Nonlinear compensation amplifier for magnetic powder brake-clutches

A non-linear compensation, magnetic powder braking technology, applied in power amplifiers, improving amplifiers to reduce temperature/power voltage changes, etc., can solve the problems of poor closed-loop control stability, not including magnetic powder braking-clutch nonlinear compensation function, etc. Achieve the effect of improving the accuracy of open-loop control

Inactive Publication Date: 2011-04-06
苏州高新区禾云设备设计事务所
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  • Abstract
  • Description
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Problems solved by technology

Therefore, there is almost no control correspondence between the given quantity and the controlled quantity during open-loop operation, and the closed-loop control stability is poor during closed-loop operation
The usual tension control system does not include the nonlinear compensation function for the magnetic powder brake-clutch

Method used

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  • Nonlinear compensation amplifier for magnetic powder brake-clutches
  • Nonlinear compensation amplifier for magnetic powder brake-clutches
  • Nonlinear compensation amplifier for magnetic powder brake-clutches

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Embodiment Construction

[0016] The technical implementation process of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] see figure 1 As shown, a non-linear compensation amplifier for magnetic powder brake-clutch includes a magnetic powder brake-clutch 4, a preamplifier 1 and a power amplifier 3, and it also includes a logarithmic converter 2, and the preamplifier The output end of the amplifier 1 is connected to the input end of the logarithmic converter 2, the output end of the logarithmic converter 2 is connected to the input end of the power amplifier 3, and the output end of the power amplifier 3 is connected to the magnetic powder Brake - winding of clutch 4.

[0018] see figure 2 As shown, the preamplifier 1 includes an operational amplifier A, resistors R1, R2, and R3, and one end of the resistors R1, R2 is connected to each other and then connected to the inverting terminal of the operational amplifier A, and simu...

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Abstract

The invention discloses a nonlinear compensation amplifier for magnetic powder brake-clutches, which comprises a preamplifier, a logarithm converter and a power amplifier, wherein the output end of the preamplifier is connected with the input end of the logarithm converter; the output end of the logarithm converter is connected with the input end of the power amplifier; and the output end of the power amplifier is connected with the winding of the magnetic powder brake-clutch. The amplifier carries out pre-transformation by introducing the logarithm conversion, so that the given input quantity and the controlled output quantity are linearized, namely the input signal X and the output torque T form a linear relationship. By using the amplifier, the open-loop control precision is enhanced, the closed-loop control is simplified and the closed-loop control stability is improved.

Description

technical field [0001] The invention relates to a magnetic powder brake-clutch, in particular to a nonlinear compensating amplifier for a magnetic powder brake-clutch. Background technique [0002] The current-torque characteristic of magnetic powder brake-clutch is nonlinear. Therefore, there is almost no control correspondence between the given quantity and the controlled quantity during open-loop operation, and the closed-loop control stability is poor during closed-loop operation. The usual tension control system does not include the nonlinear compensation function for the magnetic powder brake-clutch. The open-loop control method cannot be used in occasions with high tension requirements. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a non-linear compensating amplifier for magnetic powder brake-clutch that can linearize a given input quantity and a controlled output quanti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/30H03F3/20
Inventor 张晓鹤
Owner 苏州高新区禾云设备设计事务所
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