3 results about "Magnetic amplifier" patented technology

To provide a highly reliable electronic control device in which an excitation amplifier that outputs an excitation signal to a resolver, a microcomputer, and a power supply IC are mounted, the electronic control device being capable of performing abnormality diagnosis of the excitation amplifier before activation and during operation of a system. An electronic control device includes a power supply IC; a microcomputer to which a power supply voltage is supplied from the power supply IC; an excitation amplifier that excites the resolver; and a diagnostic circuit that monitors an input signal and an output signal of the excitation amplifier and diagnoses abnormality; where the diagnostic circuit compares the input signal with the output signal to perform abnormality diagnosis of the excitation amplifier, and transmits a diagnosis result to the microcomputer.

In a device that utilizes the magnetic force of permanent magnets, a force greater than the applied force is extracted by utilizing the repulsive force between magnets of the same polarity and the attractive force between magnets of opposite polarities. [Solution] A magnet is attached to the tip of a linearly moving shaft of a crank mechanism. Directly below the reciprocating magnet is another reciprocating magnet, and below that, magnets of opposite polarity are arranged in a ring shape, half on each side. This rotating magnet converts the attractive and repulsive forces of the magnets into linear motion, causing the crank mechanism to rotate. The input is the force that rotates a disc-shaped support base to which the rotating magnet is attached, and the output is the rotation axis of the crank mechanism.

The utility model relates to the field of renewable energy sources and can be used in autonomous photovoltaic systems (PVS) for powering AC and DC consumers in domestic, agricultural and industrial settings. The proposed utility model aims to improve the efficiency, stability, and reliability of mini-standalone photovoltaic systems by incorporating a microcontroller-controlled magnetic power amplifier into the energy converter circuit. The mini-standalone photovoltaic power station comprises solar panels, an inverter, a step-up transformer, a battery, a magnetic amplifier, a microcontroller, and a rheostat. Solar panels generate DC electricity, which is converted by an inverter to AC and fed to a step-up transformer to power autonomous loads. A separate solar panel powers the magnetic amplifier and charges the battery. A microcontroller controls the magnetic amplifier, regulating the saturation of its magnetic wire depending on the input voltage, battery status, and load. A variable rheostat allows the gain of the magnetic amplifier to be adjusted depending on the current operating mode of the system. Using a magnetic power amplifier powered by a separate solar energy source allows the regulator to operate independently of the main circuit, increasing efficiency, reducing conversion losses, and ensuring output voltage stability under changing solar radiation and load conditions. The technical result consists in increasing the energy efficiency, reliability and stability of the operation of an autonomous photovoltaic station due to the introduction of a magnetic power amplifier with autonomous power supply and microprocessor control.