Abstract: The present invention relates to a soluble beverage powder of dried coffee extract. In particular to a soluble coffee powder having a gold appearance. Further aspects of the invention are a powder mix for preparing a beverage and a process for making a soluble beverage powder.

Abstract: The invention discloses a method for controlling a bleeder connected to a phase-cut dimmer and a circuit connected to a phase-cut dimmer. The method includes detecting an input voltage of the bleeder to obtain a detection voltage, and comparing the detection voltage and a preset reference voltage, wherein during a first time period, the detection voltage is less than the preset reference voltage, a start point of the first time period is a first moment, and an end point of the first time period is a second moment; delaying a first preset duration on the basis of the second moment to turn off the bleeder; and advancing a second preset duration on the basis of the first moment to turn on the bleeder.

Abstract: The invention discloses a power conversion device and a voltage control method. The power conversion device includes a first stage circuit configured to generate a first output voltage, a second stage circuit configured to receive the first output voltage and generate an output current and a second output voltage, and a control unit configured to control the first stage circuit according to a set value of the output current, thereby adjusting the first output voltage. The invention can be adapted to a wide range load voltage by adjusting the first output voltage of the first stage circuit according to the set value of the output current of the second stage circuit.

Abstract: A dimming circuit includes a DC/DC conversion unit and a control module. The control module provides a switching period reference, and samples an input voltage and an output voltage. The control module calculates a turn-on time according to the input voltage, the output voltage and a reference current signal. The control module generates a variation period signal which is cyclically-changed. The variation period signal is combined with the switching period reference or the turn-on time. Consequently, a pulse width modulation signal cyclically changed is generated by the switching period reference, the turn-on time and the variation period signal. Since the switching periods is cyclically changed, the average of the output current is close to the ideal value.

Abstract: The present disclosure provides a power supply device and a high-power illumination system. The power supply device includes: a housing, where the housing includes a first bottom plate having a first surface on which a first heat sink is provided and a second surface on which a thermal conductive potting layer is provided; and a printed circuit board, where the printed circuit board is located in the housing, the printed circuit board includes a circuit board body and multiple electronic components arranged on the circuit board body, at least part of the multiple electronic components is arranged facing the second surface of the first bottom plate, and the electronic component of the at least part of the multiple electronic components is partially immersed in the thermal conductive potting layer to conduct heat dissipated by the electronic component to the first heat sink for natural heat dissipation of the electronic component.

Abstract: The present invention discloses a polypeptide compound, a pharmaceutical composition, and a preparation method and use thereof. The structural formula of the polypeptide compound is shown in general formula (I): Such polypeptide compounds as ?-opioid receptor agonists have the advantages of better activity and the potential to become clinical candidate compounds.

Abstract: A dimming control method and a dimming circuit are used to control the brightness of a LED. The dimming circuit includes a power conversion unit having an input end, an output end, an inductor, and a switch. When the dimming current signal is higher than or equal to a first current threshold, the switch is controlled such that the power conversion unit operates in a continuous Conduction mode or a boundary Conduction mode; when the dimming current signal is lower than the first current threshold, the switch is controlled such that the power conversion unit operates in a discontinuous Conduction mode; and when the dimming current signal is lower than a second current threshold, the switch is controlled such that the power conversion unit operates in a chopping control mode.

Abstract: The present invention relates to a soluble beverage powder comprising dried coffee extract particles having two essentially flat surfaces and a uniform thickness. A further aspect of the invention is a process for making a freeze-dried soluble beverage powder.

Abstract: Natural Creamers for providing whitening and indulgent texture/mouthfeel of beverage and food products are provided. The creamers have long-term stability, high whitening capacity and a pleasant mouthfeel when added to beverage and food, while being free from artificial additives. In a general embodiment, the present disclosure provides a creamer comprising added sugar, milk fat, milk proteins and optionally natural flavors and free of any artificial additives. Wherein the ratio of milk fat:milk protein is less than 5.3:1; and wherein the Lumisizer instability index of liquid creamer is less than 10.

Abstract: The present disclosure provides a power supply device and a high-power illumination system. The power supply device includes: a housing, where the housing includes a first bottom plate having a first surface on which a first heat sink is provided and a second surface on which a thermal conductive potting layer is provided; and a printed circuit board, where the printed circuit board is located in the housing, the printed circuit board includes a circuit board body and multiple electronic components arranged on the circuit board body, at least part of the multiple electronic components is arranged facing the second surface of the first bottom plate, and the electronic component of the at least part of the multiple electronic components is partially immersed in the thermal conductive potting layer to conduct heat dissipated by the electronic component to the first heat sink for natural heat dissipation of the electronic component.

Abstract: The present invention relates to a soluble beverage powder consisting of dried coffee extract. In particular to a soluble coffee powder having a gold appearance. Further aspects of the invention are a powder mix for preparing a beverage and a process for making a soluble beverage powder.

Abstract: The present disclosure provides a pilot valve and a four-way reversing valve. The pilot valve includes: a valve body, wherein the valve body is a cylinder formed by integrally stretching and having an open end and a closed end, the closed end is defined as a first end, the open end is defined as a second end, the first end of the valve body is provided with an inlet, the valve body is internally provided with a cavity, and the inlet is in communication with the cavity; an inlet pipe, connected with the first end of the valve body, wherein a pipe opening of the inlet pipe is in communication with the inlet; and a limiting structure arranged between the first end of the valve body and the inlet pipe, the limiting structure is used for limiting a relative position of the inlet pipe relative to the valve body.

