Abstract: A switching power supply apparatus has a line-to-ground capacitance C31 between a first winding terminal of a transformer and a conductor portion, and a line-to-ground capacitance C32 between a second winding terminal of the transformer and the conductor portion. The switching power supply apparatus is provided with a capacitor being connected between a first output terminal of a switching circuit and the first winding terminal of the transformer, and a capacitor being connected between a second output terminal of the switching circuit and the second winding terminal of the transformer. Capacitances of the capacitors C21, C22 are set to satisfy: C21>C22, for C31>C32; C21=C22, for C31=C32; and C21<C22, for C31<C32.

Abstract: A switching power supply apparatus is provided with a switching circuit and an even number of transformers. The transformer are provided with: cores each having an identical shape; primary windings each having an identical arrangement around the cores, and each having first and second terminals; and secondary windings each having an identical arrangement around the cores, and each having third and fourth terminals. The primary windings of the transformers are connected so that when a current flows from the first terminal to the second terminal of a first transformer, a current flows from the second terminal to the first terminal of a second transformer. The secondary windings of the transformers are connected so that when a current flows from the third terminal to the fourth terminal of the first transformer, a current flows from the fourth terminal to the third terminal of the second transformer.

Abstract: A power conversion apparatus is provided with a transformer, a primary circuit, and a secondary circuit. The primary circuit is connected to a primary winding of the transformer, has a primary positive bus and a primary negative bus, and includes at least one switching element. The secondary circuit is connected to a secondary winding of the transformer, has a secondary positive bus and a secondary negative bus, and includes at least one switching element. The power conversion apparatus is further provided with a coupling circuit including at least a first capacitor. The power conversion apparatus is configured such that the primary circuit is an unbalanced circuit and the secondary circuit is a balanced circuit, and having the coupling circuit connected between a center tap of the secondary winding of the transformer, and one of the primary positive bus and the primary negative bus.

Abstract: A core (X1) has a shape of a rectangular loop having sides (A1 to A4). The sides (A1, A3) are opposed to each other. The sides (A2, A4) are opposed to each other. A winding (w11) is wound around the core (X1) on the side (A2). A winding (w12) is wound around the core (X1) on the side (A4). A winding (w21) is wound around the core (X1) on the side (A2). A winding (w22) is wound around the core (X1) on the side (A4). The windings (w11, w12) are wound around the core (X1) at equal distances from the side (A1). The windings (w21, w22) are wound around the core (X1) at equal distances from the side (A1). The windings (w11, w12) are connected in series or in parallel to each other. The windings (w21, w22) are connected in series or in parallel to each other.

Abstract: A switching power supply apparatus has a line-to-ground capacitance C31 between a first winding terminal of a transformer and a conductor portion, and a line-to-ground capacitance C32 between a second winding terminal of the transformer and the conductor portion. The switching power supply apparatus is provided with a capacitor being connected between a first output terminal of a switching circuit and the first winding terminal of the transformer, and a capacitor being connected between a second output terminal of the switching circuit and the second winding terminal of the transformer. Capacitances of the capacitors C21, C22 are set to satisfy: C21>C22, for C31>C32; C21=C22, for C31=C32; and C21<C22, for C31<C32.

Abstract: A switching power supply apparatus is provided with a switching circuit and an even number of transformers. The transformer are provided with: cores each having an identical shape; primary windings each having an identical arrangement around the cores, and each having first and second terminals; and secondary windings each having an identical arrangement around the cores, and each having third and fourth terminals. The primary windings of the transformers are connected so that when a current flows from the first terminal to the second terminal of a first transformer, a current flows from the second terminal to the first terminal of a second transformer. The secondary windings of the transformers are connected so that when a current flows from the third terminal to the fourth terminal of the first transformer, a current flows from the fourth terminal to the third terminal of the second transformer.

