CN104360728A - Industrial computer power supply switch control circuit - Google Patents
Industrial computer power supply switch control circuit Download PDFInfo
- Publication number
- CN104360728A CN104360728A CN201410717564.7A CN201410717564A CN104360728A CN 104360728 A CN104360728 A CN 104360728A CN 201410717564 A CN201410717564 A CN 201410717564A CN 104360728 A CN104360728 A CN 104360728A
- Authority
- CN
- China
- Prior art keywords
- relay
- power supply
- light emitting
- emitting diode
- diode
- 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.)
- Pending
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
- G06F1/3215—Monitoring of peripheral devices
- G06F1/3218—Monitoring of peripheral devices of display devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3265—Power saving in display device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/325—Display of status information by lamps or LED's
Abstract
The invention relates to an industrial computer power supply switch control circuit, which comprises a display, a switch power supply, a relay KM, a capacitor C1, a capacitor C2, a diode D1, a protection diode D2, a light emitting diode D3 and a linkage switch, wherein a coil of the relay KM is connected in series with the light emitting diode D3, the capacitor C1 and the light emitting diode D3 are connected in parallel, the protection diode D2 is connected in parallel with the coil of the relay KM, the capacitor C2 and the coil of the relay KM are connected in parallel with a located branch of the light emitting diode D3 to form a first branch, the 12V voltage output end of the switch power supply is connected in series with the protection diode D2 and then provides voltage for the first branch, a first loop is formed, and a normally open contact of the relay KM is connected in series onto a power supply loop of the display. The industrial computer power supply switch control circuit has the advantages that the display is enabled to be completely turned off after a host is turned off, in addition, the manual turning-off can be realized, the principle is simple, and the reliability is high.
Description
Technical field
The present invention relates to a kind of industrial computer power on-off control circuit.
Background technology
Industrial computer is mainly used in the aspect such as Industry Control, test, its structure is different according to application difference, mainly comprise display and main frame, for the power supply of display and main frame, mainly contain two kinds of modes at present: one is that display and main frame are powered respectively, another kind is that display and main frame share a Switching Power Supply.A Switching Power Supply is shared for display and main frame, is also provided with power knob over the display, and is provided with power light, by software systems to after main frame shutdown, need the power knob pressed again on display, be similar to computer monitor.But in use find, operating personnel can not manually go to turn off display power supply substantially, only namely left after main frame shutdown by software systems, therefore there is electric energy loss in display, do not meet energy-conserving and environment-protective theory.
Summary of the invention
In order to overcome existing the problems referred to above, the object of the present invention is to provide a kind of industrial computer power on-off control circuit thoroughly automatically turning off display power supply while turning off host power supply.
In order to solve the problem, the present invention is by the following technical solutions: a kind of industrial computer power on-off control circuit, comprise display and Switching Power Supply, it is characterized in that: also comprise relay K M, electric capacity C1, electric capacity C2, diode D1, protection diode D2 and light emitting diode D3, the coil of described relay K M is connected with light emitting diode D3, electric capacity C1 is in parallel with light emitting diode D3, the coils from parallel connection of coils of protection diode D2 and relay K M, the coil of electric capacity C2 and relay K M and light emitting diode D3 place branch circuit parallel connection; The first loop is formed together with above-mentioned components and parts after the 12V voltage output end series diode D2 of described Switching Power Supply; The normally opened contact of described relay K M is serially connected on monitor power supply loop.
Further, in order to make this circuit, there is stronger reliability, it also comprises the linked switch of band dynamic circuit breaker and moving together contact, a series connection linked switch break contact on described first loop, the moving together contact of linked switch is in parallel with the normally opened contact of relay K M, like this, can manual operation after relay circuit goes wrong.
Further, the button of described linked switch is arranged over the display.
Further, described light emitting diode D3 is arranged over the display.
The invention has the beneficial effects as follows: it achieves the automatic cut-out of display circuit by relay, and after ensure that Host Shutdown, display is thoroughly closed; It is also provided with linked switch, can manual-lock when auto shut off circuit fault; In addition, light emitting diode D3 can discharge to relay coil, again can as the power light of display.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described further:
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated:
As shown in Figure 1, specific embodiments of the invention comprise display, Switching Power Supply, relay K M, electric capacity C1, electric capacity C2, diode D1, protection diode D2, light emitting diode D3 and are with the linked switch SB of dynamic circuit breaker and moving together contact.
