Gyro self-starting method, self-starting circuit and starting device

Abstract

The invention discloses a gyro automatic run-up method, an automatic run-up circuit and a run-up apparatus. The automatic run-up circuit comprises a first position sensor, second position sensor, a run-up signal generation circuit, a first power amplification circuit and a second power amplification circuit; the first position sensor and the second position sensor are arranged on a gyro, are used to sense the position of a rotor, generate sensing voltage and further obtain two sensing voltages with orthogonal phases; the run-up signal generation circuit performs additive operation on the sensing voltages of the first position sensor and the second position sensor so as to obtain a first current signal and a second current signal of which the phases are orthogonal; the first power amplification circuit amplified the first current signal and transmits the amplified first current signal to a run-up coil; and the second power amplification circuit amplified the second current signal and transmits the second current signal to a steady-speed coil. The apparatus does not need to arrange a run-up solenoid and a corresponding run-up circuit, so that the gyro design is simple and the volume is small.

Description

technical field [0001] The invention relates to a method for driving a gyroscope to spin up, in particular to a three-degree-of-freedom servo mechanical gyroscope and a self-starting circuit. Background technique [0002] Gyroscope is an instrument that can accurately determine the orientation of moving objects. It is an inertial navigation instrument widely used in modern aviation, navigation, aerospace and national defense industries. Its development is of great importance to a country's industry, national defense and other high The development of science and technology has very important strategic significance. In order to enable the gyro to start up quickly and meet the specific speed requirement during use, the function and significance of the gyro start-up device are very obvious. The start-up mode of a gyroscope in the prior art refers to the start-up mode of the brushless DC motor. The start-up mode controls the power-on sequence of the coils by sensing the position...

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the present invention is that in the prior art, the gyro starting device needs to design the starting wire package and the corresponding control circuit, which makes the gyro design complicated and bulky.

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