Abstract: A current monitor includes current sense logic and a processor. The current sense logic senses inductor current at a predetermined time point during operation of a constant on-time regulator. The processor determines output current of the constant on-time regulator based on the inductor current sensed at the predetermined time point. The predetermined time point corresponds to half of an on-time period of the constant on-time regulator. The output current may be determined during continuous conduction mode (CCM) or discontinuous conduction mode (DCM). During DCM mode, the processor determines the output current of the constant on-time regulator based on a skip time.

Abstract: Apparatus and methods for controlling voltage converter are provided. In an example, a switched-mode DC-DC voltage converter can include an inductor, at least four switches coupled to the inductor and configured to direct current through the inductor to provide a desired output voltage at an output voltage terminal of the voltage converter using an input voltage supply and a ground reference of the converter, and a controller circuit, configured to receive an indication of inductor current through the inductor and to use the slope of the inductor current to control a change between two operating modes of a group of operating modes that include a boost operating mode, a buck operating mode, and a buck-boost operating mode.

Abstract: The present disclosure discloses a Bluetooth mesh network system having power management mechanism that includes low power nodes and a friend node. The friend node operates a part of the low power nodes under a first connection mode to establish a one-to-one connection with the friend node under a connection protocol. The friend node operates the other part of the low power nodes under a second connection mode to establish a many-to-one connection based on a broadcast protocol. The friend node sets a mode operation time threshold value and accumulates a mode connection time for each of the low power nodes. When the mode connection time of one of the low power nodes that operates under one of the first connection mode and the second connection mode reaches the corresponding mode operation time threshold value, the one of the low power nodes switches to operate under the other one of the first connection mode and the second connection mode.

Abstract: The present invention discloses a method for recycling urea in the process of separating and purifying unsaturated substances through a urea adduction method. The method comprises the following steps: liposoluble substances containing target unsaturated components are used as raw materials, and subjected to urea adduction, crystallization and filtration to produce a filtrate, from which the specific unsaturated components are obtained; the urea adduct is dissolved in a polar solvent, and after the adducted adducts are layered and released, adding a certain solvent to the urea solution to adjust the polarity, then cooling for crystallization, and recycling the urea.

Abstract: A method for automatically upgrading firmware over the air and a wireless node are provided. The method is applied to a wireless local area network including a plurality of wireless nodes. The method includes: broadcasting, by the wireless node, firmware information, and maintaining a connectable state; scanning, by each of the wireless nodes, other wireless nodes, where when the wireless node scans another wireless node with an old version of firmware information, the scanning wireless node serves as a master wireless node, and the another scanned wireless node serves as a slave wireless node; connecting, by the master wireless node, to the slave wireless node, and sending an upgrade instruction to the slave wireless node; performing, by the slave wireless node, a firmware upgrade according to the upgrade instruction to update to a new version of firmware; and disconnecting the master wireless node from the slave wireless node.

Abstract: The present invention discloses a Bluetooth mesh network system having control authority sharing mechanism that includes an original provisioner node and at least one newly added provisioner node. The original provisioner node stores control authority information related to a Bluetooth mesh network, controls the Bluetooth mesh network accordingly and performs a control authority broadcast. The newly added provisioner node receives the control authority broadcast and establishes connection with the original provisioner node according to a connection protocol. The newly added provisioner node further requests the control authority information from the original provisioner node so as to control the Bluetooth mesh network after receiving the control authority information from the original provisioner node.

Abstract: The present invention discloses a Bluetooth mesh network system having unprovisioned communication mechanism that includes a delivering node and a receiving node. The delivering node generates a beacon signal having identification information that is not a key and performs broadcast communication. The receiving node receives the beacon signal and performs identification and processing under a network communication protocol to execute a command corresponding to the beacon signal.

Abstract: The present invention discloses a Bluetooth mesh network system having quick provisioning mechanism that includes an infrared control apparatus and nodes. The infrared control apparatus generates a provisioning activation infrared signal. Each of the nodes receives the provisioning activation infrared signal and generates a group key according to predetermined group number information thereof to perform communication according to the group key based on a Bluetooth mesh network communication protocol.

Abstract: A current monitor includes current sense logic and a processor. The current sense logic senses inductor current at a predetermined time point during operation of a constant on-time regulator. The processor determines output current of the constant on-time regulator based on the inductor current sensed at the predetermined time point. The predetermined time point corresponds to half of an on-time period of the constant on-time regulator. The output current may be determined during continuous conduction mode (CCM) or discontinuous conduction mode (DCM). During DCM mode, the processor determines the output current of the constant on-time regulator based on a skip time.

Abstract: The present invention provides a fatty glyceride preparation method, comprising converting fatty acid short-chain alcohol ester into fatty glyceride basic mixture by sequentially carrying out a normal-pressure reaction and a vacuum reaction in the nitrogen condition in the temperature of 80° C. to 150° C.; and meanwhile adding a basic catalyst and glycerin or adding a basic catalyst and a glycerin derivative into the fatty acid short-chain alcohol ester, so as to implement a conversion from the fatty acid short-chain alcohol ester to the fatty glyceride. Conditions of the preparation method are relatively moderate, and the structure of the fatty acid is not damaged in the reactions; the yield of the glyceride is high, compositions of the glyceride are stable and controllable, glyceride products having a high content of triacylglycerol can be obtained; the process is simple, costs are low, and the fatty glyceride is applicable to industrial production.

