CN203166846U - Feedback-type high-pass filter of airborne data collector - Google Patents
Feedback-type high-pass filter of airborne data collector Download PDFInfo
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- CN203166846U CN203166846U CN 201320120396 CN201320120396U CN203166846U CN 203166846 U CN203166846 U CN 203166846U CN 201320120396 CN201320120396 CN 201320120396 CN 201320120396 U CN201320120396 U CN 201320120396U CN 203166846 U CN203166846 U CN 203166846U
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- amplifier
- pass filter
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Abstract
The utility model discloses a feedback-type high-pass filter of an airborne data collector. The airborne data collector comprises an analog adapter which is connected between an airborne sensor and a microprocessor, wherein the analog adapter is composed of a photoelectric coupler, an amplifier, a resonator, a high-pass filter, a low-pass filter and an A/D converter which are sequentially connected. The high-pass filter includes a direct-current power supply, two amplifier, eight resistors and three capacitors, wherein one amplifier, four resistors and one capacitor form an amplification circuit; and the high-pass filter is formed by two amplification circuits which are connected in series. The high-pass filter returns signals of negative electrode signal input ends of the two amplifiers to positive signal input ends of the amplifiers of a first amplification circuit. As long as the magnitude of feedback current is controlled appropriately, input signals can be amplified by multiple times at the center frequency position of the amplifiers, and no self-excited oscillation is generated because of over-strong feedback.
Description
Technical field
The utility model relates to a kind of filter, relates in particular to a kind of feedback-type high pass filter of on-board data collector.
Background technology
The data acquisition unit of aircraft flight is the on-board data collector, is mainly used in gathering the various data in the aircraft flight process, mainly comprises various airborne sensors, simulation adapter, microprocessor, communication module, human-computer interaction module and memory module.Because the on-board data collector is realized data acquisition in the high-speed cruising process, and require the signal demand of collection true as far as possible, so require each circuit part in the collector all highly stablely to work reliably.In the existing on-board data collector, though the high pass filter in its simulation adapter can be realized filter function, but signal is not had enlarging function and has loss, if adopt the direct amplifying signal compensation of general amplifier, then may produce self-oscillation by force because feeding back.
The utility model content
The purpose of this utility model with regard to be to provide in order to address the above problem a kind of can amplifying signal and can not produce the feedback-type high pass filter of self-oscillatory on-board data collector.
The utility model is achieved through the following technical solutions above-mentioned purpose:
On-board data collector described in the utility model comprises the simulation adapter that is connected between airborne sensor and the microprocessor, and described simulation adapter is made of the photoelectrical coupler, amplifier, resonator, high pass filter, low pass filter and the A/D converter that connect successively; Described high pass filter comprises DC power supply, first amplifier, second amplifier, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, first electric capacity, second electric capacity and the 3rd electric capacity, first end of described first electric capacity is the signal input part of described high pass filter, second end of described first electric capacity is connected with first end of described second electric capacity and first end of described the 4th resistance respectively, second end of described second electric capacity is connected with first end of described first resistance and the positive signal input of described first amplifier respectively, the negative signal input of described first amplifier is connected with first end of described second resistance and first end of the 3rd resistance respectively, second end of described the 3rd resistance is connected with second end of described the 4th resistance and first end of described the 8th resistance respectively, the output of described first amplifier is connected and is connected with first end of described the 5th resistance and the positive signal input of described second amplifier respectively behind described the 3rd electric capacity, the negative signal input of described second amplifier is connected with first end of described the 6th resistance and first end of described the 7th resistance respectively, second end of described the 7th resistance is connected with second end of described the 8th resistance, the cathode power supply input of described first amplifier all is connected with the positive pole of described DC power supply with the cathode power supply input of described second amplifier, second end of described first resistance, second end of described second resistance, second end of described the 5th resistance all is connected with the negative pole of described DC power supply with second end of described the 6th resistance, and the output of described second amplifier is the signal output part of described high pass filter.
The beneficial effects of the utility model are:
High pass filter of the present utility model is in series by the two-stage amplifying circuit, with the signal feedback of the negative signal input of two amplifiers positive signal input to the amplifier of first order amplifying circuit, as long as can control the size of feedback current well, just can make input signal amplify several times at the centre frequency place of amplifier, can not produce self-oscillation by force because feeding back simultaneously.
Description of drawings
Fig. 1 is the circuit block diagram of on-board data collector described in the utility model;
Fig. 2 is the circuit diagram of feedback-type high pass filter described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, on-board data collector described in the utility model comprises airborne sensor, simulation adapter, microprocessor, touch-screen, memory, local communication module and telecommunication module, and the simulation adapter is made of the photoelectrical coupler, amplifier, resonator, high pass filter, low pass filter and the A/D converter that connect successively.
