Abstract:
A semiconductor power device is provided. The semiconductor power device comprises: a first semiconductor layer (204) of a first conductivity type; a first well region (2021) of a second conductivity type and a second well region (2022) of the second conductivity type; a second semiconductor layer (203) of the first conductivity type, in which a band gap of the second semiconductor layer (203) is greater than that of the first semiconductor layer (204); a first source region (2011) of the first conductivity type and a second source region (2012) of the first conductivity type; a first insulating layer (207); a polysilicon layer (209) formed on the first insulating layer (207); a second insulating layer (211); a first metal layer (208); a third semiconductor layer (206) of the second conductivity type formed below the first semiconductor layer (204); and a second metal layer (210) formed below the third semiconductor layer (206).
Abstract:
A method for preparing a separator is provided. The method comprises steps of: (a) mixing an ultra-high molecular weight polyethylene with a first solvent to form a first mixture, and heating, stirring and filtrating the first mixture to obtain a pre-swollen ultra-high molecular weight polyethylene; (b) dissolving and plasticizing the pre-swollen ultra-high molecular weight polyethylene, a high density polyethylene and a second solvent in a twin screw extruder to obtain a plasticized melt; and (c) casting and cooling the plasticized melt to obtain a cast slab, and stretching, extracting and heat setting the cast slab to obtain the separator, in which the first solvent is a good solvent for a polyolefin, and the second solvent is a plasticizer.
Abstract:
A CdTe solar battery and a method of manufacturing the same are provided. The Cd Te solar battery comprises: a glass substrate (G); a light absorption layer (P) formed on the glass substrate (G); and a first electrode area (B1) and a second electrode area (B2) formed on the light absorption layer (P) respectively, in which the first electrode area (B1) includes a corroded light absorption layer (D), a back contact transition layer (E), and a positive layer (M1) laminated sequentially; the second electrode area (B2) includes a N-type layer (N) and a negative layer (M2) laminated sequentially; the corroded light absorption layer (D) is formed on the light absorption layer (P); the N-type layer (N) is formed on the light absorption layer (P); and the first electrode area (B1) and the second electrode area (B2) are insulated from each other.
Abstract:
A method and a device for enhancing an edge of an image are provided. The method includes : obtaining a first gradient value of a pixel; determining whether the pixel is at a rough edge according to the first gradient value; if yes, obtaining a first edge enhancement value of the pixel and obtaining a first edge enhancement result of the pixel according to the first edge enhancement value; if no, obtaining a second gradient value of the pixel; determining whether the pixel is at a tiny edge according to the second gradient value; if yes, obtaining a second edge enhancement value of the pixel and obtaining a second edge enhancement result of the pixel according to the second edge enhancement value; if no, obtaining the pixel value of the pixel as the edge enhancement result of the pixel; and repeating above steps until each pixel of the image is processed.
Abstract:
A hybrid vehicle (100) is provided. The hybrid vehicle (100) includes: an engine assembly (1); a first radiator (2) adapted to cool the engine assembly (1); a turbocharger (7) adapted to turbocharge air in the turbocharger (7) using gases exhausted from the engine assembly (1); an intercooler (3) adapted to cool the turbocharged air and adapted to supply the cooling air to the engine assembly (1); a driving motor assembly (4); a second radiator (5) disposed in front of the first radiator (2); a first cooling pipe (8) coupled between the second radiator (5) and the driving motor assembly (4); and a second cooling pipe (9) coupled between the second radiator (5) and the intercooler (4). The hybrid vehicle (100) has increased cooling effects, i.e. improved heat dissipation effects.
Abstract:
A charging system for an electric vehicle and a method for controlling charging of an electric vehicle are provided. The charging system comprises: a power battery (10); a charge-discharge socket (20); an external power supply device (1002); a charging connection device (1001); and an energy control device (1003), comprising: a three-level bidirectional DC-AC module (30); a charge-discharge control module (50); and a control module (60) configured to control the charge-discharge control module (50) according to a current working mode of the electric vehicle. The energy control device (1003) and the external power supply device (1002) communicate by transmitting a modulated PWM signal to each other via the charging connection device (1001), and the control module (60) controls the three-level bidirectional DC-AC module (30) and the charge-discharge control module (50) to charge the power battery (10) by the external power supply device (1002).
Abstract:
A vehicle mutual-charging system and a charging connector are provided. The system includes: a first electric vehicle (1002) and a second electric vehicle (1003), each of the first electric vehicle (1002) and the second electric vehicle (1003) including a power battery (10), a battery manager (103), an energy control device (1005) and a charge-discharge socket (20), in which the energy control device (1005) includes: a three-level bidirectional DC-AC module (30), a charge-discharge control module (50),a control module (60); and a charging connector (1004) connected between the first electric vehicle (1002) and the second electric vehicle (1003) and including a first charging gun adaptor connected with the charge-discharge socket (20) of the first electric vehicle and a second charging gun adaptor connected with the charge-discharge socket (20) of the second electric vehicle at both ends thereof respectively.
Abstract:
A charge control system for an electric vehicle and an electric vehicle are provided. The charge control system includes: a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a charge-discharge control module (50); a filtering module (70); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and configured to control the charge-discharge control module (50) to turn on, to sample an output voltage of an external grid by using a connection midpoint of filtering capacitors in the filtering module (70) as a reference point, and to control the three-level bidirectional DC-AC module (30) according to the output voltage of the external grid so as to control the external grid to charge the power battery (10), when the external grid is in an angle connection mode and a current working mode of the electric vehicle is a charge-discharge mode.
Abstract:
A circuit board and a method for fabricating the same are provided. The circuit board comprises: an aluminum-based substrate; an alumina layer formed on at least one surface of the aluminum-based substrate; and a circuit layer formed on the alumina layer. The alumina layer comprises alumina and an element selected from a group consisting of chromium, nickel, a rare earth metal, and a combination thereof.
Abstract:
A solar cell support assembly includes: supports (4); a rotation shaft (1) rotatably supported on the supports (4); a frame (2) connected to the rotation shaft (1) to rotate with the rotation shaft (1) and swung with respect to the rotation shaft (1) in a pitch direction to change a pitch angle formed between the rotation shaft (1) and the frame (2), the frame (2) defining a first portion located above the rotation shaft (1) and a second portion located below the rotation shaft (1); and a adjusting device disposed between the frame (2) and the rotation shaft (1) to adjust the pitch angle.