Abstract: Embodiments of switched capacitor voltage converters and methods for operating a switched capacitor voltage converter are disclosed. In an embodiment, a switched capacitor voltage converter includes serially connected switching devices, a voltage generator connected to the serially connected switching devices and configured to generate driver voltages in response to a first voltage at a first terminal that is connected to the serially connected switching devices, and voltage drivers configured to drive the serially connected switching devices based on the driver voltages.

Abstract: The present invention provides a method for drying high-stability microcapsule particles containing multiple double bonds fat soluble nutrients comprises: a) preparing a microcapsule emulsion containing multiple double bonds fat soluble nutrients, performing spray granulation on the microcapsule emulsion in a spray system (1), and meanwhile blasting air into the spray system (1), the blasted air wrapping adsorption materials, and the microcapsule emulsion being immediately solidified and sized after coming into contact with the air, so as to obtain liquid droplets having surfaces to which adsorption materials are adsorbed; b) performing fluidized drying on the liquid droplets having surfaces to which the adsorption materials are adsorbed in the step a) in a multi-stage fluidized bed system (5); c) collecting non-adsorbed adsorption materials by means of an adsorption material dust removal, recovery and circulation system; and d) collecting microcapsule particle products.

Abstract: Embodiments of switched capacitor voltage converters and methods for operating a switched capacitor voltage converter are disclosed. In an embodiment, a switched capacitor voltage converter includes serially connected switching devices, a voltage generator connected to the serially connected switching devices and configured to generate driver voltages in response to a first voltage at a first terminal that is connected to the serially connected switching devices, and voltage drivers configured to drive the serially connected switching devices based on the driver voltages.

Abstract: The present disclosure provides substituted pyrimidine compounds of Formula (I), and the pharmaceutically acceptable salts, prodrugs, and solvates thereof, wherein A1, X, A2, W1, W2, W3, E, Z, and R4 are defined as set forth in the specification. The present disclosure is also directed to the use of compounds of Formula (I) to treat a disorder responsive to the blockade of sodium channels. Compounds of the present disclosure are especially useful for treating pain.

Abstract: A current limiter circuit for limiting current through a pass device is disclosed. The current limiter circuit includes a accurate/fast current limiter circuit, a coarse/slow current limiter control circuit and a pass device having an input port, an output port and an on/off control port. A control circuit couple to the accurate/fast current limiter circuit and the on/off control port is also included. The accurate/fast current limiter circuit is coupled to the input port and the output port and the coarse/slow current limiter control circuit is coupled to the input port and the output port and an on/off control port of the accurate/fast current limiter circuit.

Abstract: Embodiments of switched capacitor voltage converters and methods for operating a switched capacitor voltage converter are disclosed. In an embodiment, a switched capacitor voltage converter includes serially connected switching devices, a voltage generator connected to the serially connected switching devices and configured to generate an output voltage for a bootstrap capacitor in response to a first voltage at a first terminal that is connected to the serially connected switching devices, and voltage drivers configured to drive the serially connected switching devices based on the output voltage.

Abstract: An electronic circuit includes parallel linear regulator circuits that support a range of different load currents. The electronic circuit includes a first linear regulator circuit coupled to an output node, a second linear regulator circuit coupled in parallel with the first linear regulator circuit and the output node, and a control circuit. The control circuit is configured to monitor the output node and to suppress or inhibit the second linear regulator circuit from supplying the output node when a representation of load power consumption is below a specified threshold. The first linear regulator circuit is configured to continue to supply a portion of the load power when the representation of load power consumption is above the specified threshold, and the control circuit may disable the second linear regulator circuit when the representation of load power consumption is below the specified threshold.

Abstract: The present invention provides a method of preparing highly stable microcapsule powders or microparticles containing a fat-soluble nutrient having multiple double bonds.

Abstract: An electronic circuit includes parallel linear regulator circuits that support a range of different load currents. The electronic circuit includes a first linear regulator circuit coupled to an output node, a second linear regulator circuit coupled in parallel with the first linear regulator circuit and the output node, and a control circuit. The control circuit is configured to monitor the output node and to suppress or inhibit the second linear regulator circuit from supplying the output node when a representation of load power consumption is below a specified threshold. The first linear regulator circuit is configured to continue to supply a portion of the load power when the representation of load power consumption is above the specified threshold, and the control circuit may disable the second linear regulator circuit when the representation of load power consumption is below the specified threshold.

Abstract: Embodiments of ripple generation devices for a constant on-time voltage regulator and methods for ripple generation for a constant on-time voltage regulator are described. In one embodiment, a ripple generation device for a constant on-time voltage regulator includes a ripple generator configured to generate a ripple signal, a detector operably connected to the ripple generator and configured to detect a difference between an amplitude of the ripple signal and at least one reference amplitude and a feedback controller operably connected to the ripple generator and the detector and configured to generate a control signal for controlling the amplitude of the ripple signal based on the detected difference. Other embodiments are also described.