Abstract: A dimming control method and a dimming circuit are used to control the brightness of a LED. The dimming circuit includes a power conversion unit having an input end, an output end, an inductor, and a switch. When the dimming current signal is higher than or equal to a first current threshold, the switch is controlled such that the power conversion unit operates in a continuous Conduction mode or a boundary Conduction mode; when the dimming current signal is lower than the first current threshold, the switch is controlled such that the power conversion unit operates in a discontinuous Conduction mode; and when the dimming current signal is lower than a second current threshold, the switch is controlled such that the power conversion unit operates in a chopping control mode.

Abstract: A dimming control method and a dimming circuit are used to control the brightness of a LED. The dimming circuit includes a power conversion unit having an input end, an output end, an inductor, and a switch. When the dimming current signal is higher than or equal to a first current threshold, the switch is controlled such that the power conversion unit operates in a continuous Conduction mode or a boundary Conduction mode; when the dimming current signal is lower than the first current threshold, the switch is controlled such that the power conversion unit operates in a discontinuous Conduction mode; and when the dimming current signal is lower than a second current threshold, the switch is controlled such that the power conversion unit operates in a chopping control mode.

Abstract: A dual-speed and dual-core enhanced drilling equipment which has an outer cylinder, a downhole power device, a large cutting head and a small cutting head. Specifically, the large cutting head has a first centerline, a through hole arranged along the first centerline and a first diameter. The outer cylinder, which is sleeved outside the downhole power device, is connected to the upper drill string with the large cutting head to enable rotation among the large cutting head, downhole power device and upper drill string. The downhole power device has a power generation section capable of generating power, and a rotation output section which connects to, and provides independent power for the small cutting head, so that the small cutting head revolves around the first centerline under the driving of the upper drill string while rotating under the driving of the downhole power device.

Abstract: A light module and a manufacturing method are provided. The light module comprises a first and a second substrate separated from a prefabricated substrate along a closed curve, the first substrate is detachable connected and/or fixed with the second substrate; light emitting elements mounted on one of the first and second substrate; and a drive element mounted on the other one of the first and second substrate. The method comprises: determining a closed curve on a prefabricated substrate to separate the prefabricated substrate into a first region and a second region; providing light emitting elements and first electronic element on first surface of the prefabricated substrate; providing second electronic element on second surface of the prefabricated substrate; separating a first and second substrate from the prefabricated substrate along the closed curve; and assembling and connecting the second substrate with the first substrate at a separation opening.

Abstract: A dimming control method and a dimming circuit are used to control the brightness of a LED. The dimming circuit includes a power conversion unit having an input end, an output end, an inductor, and a switch. When the dimming current signal is higher than or equal to a first current threshold, the switch is controlled such that the power conversion unit operates in a continuous Conduction mode or a boundary Conduction mode; when the dimming current signal is lower than the first current threshold, the switch is controlled such that the power conversion unit operates in a discontinuous Conduction mode; and when the dimming current signal is lower than a second current threshold, the switch is controlled such that the power conversion unit operates in a chopping control mode.

Abstract: The present disclosure discloses a device and a method for driving an LED. The device includes: a rectifier circuit for receiving an AC voltage and convert the AC voltage into a first DC voltage; a capacitance-adjusting circuit including a first capacitor, a second capacitor and a switch; and a DC-DC converter for converting the first DC voltage into a second DC voltage, wherein a range of a voltage value of the AC voltage comprises a first AC voltage range and a second AC voltage range, and when the voltage value of the AC voltage is in the first AC voltage range, the capacitance-adjusting circuit has a first capacitance value; and when the voltage value of the AC voltage is in the second AC voltage range, the capacitance-adjusting circuit has a second capacitance value, and the first capacitance value is greater than the second capacitance value.

Abstract: Provided is an anti-islanding protection system. The system is applied to a low-voltage distributed generation resource (DGR) and includes a box, a reverse power protector, a protection module and an output controller. The reverse power protector has an end connected to a first current transformer and has another end connected to the output controller. The reverse power protector is configured to provide reverse power protection for the low-voltage DGR. The output controller has an end connected to the protection module and the reverse power protector and has another end connected to a grid-connection switch of the low-voltage DGR. The output controller is configured to control the grid-connection switch to turn off when reserve power is detected. The protection module has an end connected to a second current transformer and has another end connected to the output controller.

Abstract: One exemplary embodiment provides a dual-speed dual-core enhanced drilling equipment which comprises an outer cylinder, a downhole power device, a large cutting head and a small cutting head, wherein the large cutting head is provided with a first centerline, a through hole arranged along the first centerline and a first diameter; the outer cylinder is sleeved outside the downhole power device and forms an annular space, and the outer cylinder directly or indirectly connects the upper drill string with the large cutting head so that the large cutting head and the downhole power device can rotate together with the upper drill string; the downhole power device is provided with a power generation section capable of generating power and a rotation output section which penetrates through the through hole to be connected with the small cutting head and provides independent power for the small cutting head, so that the small cutting head revolves around the first centerline under the driving of the upper drill strin