Analog interface digital control servo amplifier

An analog interface, digital control technology, applied in the field of analog interface digital control steering gear amplifier, can solve the problems of analog rudder system anti-interference, control accuracy disadvantage, application limitation, etc. Debug complex and time-consuming effects

Inactive Publication Date: 2017-03-08
BEIJING AUTOMATION CONTROL EQUIP INST
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Problems solved by technology

However, due to the limitation of the characteristics of the analog operational amplifier circuit, the application of the analog rudder system to other advanced control algorithms e

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  • Analog interface digital control servo amplifier

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, a kind of analog interface digital control servo amplifier of the present invention comprises digital interface 1, analog interface 2, communication circuit 3, conditioning circuit 4, current sensor 5, potentiometer 6, and DSP controller 7, isolation Circuit 8, pre-stage drive circuit 9, power output circuit 10;

[0028] Wherein: the control signal and the feedback signal of the steering gear system are both analog signals; in this embodiment, the signal range of the control signal and the feedback signal is -10V~+10V.

[0029] The feedback signal comes from the potentiometer 6 and the current sensor 5: the potentiometer 6 provides a feedback voltage signal of ±10V to the conditioning circuit 4, and the current sensor 5 monitors the motor current and converts the motor current signal into a motor voltage sig...

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Abstract

A novel analog interface digital control servo amplifier of the invention comprises a digital interface (1), an analog interface (2), a communication circuit (3), a conditioning circuit (4), a current sensor (5), a potentiometer (6), a DSP controller (7), an isolation circuit (8), a pre-driver circuit (9), and a power output circuit (10), wherein the DSP controller (7), the isolation circuit (8), the pre-driver circuit (9) and the power output circuit (10) are connected in series. The technical scheme of the invention is designed based on the fact that the servo control signals of small and medium-sized guided missiles are mainly analog control signals and the advantages in digital circuit control. Compared with a traditional control mode in which an analog circuit is built with an integrated operational amplifier circuit chip, the analog interface digital control servo amplifier has higher adaptability and good performance.

Description

technical field [0001] The invention belongs to the technical field of missile control systems, and in particular relates to an analog interface digital control servo amplifier. Background technique [0002] The development of missile technology is changing with each passing day, and the technical requirements for missiles are getting higher and higher. As the executive mechanism of the missile control system, the rudder system receives the control signal from the integrated control machine on the missile, outputs a position signal proportional to the polarity and size of the control signal, and controls the deflection of the rudder surface. The steering gear amplifier is the control center of the rudder system, and completes the rudder surface deflection command of the integrated control machine by controlling the steering gear. [0003] Small and medium-sized missiles mostly use analog interfaces, and the control signals are analog signals. The traditional analog interfa...

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Application Information

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IPC IPC(8): G05B19/042F42B15/01
CPCG05B19/0423F42B15/01G05B2219/21137
Inventor 吕晨李四保熊官送李浩男徐方洁
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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