Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments, a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions.

Abstract: A converter circuit is disclosed. The converter circuit includes a transformer and a primary circuit connected to the primary side of the transformer, where the primary circuit includes a first switch connected to a ground. The converter circuit also includes a second switch connected to the first switch, and a clamping capacitor connected to the second switch and to the input. The converter circuit also includes a secondary circuit connected to the secondary side of the transformer, where the secondary circuit includes a rectifying element, and an output capacitor connected to the rectifying element. In addition, the output capacitor has a substantial effect on resonance of the converter circuit.

Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.

Abstract: A power circuit is disclosed. The power circuit includes a power capacitor and a power resistor connected to the power capacitor. The power circuit also includes a power integrated circuit, including a GaN-based substrate, a power FET on the substrate, and a driver on the substrate. The driver is configured to charge a gate of the power FET using current from a power node. The power integrated circuit also includes a first power voltage regulator on the substrate, where the driver is configured to receive current from the capacitor through the resistor while the driver charges the gate of the power FET, and where the first power voltage regulator is configured to provide current to the capacitor while the driver does not charge the gate of the power FET.

Abstract: A converter circuit is disclosed. The converter circuit includes a transformer and a primary circuit connected to the primary side of the transformer, where the primary circuit includes a first switch connected to a ground. The converter circuit also includes a second switch connected to the first switch, and a clamping capacitor connected to the second switch and to the input. The converter circuit also includes a secondary circuit connected to the secondary side of the transformer, where the secondary circuit includes a rectifying element, and an output capacitor connected to the rectifying element. In addition, the output capacitor has a substantial effect on resonance of the converter circuit.

Abstract: A system is for contrast agent-based medical imaging. In an embodiment, the system includes a gantry of a medical imaging device; a contrast agent injection device; and a support arm including a frame element, a first connecting element and a second connecting element. In an embodiment, the frame element is connected to a stationary support frame of the gantry via the first connecting element such that at least part of the frame element is mounted to be movable relative to the stationary support frame of the gantry, and the contrast agent injection device is connected to at least part of the frame element via the second connecting element such that the contrast agent injection device is mounted to be movable relative to at least part of the frame element.

Abstract: A half bridge GaN circuit is disclosed. The circuit includes a low side circuit, which has a low side switch, a low side switch driver configured to drive the low side switch, a first level shift circuit configured to receive a first level shift signal, and a second level shift circuit configured to generate a second level shift signal. The half bridge GaN circuit also includes a high side circuit, which has a high side switch configured to be selectively conductive according to a voltage level of a received high side switch signal, and a high side switch driver configured to generate the high side switch signal in response to the level shift signals. A transition in the voltage of the high side switch signal causes the high side switch driver to prevent additional transitions of the voltage level of the high side switch signal for a period of time.

Abstract: An electronic circuit is disclosed. The electronic circuit includes a GaN substrate, a first power supply node on the substrate, an output node, a signal node, and an output component on the substrate, where the output component is configured to generate a voltage at the output node based at least in part on a voltage at the signal node. The electronic circuit also includes a capacitor coupled to the signal node, where, the capacitor is configured to selectively cause the voltage at the signal node to be greater than the voltage of the first power supply node, such that the output component causes the voltage at the output node to be substantially equal to the voltage of the first power supply node.

Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.

Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments, a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions.

Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.

Abstract: Various embodiments may relate to a circuit device and an electronic apparatus. The circuit device may include a main circuit unit, an energy store and output unit and a valley detection unit. The main circuit unit transfers energy to the energy store and output unit according to a detected voltage of the valley detection unit. Furthermore, the circuit device described above also includes a malfunction processing unit for preventing the main circuit unit from transferring energy to the energy store and output unit by adjusting the detected voltage of the valley detection unit in the case that the energy store and output unit has an output malfunction. Hereby, elements in the circuit device may be prevented from being damaged by the output malfunction. Moreover, the circuit device has a simple structure and is cost effective.

Abstract: Disclosed are a method for communications between a terminal and a base station. The method comprises: determining a type of an access point that connects the mobile email client and the server according to information of the access point; establishing a data link between the mobile email client and the server according to the determined type of the access point; performing data exchange between the mobile email client and the server. The solution enables a mobile terminal to send and receive mobile emails as long as the access point is an access point that the mobile emails can use, no matter what kind of access point that the user selects, and no matter what kind of access point that the client account configuration information, which is transmitted by a mobile operator, adopts, thereby ensuring the normal use of the mobile email in a mobile terminal better.

Abstract: The present disclosure provides a method for a mobile email client to access to a server, and a mobile terminal, which include: determining a type of an access point that connects the mobile email client and the server according to information of the access point; establishing a data link between the mobile email client and the server according to the determined type of the access point; performing data exchange between the mobile email client and the server. The solution of the present disclosure enables a mobile terminal to send and receive mobile emails as long as the access point is an access point that the mobile emails can use, no matter what kind of access point that the user selects, and no matter what kind of access point that the client account configuration information, which is transmitted by a mobile operator, adopts, thereby ensuring the normal use of the mobile email in a mobile terminal better.

Abstract: A method and related apparatus used for controlling a peripheral device to transfer data to a bus. The peripheral device has a bus interface circuit and a controller. The method includes storing data outputted from the controller into a first storage block of the bus interface circuit, utilizing the bus interface circuit to simultaneously control the first storage block to output its stored data to the bus and control a second storage block of the bus interface circuit to store data outputted from the controller, and utilizing the bus interface circuit to control the second storage block to output its stored data to the bus.

Abstract: A method and related apparatus used for controlling a peripheral device to transfer data to a bus. The peripheral device has a bus interface circuit and a controller. The method includes storing data outputted from the controller into a first storage block of the bus interface circuit, utilizing the bus interface circuit to simultaneously control the first storage block to output its stored data to the bus and control a second storage block of the bus interface circuit to store data outputted from the controller, and utilizing the bus interface circuit to control the second storage block to output its stored data to the bus.

Abstract: An improved cooling system designed for electronic components such as a central processing unit of a computer with an integrated unit comprising a radiation housing, an absorption housing having a coolant store unit, an absorption layer between the coolant store unit and the electronic component and a circulation generation unit which causes a coolant to flow from the coolant store unit to the absorption layer and back to the coolant store unit through a conduit.

Abstract: A method and related apparatus used for controlling a peripheral device to transfer data to a bus. The peripheral device has a bus interface circuit and a controller. The method includes storing data outputted from the controller into a first storage block of the bus interface circuit, utilizing the bus interface circuit to simultaneously control the first storage block to output its stored data to the bus and control a second storage block of the bus interface circuit to store data outputted from the controller, and utilizing the bus interface circuit to control the second storage block to output its stored data to the bus.

Abstract: An improved cooling system designed for electronic components such as a central processing unit of a computer with an integrated unit comprising a radiation housing, an absorption housing having a coolant store unit, an absorption layer between the coolant store unit and the electronic component and a circulation generation unit which causes a coolant to flow from the coolant store unit to the absorption layer and back to the coolant store unit through a conduit.