The coil of described relay K M is connected with light emitting diode D3, and electric capacity C1 is in parallel with light emitting diode D3, the coils from parallel connection of coils of protection diode D2 and relay K M, the coil of electric capacity C2 and relay K M and light emitting diode D3 place branch circuit parallel connection.The first loop is formed with above-mentioned components and parts after the 12V voltage output end series diode D2 of described Switching Power Supply.The normally opened contact of described relay K M is serially connected in from the monitor power supply loop of Switching Power Supply extraction.The break contact of a series connection linked switch SB on described first loop, the moving together contact of linked switch SB is in parallel with the normally opened contact of relay K M, like this, can manual operation after relay place circuit goes wrong.
Conveniently operation and display display power supply state directly perceived, button and the light emitting diode D3 of described linked switch are all arranged over the display.
Principle of work of the present invention is: when starting shooting, and 12V power supply to electric capacity C1, C2 charging, after voltage reaches the pick-up voltage of relay K M, causes relay K M action adhesive through diode D1, and its normally opened contact is closed has connected monitor power supply loop.Along with the further rising of electric capacity C1 both end voltage, provide voltage by light emitting diode D3 to the coil of relay K M, such relay K M is just controlled in attracting state, ensure that the reliability of monitor power supply.After operating personnel are shut down by software systems, because the electric charge that electric capacity C2 fills can not disappear immediately, by the coil discharge of light emitting diode D3 to relay K M, after approximately passing through the time delay in nearly 5 seconds, electric charge above electric capacity C2 drains, the normally opened contact of relay K M disconnects, and the power supply of display is just cut-off.
The above is the preferred embodiment of the present invention, and for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also regarded as protection scope of the present invention.
Claims (4)
1. an industrial computer power on-off control circuit, comprise display and Switching Power Supply, it is characterized in that: also comprise relay K M, electric capacity C1, electric capacity C2, diode D1, protection diode D2 and light emitting diode D3, the coil of described relay K M is connected with light emitting diode D3, electric capacity C1 is in parallel with light emitting diode D3, the coils from parallel connection of coils of protection diode D2 and relay K M, the coil of electric capacity C2 and relay K M and light emitting diode D3 place branch circuit parallel connection; The first loop is formed together with above-mentioned components and parts after the 12V voltage output end series diode D2 of described Switching Power Supply; The normally opened contact of described relay K M is serially connected on monitor power supply loop.
2. industrial computer power on-off control circuit according to claim 1, it is characterized in that: it also comprises the linked switch of band dynamic circuit breaker and moving together contact, a series connection linked switch break contact on described first loop, the moving together contact of linked switch is in parallel with the normally opened contact of relay K M.
3. industrial computer power on-off control circuit according to claim 1 and 2, is characterized in that: the button of described linked switch is arranged over the display.
4. industrial computer power on-off control circuit according to claim 3, is characterized in that: described light emitting diode D3 is arranged over the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717564.7A CN104360728A (en) | 2014-11-29 | 2014-11-29 | Industrial computer power supply switch control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410717564.7A CN104360728A (en) | 2014-11-29 | 2014-11-29 | Industrial computer power supply switch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104360728A true CN104360728A (en) | 2015-02-18 |
Family
ID=52527996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410717564.7A Pending CN104360728A (en) | 2014-11-29 | 2014-11-29 | Industrial computer power supply switch control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104360728A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145076A (en) * | 2006-09-13 | 2008-03-19 | 鸿富锦精密工业（深圳）有限公司 | Automatic cut-off device of display |
| CN201527622U (en) * | 2009-06-18 | 2010-07-14 | 刘举柱 | Switch circuit capable of turning off main power source of computer host and display |
| US20130106288A1 (en) * | 2010-07-09 | 2013-05-02 | Koninklijke Philips Electronics N.V. | Supervision circuit for organic light emitting diode |
| CN204288118U (en) * | 2014-11-29 | 2015-04-22 | 济南职业学院 | Industrial computer power on-off control circuit |
-
2014
- 2014-11-29 CN CN201410717564.7A patent/CN104360728A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145076A (en) * | 2006-09-13 | 2008-03-19 | 鸿富锦精密工业（深圳）有限公司 | Automatic cut-off device of display |
| CN201527622U (en) * | 2009-06-18 | 2010-07-14 | 刘举柱 | Switch circuit capable of turning off main power source of computer host and display |
| US20130106288A1 (en) * | 2010-07-09 | 2013-05-02 | Koninklijke Philips Electronics N.V. | Supervision circuit for organic light emitting diode |
| CN204288118U (en) * | 2014-11-29 | 2015-04-22 | 济南职业学院 | Industrial computer power on-off control circuit |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |