CN202903868U - Electrification indication power supply circuit - Google Patents
Electrification indication power supply circuit Download PDFInfo
- Publication number
- CN202903868U CN202903868U CN 201220586824 CN201220586824U CN202903868U CN 202903868 U CN202903868 U CN 202903868U CN 201220586824 CN201220586824 CN 201220586824 CN 201220586824 U CN201220586824 U CN 201220586824U CN 202903868 U CN202903868 U CN 202903868U
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- power supply
- supply circuit
- resistance
- charged display
- diode
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Abstract
The utility model discloses an electrification indication power supply circuit. The circuit comprises a rectification unit, a conversion control unit, a power adaption unit and a locking unit which are sequentially connected, wherein the rectification unit comprises a step-down switch power supply which is connected with a resistor and diodes in series. According to the utility model, the step-down switch power supply is additionally arranged in the rectification unit, so that the voltage is reduced by the switch power supply, and the problems of using a resistor to reduce the voltage, such as the stability is poor and components in the circuit are burnt by the heating of the resistor, are solved.
Description
Technical field
The utility model relates to the electrification display field, particularly a kind of charged display power supply circuit.
Background technology
Along with electric power is used extensively and profoundly, the large-scale motor device such as aircraft, naval vessel also constantly increases the demand of electric power, safety utilization of electric power is had higher requirement, various novel safety apparatus also arise at the historic moment, isolating switch is exactly wherein most widely used a kind of, and can its quality is directly connected to safety utilization of electric power.And the reliability of isolating switch depends on the reliability of its mechanically actuated system to a great extent.Statistics shows, operating fault major part is the mechanically actuated system failure, certainly also has other circuit safeguards except isolating switch.
In order to ensure the security of the electric equipments such as isolating switch, switch cubicle, must show the electrification in high voltage situation, be used for showing that there are power circuit, output circuit, display circuit etc. in the electrification display inside of electrification in high voltage situation, power circuit must reduce high pressure, just can be output and show.And traditional charged display power supply circuit adopts resistance to carry out step-down, and the resistance step-down is the most frequently used step-down means, but but has following shortcoming: the resistance step-down is unstable, and easily heating burns out in the circuit components and parts etc.
In sum, how to overcome the shortcoming of existing resistance step-down, and can reach good antihypertensive effect, the demonstration of carrying out the electrification in high voltage situation to satisfy electrification display is industry technical matters in the urgent need to address.
The utility model content
In view of this, the utility model provides a kind of charged display power supply circuit, by increasing the step-down switching power supply and utilizing the Switching Power Supply step-down, burns out the problem of components and parts in the circuit to solve the existing instability problem of resistance step-down and resistance heating.
For solving above technical matters, the technical solution of the utility model is, a kind of charged display power supply circuit, described charged display power supply circuit comprises rectification unit, TCU transfer control unit, power conversion unit and the locking unit that connects successively, described rectification unit comprises the step-down switching power supply, and described step-down switching power supply is connected with resistance, diode.
Preferably, described step-down switching number of power sources is at least one.
Preferably, described TCU transfer control unit comprises resistance, electric capacity and diode.
Preferably, described power conversion unit comprises transformer, optocoupler, resistance, electric capacity, diode and triode.
Preferably, described locking unit comprises resistance, optocoupler, diode and relay.
Preferably, described locking unit is connected with circuit sensor.
Preferably, described rectification unit number of diodes is four, and the series connection of four diodes also is connected with the resistance of described rectification unit at tie point.
Compared with prior art, the utlity model has following advantage:
In the utility model, a kind of charged display power supply circuit is disclosed, by increasing the step-down switching power supply and utilizing the Switching Power Supply step-down, step-down switching power supply thermal value is low, overcome the problem that instability that traditional resistor step-down mode exists and resistance heating burn out components and parts, thereby increased the life-span that various components and parts use.Originally charged display power supply circuit integrating is safe and reliable during operation, can effectively reduce the voltage of input circuit, is widely used in the electrification display field.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of charged display power supply circuit, described charged display power supply circuit comprises rectification unit 1, TCU transfer control unit 2, power conversion unit 3 and the locking unit 4 that connects successively, described rectification unit 1 comprises step-down switching power supply K1, and described step-down switching power supply K1 connects with resistance, diode.
Described step-down switching number of power sources is at least one.Described rectification unit number of diodes is four, is respectively the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, and the series connection of four diodes also is connected with the resistance R 1 of described rectification unit at tie point.The quantity of described rectification unit diode can be adjusted according to circuit requirements.
Described TCU transfer control unit comprises resistance, electric capacity and diode.
Described power conversion unit comprises transformer, optocoupler, resistance, electric capacity, diode and triode.
Described locking unit comprises resistance, optocoupler, diode and relay.
Described locking unit is connected with circuit sensor.
Only be preferred implementation of the present utility model below, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with the claim limited range.For those skilled in the art, within not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. charged display power supply circuit, it is characterized in that, described charged display power supply circuit comprises rectification unit, TCU transfer control unit, power conversion unit and the locking unit that connects successively, described rectification unit comprises the step-down switching power supply, and described step-down switching power supply is connected with resistance, diode.
2. charged display power supply circuit according to claim 1 is characterized in that, described step-down switching number of power sources is at least one.
3. charged display power supply circuit according to claim 1 is characterized in that, described TCU transfer control unit comprises resistance, electric capacity and diode.
4. charged display power supply circuit according to claim 1 is characterized in that, described power conversion unit comprises transformer, optocoupler, resistance, electric capacity, diode and triode.
5. charged display power supply circuit according to claim 1 is characterized in that, described locking unit comprises resistance, optocoupler, diode and relay.
6. charged display power supply circuit according to claim 5 is characterized in that, described locking unit is connected with circuit sensor.
7. according to claim 1 to 6 each described charged display power supply circuit, it is characterized in that, described rectification unit number of diodes is four, and the series connection of four diodes also is connected with the resistance of described rectification unit at tie point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586824 CN202903868U (en) | 2012-11-08 | 2012-11-08 | Electrification indication power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586824 CN202903868U (en) | 2012-11-08 | 2012-11-08 | Electrification indication power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903868U true CN202903868U (en) | 2013-04-24 |
Family
ID=48124525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220586824 Expired - Fee Related CN202903868U (en) | 2012-11-08 | 2012-11-08 | Electrification indication power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137155A (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Live displayer based on split modules |
-
2012
- 2012-11-08 CN CN 201220586824 patent/CN202903868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137155A (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Live displayer based on split modules |
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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: 20130424 Termination date: 20211108 |