and the W / O / W compound emulsion is obtained; and the hydrophobic bacterial cellulose is obtained by hydrophobic modification of bacterial cellulose. The cinnamyl aldehyde in the oil phase is released to the outside at the same time as the nutritional ingredient in the inner aqueous phase, so that the released nutritional ingredient is prevented from being polluted by bacteria, the antibacterial time is prolonged, and the shelf life of the compound emulsion is prolonged. In addition, the bacterial cellulose is used as a water-soluble emulsifier to stabilize the O / W2 emulsion, and the hydrophobic bacterial cellulose is used as an oil-soluble emulsifier to stabilize the W1 / O emulsion, so that the compound emulsion has good biocompatibility, safety and stability.