CN205091446U - Super capacitor DC power supply status display device - Google Patents
Super capacitor DC power supply status display device Download PDFInfo
- Publication number
- CN205091446U CN205091446U CN201520617066.5U CN201520617066U CN205091446U CN 205091446 U CN205091446 U CN 205091446U CN 201520617066 U CN201520617066 U CN 201520617066U CN 205091446 U CN205091446 U CN 205091446U
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- circuit
- voltage acquisition
- super capacitor
- protection circuit
- current input
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Abstract
The utility model relates to a super capacitor DC power supply status display device, its technical characterstic is: including digital display meter and status display circuit, the status display circuit includes the direct -current input protection circuit, the NULL protection circuit, half -wave rectifier circuit, transformer buffer circuit, it changes dc circuit to exchange, voltage acquisition AD converting circuit, the coding circuit, on direct -current input and NULL insert voltage acquisition AD converting circuit through direct -current input protection circuit and NULL protection circuit respectively, the coding circuit is connected to voltage acquisition AD converting circuit's output, the output of this coding circuit is connected to and carries out output display on the digital display meter. The utility model relates to a rationally, its digital display meter who adopts small -size highly integrated low -power consumption, NULL and direct current output voltage numerical value that can visual display DC power supply conveniently instruct the current operating condition of DC power supply, have characteristics such as small, low power dissipation, operation stability, safe and reliable.
Description
Technical field
The utility model belongs to super capacitor technical field of direct current power, especially a kind of super capacitor direct supply.
Background technology
Super capacitor direct supply Main Function is for the opertaing device of power transmission and distribution, communication facilities provide power supply.As shown in Figure 1, existing super capacitor direct supply 1 is typically provided with three specifications and the identical LED 2 of color.LED light emitting diode is stricter with the requirement of operating voltage for temperature, be generally operational in voltage 3V positive and negative 1%, under being normally operated in 35 DEG C of situations, exceeding normal working voltage or working long hours to make LED temperature raise, it is aging that LED produces rapidly light decay, brightness reduces, and the life-span can shorten a lot, and easily causes damage.
In existing super capacitor direct supply, the light and shade of LED represents different direct supply duties respectively, by the light and shade of observing LED, operation maintenance dimension personnel judge that whether the duty of direct supply is normal.As shown in Figure 2, LED display circuit is made up of divider resistance and LED two parts, this display mode can not control inputs voltage and luminotron working time, LED easily breaks down when exceeding luminotron operating voltage and working long hours, by observing LED, operation maintenance personnel judge that erroneous judgement easily appears in direct supply state, LED works long hours and temperature can be caused to raise simultaneously, easily break down, affect direct supply operation maintenance personnel and judgement is produced to the duty of direct supply.Super capacitor direct supply is as the power-supply unit of exact instrument, it has higher requirement to the numerical value of output voltage, existing display device can not demonstrate required direct supply parameter intuitively and accurately, is unfavorable for that Timeliness coverage gets rid of the fault of direct supply appearance.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of super capacitor direct supply, solves super capacitor direct supply and shows problem that is directly perceived, unstable properties.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of super capacitor direct supply, comprise the digital wash be arranged on super capacitor direct supply casing, at casing internal, status display circuit is installed, described status display circuit comprise direct current input protection circuit, exchange input protection circuit, half-wave rectifying circuit, transformer isolation circuit, exchange turn DC circuit, voltage acquisition A/D change-over circuit, coding circuit, the input end of described direct current input protection circuit is connected with direct current input, and the output terminal of this direct current input protection circuit is connected on voltage acquisition A/D change-over circuit; The input end of described interchange input protection circuit with exchange input and be connected, this interchange input protection circuit, half-wave rectifying circuit, transformer isolation circuit, interchange turn DC circuit and are connected successively, and the output terminal that this interchange turns DC circuit is connected with voltage acquisition A/D change-over circuit; The output terminal of described voltage acquisition A/D change-over circuit connects coding circuit, and the output terminal of this coding circuit is connected on digital wash and carries out output display.
And described voltage acquisition A/D change-over circuit adopts AD7236 module, described coding circuit adopts AT89S52 module.
