A magnetic fluid flywheel drive control circuit

Abstract

The invention relates to a magnetic fluid flywheel drive control circuit, which belongs to the field of circuit design. The generating circuit, the commutation logic and the commutation driving circuit; the driving circuit includes a commutation switch and a current sampling module; the present invention realizes the current control, forward and reverse rotation, acceleration and deceleration control of the product, and has the advantages of simple circuit structure, convenient use, low power consumption, Small size, light weight and long life.

Description

technical field [0001] The invention belongs to the field of circuit design, and relates to a magnetic fluid flywheel drive control circuit. Background technique [0002] The flywheel is an important executive component in the spacecraft attitude control system. The traditional mechanical flywheel is a high-speed rotating rotor with a certain mass size and mass distribution driven by a drive motor. The traditional mechanical flywheel has a relatively complex structure and is difficult to miniaturize; due to mechanical wear, it is difficult to achieve long life; at the same time, there are problems in vibration and noise. The principle of the magnetic fluid flywheel is that by actively adjusting the electric field strength at both ends of the conductive liquid, a high-density current is generated inside the fluid, and the conductive liquid is rotated under the action of the magnetic field. The moment of inertia of the flywheel is achieved by the conductive liquid. Compared...

AI Technical Summary

Problems solved by technology

The drive control circuit of the traditional flywheel drives and controls the DC motor. The maximum working current of the controlled object is generally 1A to 3A, and the impedance is generally 1Ω to 2Ω; up to 30A), low impedance (lower than 5mΩ), if the traditional DC motor drive circuit is directly applied to the magnetic fluid flywheel, there will be problems such as excessive circuit power consumption, complex circuit structure, and difficulty in miniaturization. Applications in fluid flywheels

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