Abstract: A long-term predictor predicts long-term predicted power indicating temporal changes in consumed power of a customer using a long-term prediction model. A short-term predictor predicts short-term predicted power indicating temporal changes in the consumed power of the customer immediately after a current time, using a short-term prediction model, based on temporal changes in the consumed power of the customer immediately before the current time. A controller controls charging and discharging of a power storage apparatus at intervals based on the long-term predicted power and the short-term predicted power. The controller predicts temporal changes in charging power, discharging power, and charged electric energy of the power storage apparatus, and when the charged electric energy is predicted to reaches a lower limit due to discharging of the power storage apparatus, the controller charges power from the power network to the power storage apparatus in advance.

Abstract: A long-term predictor circuit predicts a long-term predicted power indicating temporal variations in consumed power of a customer, using a long-term prediction model indicating the variations for each moment of clock times. A short-term predictor circuit predicts a short-term predicted power using a short-term prediction model indicating the variations over a time interval before and after a change in a consumed power of each load apparatus, based on the variations over a time interval immediately before a current time, the short-term predicted power indicating the variations over a time interval immediately after the current time. A controller circuit controls charging and discharging of a battery apparatus by setting a charging power or a discharging power based on the long-term predicted power, and controls discharging of the battery apparatus by setting a discharging power based on the short-term predicted power.

Abstract: Provided is a power supply circuit in which a first end of a first inductor is connected to a path linking a first input terminal to a first connection point, a second end of the first inductor is connected to a first end of a bypass capacitor, a first end of a second inductor is connected to a path linking the first input terminal to a second connection point, a second end of the second inductor is connected to a first end of the bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, a first reactor and the first inductor are magnetically coupled to each other, a second reactor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over a first switching element and a second switching element, using an interleaving method.

Abstract: Provided is a power circuit in which a first input terminal is connected to a first end of a second inductor, a second end of the second inductor is connected to a first end of a first reactor, the second end of the second inductor is connected to a first end of a second reactor, the first input terminal is connected to a first end of a first inductor, a second end of the first inductor is connected to a first end of a bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, the first inductor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over first and second switching elements, using an interleaving method.

Abstract: Provided is a power supply circuit in which a first input terminal is connected to a first end of a first reactor, the first input terminal is connected to a first end of a second reactor, a first end of a first inductor is connected the first input terminal, a second end of the first inductor is connected to a first end of a second inductor, a second end of the second inductor is connected to a first end of a bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, the first reactor and the first inductor are magnetically coupled to each other, the second reactor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over first and second switching elements, using an interleaving method.

Abstract: Provided is a power supply circuit in which a first end of a first inductor is connected to a path linking a first input terminal to a first connection point, a second end of the first inductor is connected to a first end of a bypass capacitor, a first end of a second inductor is connected to a path linking the first input terminal to a second connection point, a second end of the second inductor is connected to a first end of the bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, a first reactor and the first inductor are magnetically coupled to each other, a second reactor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over a first switching element and a second switching element, using an interleaving method.

Abstract: A long-term predictor predicts long-term predicted power indicating temporal changes in consumed power of a customer using a long-term prediction model. A short-term predictor predicts short-term predicted power indicating temporal changes in the consumed power of the customer immediately after a current time, using a short-term prediction model, based on temporal changes in the consumed power of the customer immediately before the current time. A controller controls charging and discharging of a power storage apparatus at intervals based on the long-term predicted power and the short-term predicted power. The controller predicts temporal changes in charging power, discharging power, and charged electric energy of the power storage apparatus, and when the charged electric energy is predicted to reaches a lower limit due to discharging of the power storage apparatus, the controller charges power from the power network to the power storage apparatus in advance.

Abstract: A power controller apparatus predicts demand power of a load apparatus, generated power of a power generator apparatus, and inherent stored energy of a battery apparatus. The power controller apparatus calculates excess electric energy and deficient electric energy achieved when the inherent stored energy reaches higher- and lower-limit stored energies, respectively. The power controller apparatus combines at least one first customer facility and at least one second customer facility having the excess electric energy and the deficient electric energy, respectively, and thus, forms at least one group including the first and second customer facilities. For each group, the power controller apparatus determines transmitting power from the first customer facility to the second customer facility, so that stored energy of each of the battery apparatuses of the first and second customer facilities is equal to or less than a first threshold, and equal to or more than a second threshold.