Advantage of the present utility model and good effect are:
The utility model adopts the digital wash of the integrated low-power consumption of compact height, replace original LED, the interchange input of direct supply and the exact value of VD can be shown by digital wash, indicate the duty that direct supply is current easily, reliable foundation has been had to operation maintenance personnel proper operation direct supply, there is the features such as volume is little, low in energy consumption, stable, safe and reliable, ensure that the normal operation of super capacitor direct supply.
Accompanying drawing explanation
Fig. 1 is the display device schematic appearance of existing super capacitor direct supply;
Fig. 2 is the status display circuit block scheme of existing super capacitor direct supply;
Fig. 3 is display device schematic appearance of the present utility model;
Fig. 4 is status display circuit block scheme of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
A kind of super capacitor direct supply, as shown in Figure 3, comprise the digital wash 2 be arranged on super capacitor direct supply casing 1, at casing internal, status display circuit is installed, as shown in Figure 4, status display circuit comprises direct current input protection circuit, exchange input protection circuit, half-wave rectifying circuit, transformer isolation circuit, interchange turns DC circuit, voltage acquisition A/D change-over circuit, coding circuit, the input end of described direct current input protection circuit is connected with direct current input, the output terminal of this direct current input protection circuit is connected on voltage acquisition A/D change-over circuit, the input end of described interchange input protection circuit with exchange input and be connected, this interchange input protection circuit, half-wave rectifying circuit, transformer isolation circuit, interchange turn DC circuit and are connected successively, the output terminal that this interchange turns DC circuit is connected with voltage acquisition A/D change-over circuit, the output terminal of this voltage acquisition A/D change-over circuit connects coding circuit, and the output terminal of this coding circuit is connected on digital wash and carries out output display.In the present embodiment, voltage acquisition A/D change-over circuit adopts AD7236 module, and described coding circuit adopts AT89S52 module.
Principle of work of the present utility model is: direct current input is connected to voltage acquisition A/D change-over circuit by direct current input protection circuit; voltage acquisition A/D change-over circuit Acquisition Circuit voltage analog signal is also converted on digital signal feeding coding circuit, shows finally by digital wash.Exchange input by exchanging input protection and half-wave rectifying circuit, transformer isolation circuit, exchange and turn DC circuit and be connected on voltage acquisition A/D change-over circuit; voltage acquisition A/D change-over circuit Acquisition Circuit voltage analog signal is also converted on digital signal feeding coding circuit, shows finally by digital wash.
It is emphasized that; embodiment described in the utility model is illustrative; instead of it is determinate; therefore the utility model comprises the embodiment be not limited to described in embodiment; every other embodiments drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope of the utility model protection equally.
Claims (2)
1. super capacitor direct supply, it is characterized in that: comprise the digital wash be arranged on super capacitor direct supply casing, at casing internal, status display circuit is installed, described status display circuit comprises direct current input protection circuit, exchange input protection circuit, half-wave rectifying circuit, transformer isolation circuit, interchange turns DC circuit, voltage acquisition A/D change-over circuit, coding circuit, the input end of described direct current input protection circuit is connected with direct current input, the output terminal of this direct current input protection circuit is connected on voltage acquisition A/D change-over circuit, the input end of described interchange input protection circuit with exchange input and be connected, this interchange input protection circuit, half-wave rectifying circuit, transformer isolation circuit, interchange turn DC circuit and are connected successively, and the output terminal that this interchange turns DC circuit is connected with voltage acquisition A/D change-over circuit, the output terminal of described voltage acquisition A/D change-over circuit connects coding circuit, and the output terminal of this coding circuit is connected on digital wash and carries out output display.
2. a kind of super capacitor direct supply according to claim 1, is characterized in that: described voltage acquisition A/D change-over circuit adopts AD7236 module, and described coding circuit adopts AT89S52 module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617066.5U CN205091446U (en) | 2015-08-14 | 2015-08-14 | Super capacitor DC power supply status display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617066.5U CN205091446U (en) | 2015-08-14 | 2015-08-14 | Super capacitor DC power supply status display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205091446U true CN205091446U (en) | 2016-03-16 |
Family
ID=55482118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520617066.5U Expired - Fee Related CN205091446U (en) | 2015-08-14 | 2015-08-14 | Super capacitor DC power supply status display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205091446U (en) |
-
2015
- 2015-08-14 CN CN201520617066.5U patent/CN205091446U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 |