Abstract: A resonant switching power converter circuit including: a switching converter, a control circuit and a pre-charging circuit; wherein the control circuit controls a first switch of the switching converter in a pre-charging mode, so as to control electrical connections between a first power and at least one of plural capacitors of the switching converter, and to control other switches of the switching converter, so as to control the pre-charging circuit to charge at least one capacitor to a predetermined voltage; wherein in a start-up mode, the plural switches control electrical connections of the capacitors according to first and second operation signals, such that after the pre-charging mode ends, the switching converter subsequently operates in the start-up mode; wherein in the start-up mode, the first and second operation signals have respective ON periods, and the time lengths of the ON periods increase gradually.

Abstract: The present invention provides a resonant switched capacitor voltage converter (RSCC), which is coupled to and operates synchronously with another RSCC. The RSCC includes: plural switches, a resonant inductor, a resonant capacitor, and a control circuit. The control circuit controls the switches, so that the resonant capacitor and the resonant inductor are connected in series to each other, to perform resonant operation in a switching period, thus converting an input voltage to an output voltage. The control circuit generates a zero current signal and a first synchronization signal when a resonant inductor current flowing through the resonant inductor is zero. The control circuit turns off at least one corresponding switch according to the zero current signal. The control circuit turns on at least one corresponding switch according to the zero-current signal and a second synchronization signal, so that the RSCC operates in synchronization with at least another RSCC.

Abstract: A grill pan, more particularly, a pan with ribs of grill and grill having the same, has a cambered plane for cooking with gradually decreasing height structure, wherein at least two abreast arranged are ribs saliently disposed, and the distance between two adjacent ribs is less than or equal to twofold of the breadth of each rib. The ribs prevent food from falling on the cooking plane of pan as it becomes floppy when cooking, so that the elimination of grease and the effect of cooking won't be affected.

Abstract: The invention provides a method of controlling watering by monitoring soil moisture, including the steps of: determining a control moisture and a measuring frequency; measuring a soil moisture according to the measuring frequency by a moisture sensor; implementing a watering process when the ratio of the soil moisture to the control moisture is lower than a first control value; implementing a waiting process after the watering process; measuring the soil moisture using the moisture sensor after finishing the waiting process; and implementing the step of measuring the soil moisture according to the measuring frequency by the moisture sensor when the ratio of the soil moisture to the control moisture is higher than a second control value, and implementing the watering process and the step of the waiting process when the ratio of the soil moisture to the control moisture is lower than the second control value.

Abstract: A grill comprises a first and a second electrothermal tube respectively connected to an external power supply by a temperature control unit. At least one regional interval between the first and second electrothermal tube is smaller than the other, and the area forms a regional high temperature area. A regional high temperature area of the grill pan is provided by the two electrothermal tubes, and the two electrothermal tubes are respectively controlled.

Abstract: The present invention relates to a grill pan, which comprises a main body, an electrothermal tube disposed on the lower surface of the main body; wherein the electrothermal tube comprises an normal-temperature area for grilling food and an high-temperature area for burning smoking materials to generate smokes; the normal-temperature area and the high-temperature area are connected integrative, and the two ends of the electrothermal tube have an adapter connected to exterior power supply; there is a smoking box for containing smoking materials disposed on the main body corresponding with the high-temperature area. The present invention achieves the functions of roasting and smoking by only one heating source. That can reduce the cost of production and is convenient for use.

Abstract: A grill pan, more particularly, a pan with ribs of grill and grill having the same, has a cambered plane for cooking with gradually decreasing height structure, wherein at least two abreast arranged are ribs saliently disposed, and the distance between two adjacent ribs is less than or equal to twofold of the breadth of each rib. The ribs prevent food from falling on the cooking plane of pan as it becomes floppy when cooking, so that the elimination of grease and the effect of cooking won't be affected.

Abstract: A grill comprises a first and a second electrothermal tube respectively connected to an external power supply by a temperature control unit; wherein at least one regional interval between said first and second electrothermal tube is smaller than the other, and the area forms a regional high temperature area. Compared with known grills in related art, the present invention provides a regional high temperature area of the grill pan by two electrothermal tubes, and the two electrothermal tubes are respectively controlled, which is operated expediently. When the first and second electrothermal tubes work at the same time, the temperature of the regional high temperature area will rise rapidly, which makes food can be heated rapidly and can cut down heat time. When the high temperature function is off, the power consumption of the grill can be cut down, which will save electric energy and can meet different cooking needs of different foods.

Abstract: The present invention relates to a grill pan, which comprises a main body, an electrothermal tube disposed on the lower surface of the main body; wherein the electrothermal tube comprises an normal-temperature area for grilling food and an high-temperature area for burning smoking materials to generate smokes; the normal-temperature area and the high-temperature area are connected integrative, and the two ends of the electrothermal tube have an adapter connected to exterior power supply; there is a smoking box for containing smoking materials disposed on the main body corresponding with the high-temperature area. The present invention achieves the functions of roasting and smoking by only one heating source. That can reduce the cost of production and is convenient for use.

Abstract: A cooking device includes a base plate, a cooking plate mounted on and cooperating with the base plate to define a receiving space therebetween and formed with at least a drain hole in fluid communication with the receiving space, and a partition unit mounted on the base plate within the receiving space and dividing the receiving space into a warming compartment that is adapted to receive food therein so as to warm the food during cooking, and an oil compartment that is isolated from the warming compartment and that is adapted to receive oil, which is formed on the cooking plate as a result of cooking and which is drained through the drain hole in the cooking plate.

Abstract: A cooking device includes a base plate, a cooking plate mounted on and cooperating with the base plate to define a receiving space therebetween and formed with at least a drain hole in fluid communication with the receiving space, and a partition unit mounted on the base plate within the receiving space and dividing the receiving space into a warming compartment that is adapted to receive food therein so as to warm the food during cooking, and an oil compartment that is isolated from the warming compartment and that is adapted to receive oil, which is formed on the cooking plate as a result of cooking and which is drained through the drain hole in the cooking plate.