Abstract: The present invention provides a chip component-embedded resin multilayer substrate including a laminating body obtained by laminating a plurality of resin layers, a predetermined wiring conductor disposed in the laminating body, and a chip component embedded in the laminating body and having a side terminal electrode. A guarding member electrically isolated from the wiring conductor is provided to cover at least a part of a boundary between the side terminal electrode and the resin layers when viewed from a lamination direction of the laminating body, and the guarding member is formed from a material having a melting point higher than a temperature at which the resin layer begins to flow.

Abstract: A control circuit (microcomputer) is provided in each of two inverter portions. Magnitude of a target waveform signal corresponding to a voltage to be output by each of the inverter portions is varied according to an operation state. The number of revolution of the engine is adjusted according to the larger one of the effective powers output from the two inverter portions. To cope with a temporary output shortage from the AC generator, the output voltage is temporarily lowered and then the output voltage is restored after waiting for the number of revolution of the engine increases.

Abstract: An inverter parallel operation system includes a first inverter adapted to control the output frequency thereof by controlling a control element. The system includes the inverter, and a second inverter and subsequent inverters adapted to control the output frequency thereof by controlling control elements comprising the inverters. Power being fed to a common load after a choke coil provided on the output-side end of a first filter provided on the output side of the first inverter has been connected to a choke coil provided on the output-side end of the second filter on the output side of the second and subsequent inverters. The improvement comprising controlling effective powers output by the first inverter, and the second and subsequent inverters by detecting the effective powers output by both the inverters and controlling any one or both of the output frequencies predetermined in accordance with the effective powers.

Abstract: An image forming apparatus prevents the current of a transfer memory by providing a sufficient margin to accommodate any variation in feeding and timing without limiting the diameter of a photoreceptor. A transfer current controlling unit is included for controlling the transfer current applied to the transfer device and for controlling a TC high-voltage source control unit so that a transfer high-voltage source of the transfer device performs a stepwise current application in the raising process of a transfer output.

Abstract: An inverter parallel operation system comprising a first inverter adapted to control the output frequency thereof by controlling a control element comprising the inverter, and a second inverter and subsequent inverters adapted to control the output frequency thereof by controlling control elements comprising the inverters; power being fed to a common load after a choke coil provided on the output-side end of a first filter provided on the output side of the first inverter has been connected to a choke coil provided on the output-side end of the second filter on the output side of the second and subsequent inverters; the improvement comprising controlling effective powers output by the first inverter, and the second and subsequent inverters by detecting the effective powers output by both the inverters and controlling any one or both of the output frequencies predetermined in accordance with the effective powers.