As shown in Figure 2, described high pass filter comprises the 24V DC power supply, the first amplifier IC1, the second amplifier IC2, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, first capacitor C 1, second capacitor C 2 and the 3rd capacitor C 3, first end of first capacitor C 1 is the signal input part Vi of described high pass filter, second end of first capacitor C 1 is connected with first end of second capacitor C 2 and first end of the 4th resistance R 4 respectively, second end of second capacitor C 2 is connected with first end of first resistance R 1 and the positive signal input of the first amplifier IC1 respectively, the negative signal input of the first amplifier IC1 is connected with first end of second resistance R 2 and first end of the 3rd resistance R 3 respectively, second end of the 3rd resistance R 3 is connected with second end of the 4th resistance R 4 and first end of the 8th resistance R 8 respectively, the output of the first amplifier IC1 is connected and is connected with first end of the 5th resistance R 5 and the positive signal input of the second amplifier IC2 respectively after the 3rd capacitor C 3, the negative signal input of the second amplifier IC2 is connected with first end of the 6th resistance R 6 and first end of the 7th resistance R 7 respectively, second end of the 7th resistance R 7 is connected with second end of the 8th resistance R 8, the cathode power supply input of the cathode power supply input of the first amplifier IC1 and the second amplifier IC2 all is connected with the positive pole of 24V DC power supply, second end of first resistance R 1, second end of second resistance R 2, second end of second end of the 5th resistance R 5 and the 6th resistance R 6 all is connected with the negative pole of 24V DC power supply, and the output of the second amplifier IC2 is the signal output part Vo of described high pass filter.
As shown in Figure 2, the first amplifier IC1, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 and second capacitor C, the 2 common first order amplifying circuits of forming, the second amplifier IC2, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8 and the 3rd capacitor C 3 common second level amplifying circuits of forming, the two-stage amplifying circuit is in series, and with the positive signal input of signal feedback to the first amplifier IC1 of the negative signal input of the signal of the negative signal input of the first amplifier IC1 and the second amplifier IC2, as long as can control the size of feedback current well, just can make input signal amplify several times at the centre frequency place of the first amplifier IC1 and the second amplifier IC2, can not produce self-oscillation by force because feeding back simultaneously.
Claims (1)
1. the feedback-type high pass filter of an on-board data collector, described on-board data collector comprises the simulation adapter that is connected between airborne sensor and the microprocessor, and described simulation adapter is made of the photoelectrical coupler, amplifier, resonator, high pass filter, low pass filter and the A/D converter that connect successively; It is characterized in that: described high pass filter comprises DC power supply, first amplifier, second amplifier, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, first electric capacity, second electric capacity and the 3rd electric capacity, first end of described first electric capacity is the signal input part of described high pass filter, second end of described first electric capacity is connected with first end of described second electric capacity and first end of described the 4th resistance respectively, second end of described second electric capacity is connected with first end of described first resistance and the positive signal input of described first amplifier respectively, the negative signal input of described first amplifier is connected with first end of described second resistance and first end of the 3rd resistance respectively, second end of described the 3rd resistance is connected with second end of described the 4th resistance and first end of described the 8th resistance respectively, the output of described first amplifier is connected and is connected with first end of described the 5th resistance and the positive signal input of described second amplifier respectively behind described the 3rd electric capacity, the negative signal input of described second amplifier is connected with first end of described the 6th resistance and first end of described the 7th resistance respectively, second end of described the 7th resistance is connected with second end of described the 8th resistance, the cathode power supply input of described first amplifier all is connected with the positive pole of described DC power supply with the cathode power supply input of described second amplifier, second end of described first resistance, second end of described second resistance, second end of described the 5th resistance all is connected with the negative pole of described DC power supply with second end of described the 6th resistance, and the output of described second amplifier is the signal output part of described high pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120396 CN203166846U (en) | 2013-03-18 | 2013-03-18 | Feedback-type high-pass filter of airborne data collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320120396 CN203166846U (en) | 2013-03-18 | 2013-03-18 | Feedback-type high-pass filter of airborne data collector |
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| Publication Number | Publication Date |
|---|---|
| CN203166846U true CN203166846U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320120396 Expired - Fee Related CN203166846U (en) | 2013-03-18 | 2013-03-18 | Feedback-type high-pass filter of airborne data collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152000A (en) * | 2013-03-18 | 2013-06-12 | 成都中远信电子科技有限公司 | Feedback type high-pass filter for airborne data collector |
-
2013
- 2013-03-18 CN CN 201320120396 patent/CN203166846U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152000A (en) * | 2013-03-18 | 2013-06-12 | 成都中远信电子科技有限公司 | Feedback type high-pass filter for airborne data collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN FRONTER ELECTRONICS CO., LTD. Free format text: FORMER OWNER: CHENGDU ZHONGYUANXIN ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20141229 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Xiuqin Inventor before: Fan Yong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: FAN YONG TO: LI XIUQIN Free format text: CORRECT: ADDRESS; FROM: 610000 CHENGDU, SICHUAN PROVINCE TO: 518026 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141229 Address after: 518026 A, block 6021, happy center, No. 1112-1117 Shennan Road, Guangdong, Shenzhen, Futian District, China Patentee after: SHENZHEN FULANG ELECTRONICS CO., LTD. Address before: The middle Tianfu Avenue in Chengdu city Sichuan province 610000 No. 1388 1 2 storey building No. 264 Patentee before: Chengdu Zhongyuanxin Electronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20190318 |