摘要:
According to the disclosure, a lead frame is provided, which includes: a first island and a second island that are arranged side by side; an outer peripheral frame; first leads that extend in a second direction perpendicular to the first direction; second leads that extend in the second direction; a first coupling portion that couples the first leads to the frame; a second coupling portion that couples the second leads to the frame; an intermediate portion formed between the first and second coupling portions in the first direction such that it extends in the second direction to terminate before the space between the first and second islands; and a deformation restraining portion formed or provided in at least one of the first leads, the second leads, the first and the second coupling portions and configured to restrain deformations of the first and second leads during a molding process.
摘要:
An electric power conversion system includes: a primary electric power conversion circuit including a primary coil connected to a connection point between a plurality of transistors; a secondary electric power conversion circuit configured similarly to the primary electric power conversion circuit and including a secondary coil corresponding to the primary coil; and a control circuit controlling transfer of electric power between the primary and secondary electric power conversion circuits. The control circuit executes feedforward control for setting one of an on/off ratio of a terminal voltage signal of the primary coil and an on/off ratio of a terminal voltage signal of the secondary coil, in response to at least one of fluctuations in voltage ratio between both waveforms and fluctuations in phase symmetry between both waveforms, when the terminal voltage waveform of the primary coil and the terminal voltage waveform of the secondary coil are different from each other.
摘要:
In an IC card, cholesteric liquid crystal layers reflecting red light and a cholesteric liquid crystal layer reflecting blue light, in a planar state, are laminated, and a voltage is respectively applied to the laminated cholesteric liquid crystal layers, to change the orientation of the cholesteric liquid crystals between the planar state and a focal conic state, so as to transmit or reflect light, thereby displaying predetermined information.
摘要:
A pair of bags are provided on a front side upper portion of a glove main body of each of a pair of gloves so that the bags are aligned traversely on each glove. The bags are knitted goods similar to the glove main body, and the inside of the bags is in communication with the inside of the glove main body.
摘要:
A vehicular power supply apparatus includes: a first port to which an electric load is connected; a second port to which a first storage apparatus is connected; a third port to which a second storage apparatus is connected; a fourth port to which a power generation apparatus is connected; a first switch disposed between the first and second ports; a second switch disposed between the second and fourth ports; a third switch disposed between the first and third ports; a fourth switch disposed between the third and fourth ports; and a condition switching unit configured to switch between a first condition in which the first and fourth switches are conductive, the second and third switches are cut off, and a second condition in which the first sand fourth switches are cut off, the second and the switches are conductive.
摘要:
According to the disclosure, a lead frame is provided, which includes: a first island and a second island that are arranged side by side; an outer peripheral frame; first leads that extend in a second direction perpendicular to the first direction; second leads that extend in the second direction; a first coupling portion that couples the first leads to the frame; a second coupling portion that couples the second leads to the frame; an intermediate portion formed between the first and second coupling portions in the first direction such that it extends in the second direction to terminate before the space between the first and second islands; and a deformation restraining portion formed or provided in at least one of the first leads, the second leads, the first and the second coupling portions and configured to restrain deformations of the first and second leads during a molding process.
摘要:
An electric power conversion system includes: a primary electric power conversion circuit including a primary coil connected to a connection point between a plurality of transistors; a secondary electric power conversion circuit configured similarly to the primary electric power conversion circuit and including a secondary coil corresponding to the primary coil; and a control circuit controlling transfer of electric power between the primary and secondary electric power conversion circuits. The control circuit executes feedforward control for setting one of an on/off ratio of a terminal voltage signal of the primary coil and an on/off ratio of a terminal voltage signal of the secondary coil, in response to at least one of fluctuations in voltage ratio between both waveforms and fluctuations in phase symmetry between both waveforms, when the terminal voltage waveform of the primary coil and the terminal voltage waveform of the secondary coil are different from each other.
摘要:
An electric power conversion system includes: a primary circuit including a first port, a second port and a primary electric power conversion unit; and a secondary circuit magnetically coupled to the primary circuit by a transformer and including a third port, a fourth port and a secondary electric power conversion unit. The electric power conversion system is configured to convert electric power between any two of the four ports with the use of the primary and secondary electric power conversion units, and convert electric power between the first and second ports and between the third and fourth ports with the use of electric power conversion circuit portions other than a faulty electric power conversion circuit portion among a plurality of electric power conversion circuit portions configured in the primary and secondary electric power conversion units.
摘要:
An electric power conversion system includes: a primary conversion circuit; a secondary conversion circuit magnetically coupled to the primary conversion circuit via a transformer; and a failure detection unit configured to detect a failure of any one of switching elements by causing each of the switching elements to switch between an on state and an off state. The switching elements constitute a full-bridge circuit of a conversion circuit to which input voltage is supplied from a corresponding one of center taps of the transformer. The full-bridge circuit is one of a primary full-bridge circuit of the primary conversion circuit and a secondary full-bridge circuit of the secondary conversion circuit.
摘要:
A pair of bags are provided on a front side upper portion of a sock main body of each of a pair of socks so that the bags are aligned traversely. The bags are knitted goods similar to the sock main body, and the inside of the bags is in communication with the inside of the sock main body.