CN204945294U - With the incremental type encoder offline detection circuit of UVW magnetic-pole signals - Google Patents
With the incremental type encoder offline detection circuit of UVW magnetic-pole signals Download PDFInfo
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- CN204945294U CN204945294U CN201520677946.1U CN201520677946U CN204945294U CN 204945294 U CN204945294 U CN 204945294U CN 201520677946 U CN201520677946 U CN 201520677946U CN 204945294 U CN204945294 U CN 204945294U
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Abstract
The utility model discloses a kind of incremental type encoder offline detection circuit with UVW magnetic-pole signals, it adopts three d type flip flops be connected in series successively, and the input of the first d type flip flop connects high level, and the output of 3d flip-flop is the output of broken string mistake; Be the clock signal of three d type flip flops respectively with U, V, W signal; With the reset signal that A phase/or B phase signals are three d type flip flops; When A phase/or B phase signals broken string, after the triggering through U, V, W signal, high level signal will be transferred in the output of 3d flip-flop, now then detects that A phase/or B phase signals have broken.After adopting such scheme, the utility model only needs three d type flip flops just can realize being with the incremental encoder A phase of UVW magnetic-pole signals or the burn out detection of B phase, and detection method and circuit are very simple, and practicality is stronger.
Description
Technical field
The utility model belongs to code device signal process field, relates to incremental type encoder offline detection circuit specifically.
Background technology
Incremental encoder is a kind of sensor that a kind of displacement by rotation is converted into digit pulse output, because it is durable, antijamming capability is strong, precision is high, use the advantages such as simple, has important application in a lot of fields, particularly in motion control field.
Incremental encoder divides two kinds, and one is ABZ signal band UVW magnetic-pole signals, and another kind then only has ABZ signal, and wherein A phase and B phase signals are two pulse signals orthogonal each other, and Z phase is initial point signal, and UVW phase is the magnetic-pole signals of 3 roads, 120 degree of phase differential each other.The utility model application for be the incremental encoder of band UVW magnetic-pole signals.
Taking incremental encoder as the control occasion of feedback, when occurring that A phase or B phase break, if can not report to the police rapidly, just probably control is caused to make mistakes, serious meeting causes the injures and deaths of physical damage and personnel, so the burn out detection of scrambler is extremely important for system.
The incremental encoder disconnection detection method of existing band UVW magnetic-pole signals, synthesis steps is loaded down with trivial details, and testing circuit is complicated, and practicality is poor.
Utility model content
The purpose of this utility model is to provide a kind of incremental type encoder offline detection circuit of simple and practical band UVW magnetic-pole signals.
To achieve these goals, the utility model adopts following technical scheme:
With the incremental type encoder offline detection circuit of UVW magnetic-pole signals, comprise the first d type flip flop, the second d type flip flop and 3d flip-flop, U, V, W signal of incremental encoder is connected respectively the clock signal terminal to the first d type flip flop, the second d type flip flop and 3d flip-flop; The input end of the first d type flip flop connects high level, and the output terminal of the first d type flip flop is connected to the input end of the second d type flip flop, and the output terminal of the second d type flip flop is connected to the input end of 3d flip-flop, and the output terminal of 3d flip-flop is the wrong output terminal of broken string; The A phase/of incremental encoder or B phase signals are connected to the reset signal end of the first d type flip flop, the second d type flip flop and 3d flip-flop respectively.
The A phase/of described incremental encoder or B connect with signal to the input end of an edge sense circuit, and the output terminal of this edge sense circuit connects the reset signal end of the first d type flip flop, the second d type flip flop and 3d flip-flop respectively.
After adopting such scheme, the incremental type encoder offline detection circuit of the utility model band UVW magnetic-pole signals, only need three d type flip flops just can realize being with the incremental encoder A phase of UVW magnetic-pole signals or the burn out detection of B phase, that is, A phase detects together with B phase also only needs six d type flip flops.Detection method and circuit are very simple, and practicality is stronger.
Further, the A phase/of incremental encoder or B phase signals can be converted into the reset signal as the first d type flip flop, the second d type flip flop and 3d flip-flop after corresponding edge signal by the utility model.Thus when can avoid breaking, the A phase/of incremental encoder or the uncertain testing circuit that causes of B phase level cannot export broken string rub-out signal, improve testing circuit functional reliability.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Testing circuit for incremental encoder A, B two-phase in the utility model is identical, is only described for a phase (A phase or B phase) wherein below.
