Stepping current source device based on virtual instrument technology
A technology of virtual instrument and stepping current, applied in the field of virtual instrument, can solve the problems of large energy loss and complex design structure, and achieve the effect of avoiding device damage and flexible control mode
Active Publication Date: 2014-12-24
HUAWEI TEHCHNOLOGIES CO LTD
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Problems solved by technology
In order to ensure that the disconnection of the motor power supply and the output of the position signal do not interfere with each other, it is necessary to set up multiple mutually isolated power supplies and corresponding interface circuits at the same time. Such a design structure is relatively complicated and the energy loss is large.
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[0023] In order to enable the public to fully understand the technical essence and beneficial effects of the present invention, the applicant will describe in detail the specific implementation of the present invention below in conjunction with the accompanying drawings, but the applicant's description of the embodiments is not a limitation to the technical solution. Changes in the form of the inventive concept rather than in substance should be regarded as the protection scope of the present invention.
[0024] see figure 1 , a stepping current source device based on virtual instrument technology, including a current generation circuit, a stepping motor drive circuit, a neutral signal detection circuit, an input signal interface circuit, a current measurement circuit, an output signal interface circuit, a control switching circuit and a built-in A computer with a data acquisition card and a virtual instrument operating platform, the computer with a built-in data acquisition c...
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The invention relates to a stepping current source device based on a virtual instrument technology, and belongs to the technical field of virtual instruments. The stepping current source device comprises a current generating circuit, a stepping motor driving circuit, a neutral position signal detecting circuit, an input signal interface circuit, a current measuring circuit, an output signal interface circuit, a control switching circuit and a computer internally provided with a data collecting card and a virtual instrument operating platform, the computer internally provided with the data collecting card and the virtual instrument operating platform is connected with the stepping motor driving circuit, the neutral position signal detecting circuit, the input signal interface circuit, the current measuring circuit and the output signal interface circuit, the current generating circuit is connected with the stepping motor driving circuit, the neutral position signal detecting circuit, the input signal interface circuit, the current measuring circuit and the control switching circuit, and the control switching circuit is connected with the output signal interface circuit. The stepping current source device based on the virtual instrument technology has the advantages of being large in output circuit, wide in regulating range and high in precision, improving zero returning efficiency, and simplifying circuit connection.
Description
technical field [0001] The invention belongs to the technical field of virtual instruments, and in particular relates to a stepping current source device based on virtual instrument technology. Background technique [0002] In recent years, as a large number of new technologies such as electronic technology, computer network and digital communication technology, field bus technology and artificial intelligence have been applied to low-voltage electrical products, low-voltage electrical products have begun to develop into high-performance, multi-functional, high-precision, high-reliability , high degree of automation and intelligent direction. The upgrading of low-voltage electrical products is changing with each passing day, and its requirements for testing devices are also getting higher and higher. Intelligent low-voltage electrical appliances must undergo various performance tests before leaving the factory, and they can only leave the factory after passing the test. In...
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IPC IPC(8): G05F1/10
Inventor 徐惠钢杨云飞谢启吴正阳徐伟徐卫
Owner HUAWEI TEHCHNOLOGIES CO LTD