Abstract: Provided is a power circuit in which a first input terminal is connected to a first end of a second inductor, a second end of the second inductor is connected to a first end of a first reactor, the second end of the second inductor is connected to a first end of a second reactor, the first input terminal is connected to a first end of a first inductor, a second end of the first inductor is connected to a first end of a bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, the first inductor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over first and second switching elements, using an interleaving method.

Abstract: Provided is a power supply circuit in which a first input terminal is connected to a first end of a first reactor, the first input terminal is connected to a first end of a second reactor, a first end of a first inductor is connected the first input terminal, a second end of the first inductor is connected to a first end of a second inductor, a second end of the second inductor is connected to a first end of a bypass capacitor, a second end of the bypass capacitor is connected to a second output terminal, the first reactor and the first inductor are magnetically coupled to each other, the second reactor and the second inductor are magnetically coupled to each other, and a control circuit performs switching control over first and second switching elements, using an interleaving method.

Abstract: A power controller apparatus predicts demand power of a load apparatus, generated power of a power generator apparatus, and inherent stored energy of a battery apparatus. The power controller apparatus calculates excess electric energy and deficient electric energy achieved when the inherent stored energy reaches higher- and lower-limit stored energies, respectively. The power controller apparatus combines at least one first customer facility and at least one second customer facility having the excess electric energy and the deficient electric energy, respectively, and thus, forms at least one group including the first and second customer facilities. For each group, the power controller apparatus determines transmitting power from the first customer facility to the second customer facility, so that stored energy of each of the battery apparatuses of the first and second customer facilities is equal to or less than a first threshold, and equal to or more than a second threshold.

Abstract: A long-term predictor circuit predicts a long-term predicted power indicating temporal variations in consumed power of a customer, using a long-term prediction model indicating the variations for each moment of clock times. A short-term predictor circuit predicts a short-term predicted power using a short-term prediction model indicating the variations over a time interval before and after a change in a consumed power of each load apparatus, based on the variations over a time interval immediately before a current time, the short-term predicted power indicating the variations over a time interval immediately after the current time. A controller circuit controls charging and discharging of a battery apparatus by setting a charging power or a discharging power based on the long-term predicted power, and controls discharging of the battery apparatus by setting a discharging power based on the short-term predicted power.

Abstract: A radar apparatus includes: a transmitter which, in operation, transmits, as radar transmission signals, code sequences including a plurality of complementary codes having a code length L in each transmission period; a receiver which, in operation, receives one or more reflected waves including the radar transmission signals reflected by an object and are analog signals; an A/D converter which, in operation, converts the one or more reflected signals into digital signals, which are discrete samples; and a calculator which, in operation, performs a first calculation of correlation between the discrete samples and the code sequence transmitted by the transmitter and a second calculation of correlation between the discrete samples and a partial code sequence obtained by extracting a code length L?Q (L>Q?2) from a tail end of the code sequence transmitted by the transmitter, and that outputs one of a result of the first correlation calculation and a result of the second correlation calculation.

Abstract: A radar apparatus includes: a transmitter which, in operation, transmits, as radar transmission signals, code sequences including a plurality of complementary codes having a code length L in each transmission period; a receiver which, in operation, receives one or more reflected waves including the radar transmission signals reflected by an object and are analog signals; an A/D converter which, in operation, converts the one or more reflected signals into digital signals, which are discrete samples; and a calculator which, in operation, performs a first calculation of correlation between the discrete samples and the code sequence transmitted by the transmitter and a second calculation of correlation between the discrete samples and a partial code sequence obtained by extracting a code length L?Q (L>Q?2) from a tail end of the code sequence transmitted by the transmitter, and that outputs one of a result of the first correlation calculation and a result of the second correlation calculation.