CN203933142U - Endoscope power down preventing protective device - Google Patents
Endoscope power down preventing protective device Download PDFInfo
- Publication number
- CN203933142U CN203933142U CN201320821012.1U CN201320821012U CN203933142U CN 203933142 U CN203933142 U CN 203933142U CN 201320821012 U CN201320821012 U CN 201320821012U CN 203933142 U CN203933142 U CN 203933142U
- Authority
- CN
- China
- Prior art keywords
- power down
- protective device
- down preventing
- comparison circuit
- preventing protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The technical problems to be solved in the utility model is that traditional power down preventing protective device can not use in the endoscope of real-time Transmission image; for addressing the above problem; a kind of endoscope power down preventing protective device is provided; it comprises the comparison circuit being connected with main battery, and comparison circuit is connected with Execution driven circuit, reserve battery successively.The utility model is provided with reserve battery, under the effect of comparison circuit and Execution driven circuit, can when main battery electric weight is not enough, enable reserve battery, thereby play the effect of power down preventing protection.
Description
Technical field
The utility model relates to a kind of power down preventing protective device, is specifically related to a kind of endoscope power down preventing protective device.
Background technology
Power down preventing protective device is generally to realize by software, and when there is power down, software can be preserved relevant data, when restoring electricity, the data of preserving is recovered; Due to endoscope be real-time Transmission image do not need save data, traditional power down preventing protective device is inapplicable.
Summary of the invention
The technical problems to be solved in the utility model is that traditional power down preventing protective device can not use in the endoscope of real-time Transmission image, for addressing the above problem, provides a kind of endoscope power down preventing protective device.
The purpose of this utility model realizes in the following manner:
Endoscope power down preventing protective device, it comprises the comparison circuit being connected with main battery, comparison circuit is connected with Execution driven circuit, reserve battery successively.
Between described comparison circuit and main battery, be provided with field effect transistor I.
Described executive circuit is triode and the field effect transistor II that driven by triode.
With respect to prior art, the utility model is provided with reserve battery, under the effect of comparison circuit and Execution driven circuit, can when main battery electric weight is not enough, enable reserve battery, thereby play the effect of power down preventing protection.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
[0009] as shown in Figure 1, endoscope power down preventing protective device, it comprises the comparison circuit A being connected with main battery P1, comparison circuit A is connected with Execution driven circuit B, reserve battery P3 successively.Between comparison circuit and main battery, be provided with field effect transistor I Q1, field effect transistor Q1 is electronic switching.Execution driven circuit is triode Q4 and the field effect transistor II Q3 that driven by triode.
[0010] operation principle of the present utility model is: when main battery P1 normally works, field effect transistor Q1 does not open; When the unexpected power down of main battery P1 or voltage drop, field effect transistor Q1 conducting, comparison circuit is started working.Now, comparison circuit compares the main battery voltage signal and the threshold value that detect, if main battery voltage signal lower than threshold value, comparator output triggering signal is to Execution driven circuit, Execution driven circuit is controlled reserve battery and is enabled.
Claims (1)
1. endoscope power down preventing protective device, is characterized in that: it comprises the comparison circuit being connected with main battery, and comparison circuit is connected with Execution driven circuit, reserve battery successively; Between described comparison circuit and main battery, be provided with field effect transistor I; Described Execution driven circuit is triode and the field effect transistor II that driven by triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821012.1U CN203933142U (en) | 2013-12-15 | 2013-12-15 | Endoscope power down preventing protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821012.1U CN203933142U (en) | 2013-12-15 | 2013-12-15 | Endoscope power down preventing protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933142U true CN203933142U (en) | 2014-11-05 |
Family
ID=51828897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320821012.1U Expired - Fee Related CN203933142U (en) | 2013-12-15 | 2013-12-15 | Endoscope power down preventing protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933142U (en) |
-
2013
- 2013-12-15 CN CN201320821012.1U patent/CN203933142U/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: 20141105 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |