CN202887039U - Constant current electromagnetic signal generation device - Google Patents
Constant current electromagnetic signal generation device Download PDFInfo
- Publication number
- CN202887039U CN202887039U CN 201220546889 CN201220546889U CN202887039U CN 202887039 U CN202887039 U CN 202887039U CN 201220546889 CN201220546889 CN 201220546889 CN 201220546889 U CN201220546889 U CN 201220546889U CN 202887039 U CN202887039 U CN 202887039U
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- load
- circuit
- module
- signal
- alternating signal
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- Expired - Fee Related
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- Amplifiers (AREA)
Abstract
The utility model belongs to the technical field of a signal generation device and particularly relates to a constant current electromagnetic signal generation device. The constant current electromagnetic signal generation device comprises a power source module, an alternating signal generation circuit, a feedback circuit and a protection circuit. The alternating signal generation circuit consists of a driving module and a microprogrammed control unit (MCU) module, the driving module can load a load, and the MCU module can produce an alternating signal, and outputs the alternating signal on the load through the driving module. The feedback circuit collects the size of the load which is loaded on the driving module and feeds back a control signal to the power source circuit, so that the power source circuit outputs a voltage which changes with the size of the load, the load on the driving module obtains constant current, the alternating signal which is outputted by the load does not change with the length and thickness of a wire and change of materials, a stable alternating signal is provided, a stable magnetic signal is generated, and a long wire and a large load can be linked.
Description
Technical field
The utility model belongs to the signal generation apparatus technical field, refers in particular to a kind of Constant Electric Current magnetic signal generating means.
Background technology
At present, electromagnetic signal generating means on the market exists mostly: the load that can add is large not, and signal is stable not, and signal such as can reduce along with the increase of load at the shortcoming.
Summary of the invention
The purpose of this utility model is to provide Constant Electric Current magnetic signal generating means a kind of simple in structure, safe and reliable.
For achieving the above object, the utility model provides following technical scheme: a kind of Constant Electric Current magnetic signal generating means comprises
Power module is used for to other module, circuit and components and parts power supply;
Alternating signal produces circuit, and it comprises driver module and MCU module, but described driver module offered load, and described MCU module can produce alternating signal, and by driver module this alternating signal is exported in load;
Feedback circuit, it be used for to gather the load that is carried on the driver module, and feedback control signal makes voltage with the size variation of load of power circuit output to power circuit, thereby makes the load on the driver module obtain constant electric current;
Holding circuit, it is used for amplifying the current signal of feedback circuit, and according to the action of current signal control MCU module, thereby control and protect whole circuit.
The utility model beneficial effect compared to existing technology is: alternating signal of the present utility model produces circuit, comprise driver module and MCU module, but the driver module offered load, the MCU module can produce alternating signal, and by driver module this alternating signal is exported in load; The feedback circuit collection is carried in the load on the driver module, and feedback control signal is to power circuit, makes voltage with the size variation of load of power circuit output, thereby makes the load on the driver module obtain constant electric current; Holding circuit is amplified the current signal of feedback circuit; and according to the action of current signal control MCU module; thereby control and protect whole circuit; so that the alternating signal in the output load is not along with the variation of the length of wire, thickness, material and change; more stable alternating signal is provided; thereby produce more stable field signal, can link longer wire, larger load.
Description of drawings
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is electronic component of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Shown in Fig. 1-2, a kind of Constant Electric Current magnetic signal generating means comprises
Power module is used for to other module, circuit and components and parts power supply;
Alternating signal produces circuit, and it comprises driver module and MCU module, but described driver module offered load, and described MCU module can produce alternating signal, and by driver module this alternating signal is exported in load;
Feedback circuit, it be used for to gather the load that is carried on the driver module, and feedback control signal makes voltage with the size variation of load of power circuit output to power circuit, thereby makes the load on the driver module obtain constant electric current;
Holding circuit, it is used for amplifying the current signal of feedback circuit, and according to the action of current signal control MCU module, thereby control and protect whole circuit.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (1)
1. a Constant Electric Current magnetic signal generating means is characterized in that: comprise
Power module is used for to other module, circuit and components and parts power supply;
Alternating signal produces circuit, and it comprises driver module and MCU module, but described driver module offered load, and described MCU module can produce alternating signal, and by driver module this alternating signal is exported in load;
Feedback circuit, it be used for to gather the load that is carried on the driver module, and feedback control signal makes voltage with the size variation of load of power circuit output to power circuit, thereby makes the load on the driver module obtain constant electric current;
Holding circuit, it is used for amplifying the current signal of feedback circuit, and according to the action of current signal control MCU module, thereby control and protect whole circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546889 CN202887039U (en) | 2012-10-24 | 2012-10-24 | Constant current electromagnetic signal generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220546889 CN202887039U (en) | 2012-10-24 | 2012-10-24 | Constant current electromagnetic signal generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887039U true CN202887039U (en) | 2013-04-17 |
Family
ID=48078446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220546889 Expired - Fee Related CN202887039U (en) | 2012-10-24 | 2012-10-24 | Constant current electromagnetic signal generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887039U (en) |
-
2012
- 2012-10-24 CN CN 201220546889 patent/CN202887039U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20141024 |
|
| EXPY | Termination of patent right or utility model |