The incremental type encoder offline detection circuit of the utility model band UVW magnetic-pole signals, as shown in Figure 1, comprise the first d type flip flop D-FF1, the second d type flip flop D-FF2 and 3d flip-flop D-FF3, U, V, W signal of incremental encoder is connected respectively the clock signal terminal to the first d type flip flop D-FF1, the second d type flip flop D-FF2 and 3d flip-flop D-FF3; The input end of the first d type flip flop D-FF1 connects high level, the output terminal of the first d type flip flop D-FF1 is connected to the input end of the second d type flip flop D-FF2, the output terminal of the second d type flip flop D-FF2 is connected to the input end of 3d flip-flop D-FF3, and the output terminal of 3d flip-flop D-FF1 is the wrong output terminal of broken string; The A phase/of incremental encoder or B phase signals are connected to the reset signal end of the first d type flip flop, the second d type flip flop and 3d flip-flop respectively.
Further, the A phase/of incremental encoder or B connect with signal to the input end of an edge sense circuit, and the output terminal of this edge sense circuit connects the reset signal end of the first d type flip flop D-FF1, the second d type flip flop D-FF2 and 3d flip-flop D-FF3 respectively.Obtain the A phase/of incremental encoder or the edge signal of B phase by edge sense circuit, the A phase/of incremental encoder during broken string or the uncertain testing circuit that causes of B phase level can be avoided cannot to export broken string rub-out signal, improve testing circuit functional reliability.
The principle of work of the incremental type encoder offline detection circuit of the utility model band UVW magnetic-pole signals is as follows:
When A phase/or the B phase signals broken string of incremental encoder, after the triggering of U, V, W signal through incremental encoder, high level signal will be transferred in the output of 3d flip-flop D-FF3, now then detects that the A phase/of incremental encoder or B phase signals have broken;
If the A phase/of incremental encoder or B phase no broken string, then at the During of U, V, W signal of incremental encoder, first d type flip flop D-FF1, the second d type flip flop D-FF2 and 3d flip-flop D-FF3 have resetted by the A phase/of incremental encoder or the input of B phase, the input of the first d type flip flop D-FF1 just can not pass to 3d flip-flop D-FF3, then broken string mistake exports and remains low level, judges A phase/or B phase no broken string of incremental encoder thus.
Claims (2)
1. be with the incremental type encoder offline detection circuit of UVW magnetic-pole signals, it is characterized in that: comprise the first d type flip flop, the second d type flip flop and 3d flip-flop, U, V, W signal of incremental encoder is connected respectively the clock signal terminal to the first d type flip flop, the second d type flip flop and 3d flip-flop; The input end of the first d type flip flop connects high level, and the output terminal of the first d type flip flop is connected to the input end of the second d type flip flop, and the output terminal of the second d type flip flop is connected to the input end of 3d flip-flop, and the output terminal of 3d flip-flop is the wrong output terminal of broken string; The A phase/of incremental encoder or B phase signals are connected to the reset signal end of the first d type flip flop, the second d type flip flop and 3d flip-flop respectively.
2. the incremental type encoder offline detection circuit of band UVW magnetic-pole signals according to claim 1, it is characterized in that: the A phase/of described incremental encoder or B connect with signal to the input end of an edge sense circuit, the output terminal of this edge sense circuit connects the reset signal end of the first d type flip flop, the second d type flip flop and 3d flip-flop respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677946.1U CN204945294U (en) | 2015-09-02 | 2015-09-02 | With the incremental type encoder offline detection circuit of UVW magnetic-pole signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520677946.1U CN204945294U (en) | 2015-09-02 | 2015-09-02 | With the incremental type encoder offline detection circuit of UVW magnetic-pole signals |
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| Publication Number | Publication Date |
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| CN204945294U true CN204945294U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520677946.1U Withdrawn - After Issue CN204945294U (en) | 2015-09-02 | 2015-09-02 | With the incremental type encoder offline detection circuit of UVW magnetic-pole signals |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067943A (en) * | 2015-09-02 | 2015-11-18 | 泉州市桑川电气设备有限公司 | Disconnection detection method for incremental encoders with UVW pole signals and circuit thereof |
| CN107255766A (en) * | 2017-06-30 | 2017-10-17 | 深圳市英威腾电气股份有限公司 | The break detection circuit and its connection circuit of a kind of incremental encoder |
-
2015
- 2015-09-02 CN CN201520677946.1U patent/CN204945294U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067943A (en) * | 2015-09-02 | 2015-11-18 | 泉州市桑川电气设备有限公司 | Disconnection detection method for incremental encoders with UVW pole signals and circuit thereof |
| CN105067943B (en) * | 2015-09-02 | 2017-11-03 | 泉州市桑川电气设备有限公司 | Incremental encoder disconnection detection method and its circuit with UVW magnetic-pole signals |
| CN107255766A (en) * | 2017-06-30 | 2017-10-17 | 深圳市英威腾电气股份有限公司 | The break detection circuit and its connection circuit of a kind of incremental encoder |
| CN107255766B (en) * | 2017-06-30 | 2019-12-03 | 深圳市英威腾电气股份有限公司 | A kind of break detection circuit and its connection circuit of incremental encoder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20171103 |
|
| AV01 | Patent right actively abandoned |