CN203014483U - Fast switching power supply reused by silicon controlled rectifier and relay - Google Patents
Fast switching power supply reused by silicon controlled rectifier and relay Download PDFInfo
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- CN203014483U CN203014483U CN 201220715970 CN201220715970U CN203014483U CN 203014483 U CN203014483 U CN 203014483U CN 201220715970 CN201220715970 CN 201220715970 CN 201220715970 U CN201220715970 U CN 201220715970U CN 203014483 U CN203014483 U CN 203014483U
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- relay
- silicon controlled
- controlled rectifier
- power supply
- controllable silicon
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Abstract
A fast switching power supply reused by a silicon controlled rectifier and a relay comprises a commercial power input terminal, a direct current power supply, an inverter circuit, a controller, a first silicon controlled rectifier, a second silicon controlled rectifier, an auxiliary direct current power supply and the relay. Sampling values of the commercial power input terminal and an output terminal of the inverter circuit are input to two signal input terminals of the controller. The commercial power input terminal and the output terminal of the inverter circuit are connected with the input terminals of the first silicon controlled rectifier and the second silicon controlled rectifier respectively. The output terminals of the first silicon controlled rectifier and the second silicon controlled rectifier are used to connect with a load. A first contact and the output terminal of the relay are connected in parallel to two ends of the first silicon controlled rectifier. The first silicon controlled rectifier, the second silicon controlled rectifier and a control terminal of the relay are connected with a control signal output terminal of the controller respectively. According to the utility model, only one auxiliary power supply is used to realize seamless switching of an inverter and simultaneously requirements that the inverter can still output a voltage when there is no direct current input and switching time is not greater than 4mS are satisfied.
Description
Technical field
The utility model relates to a kind of controllable silicon and the multiplexing quick Switching power of relay.
Background technology
The monomer inverter is when carrying out conversion work, and what prior art generally adopted is " relay mode ", as shown in Figure 1, when civil power was inputted, controller judgement civil power or inversion input were after confirming as the civil power input, 3 and 4 closures of relay, 5 disconnections, last civil power exchanges output; When inversion is inputted, controller judgement civil power or inversion input, after confirming as the inversion input, 3 and 4 disconnections, 5 closures, last inversion exchanges output.Due to time of the actuating of relay in the 6ms left and right, so its change-over time generally in the 6mS left and right, when referring to inverter output voltage and bypass voltage transitions change-over time, time that load voltage interrupts, and the requirement that industry standard is stipulated is not more than 4mS.In order to reach this change-over time, existing a lot of companies adopt " controllable silicon mode ", but this mode need to increase by two accessory power supply parts, supplies with respectively silicon controlled rectifier direct current voltage, has also increased volume when increasing cost, nor attractive in appearance.
Summary of the invention
The utility model provides a kind of controllable silicon and the multiplexing quick Switching power of relay, can be reached " being not more than 4mS " requirement change-over time, but also can raise the efficiency, saves cost, reduces volume.
the quick Switching power that a kind of controllable silicon and relay are multiplexing, comprise the mains electricity input end, DC power supply, inverter circuit, controller, the first controllable silicon, the second controllable silicon, it is characterized in that: also comprise auxiliary DC power supply, relay, be connected output and be connected with resistance R and be connected with two signal input parts of controller by resistance R 1 respectively in the mains electricity input end with inverter circuit, the output of mains electricity input end and inverter circuit also respectively with the first controllable silicon, the second silicon controlled input connects, the first controllable silicon, the second silicon controlled output is used for being connected with load, relay comprises the first contact, the second contact, output and control end, the first contact of relay and output also are connected on the first silicon controlled two ends, the first controllable silicon, the control end of the second controllable silicon and relay is connected with the control signal output of controller respectively.
Further, described auxiliary DC power supply is the DC-DC transducer, and its input is connected with DC power supply, and output is connected with the power input of controller.
The utility model is realized only realizing the inverter seamless switching with an accessory power supply, guarantee that simultaneously inverter still has Voltage-output when inputting without direct current, can reach " being not more than 4mS " requirement change-over time, can also raise the efficiency in addition, save cost, reduce volume.
Description of drawings
Fig. 1 is that prior art adopts the relay mode to realize the electrical block diagram of inverter conversion.
Fig. 2 is electrical block diagram of the present utility model.
In figure: 10-inverter circuit, 20-auxiliary DC power supply, 30-controller, 40-the first controllable silicon, 50-the second controllable silicon, 60-relay, R1, R2-resistance.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is clearly and completely described.
Please refer to Fig. 2, the multiplexing quick Switching power of the utility model controllable silicon and relay comprises mains electricity input end, DC power supply, inverter circuit 10, auxiliary DC power supply 20, controller 30, the first controllable silicon 40, the second controllable silicon 50, relay 60.
The input of DC power supply access inverter circuit 10 and auxiliary DC power supply 20, controller 30 comprises power input, two signal input parts, three control signal outputs.Auxiliary DC power supply described in the present embodiment 20 can be the DC-DC transducer, and its input is connected with DC power supply, and output is connected with the power input of controller 30, and being used for provides operating voltage to controller 30.The output of being connected with inverter circuit in the mains electricity input end is connected with resistance R and is connected with two signal input parts of controller 30 by resistance R 1 respectively, the output of being connected with inverter circuit in the mains electricity input end also is connected with the input of the first controllable silicon 40, the second controllable silicon 50 respectively, and the output of the first controllable silicon 40, the second controllable silicon 50 is used for being connected with load.Relay 60 comprises the first contact (3), the second contact (5), output (4) and control end (1), the first contact (3) and output (4) also are connected on the two ends of the first controllable silicon 40, and the control end of the first controllable silicon 40, the second controllable silicon 50 and relay 60 is connected with the control signal output of controller 30 respectively.
During work, resistance R 1 and resistance R 2 will be sent into from the sampled value of mains electricity input end and inverter circuit 10 outputs two signal input parts of controller 30 as sampling resistor, and judgement is civil power input or inversion input to controller 30 at this moment according to sampled value.When being judged as the civil power input, controller 30 output control signals are given the control end of the first controllable silicon 40, make the input of the first controllable silicon 40 and output be communicated with, and civil power is exported to load; When being judged as the inversion input, controller 30 output control signals are given the control end of the second controllable silicon 50, make the input of the second controllable silicon 50 and output be communicated with, and the inversion AC power is exported to load.
When the working power (for example 5V direct voltage) that obtains from auxiliary DC power supply 20 when controller 30 is normal, expression has the direct current input, the output that controller 30 drives relay 60 is connected with the second contact (5), namely swing to 5 pin from 3 pin, this moment, relay was not worked, civil power and inversion when normal the switching, are switched with the first controllable silicon 40 and the second controllable silicon 50 like this, and be zero switching time.
The power supply that obtains from auxiliary DC power supply 20 when controller 30 is during lower than normal working voltage, and expression is inputted without direct current this moment.If relay 60 is not set, controller 30 is not due to providing of normal drive voltage being provided, the first controllable silicon 40 and the second controllable silicon 50 not conductings, and therefore this moment, power supply did not have Voltage-output.The utility model is owing to being provided with relay 60, the output that controller 30 can drive relay 60 is connected with the first contact (3), be that controller 30 release relays 60 are swung to normally closed 3 pin from 5 pin, when inputting without direct current, the first controllable silicon 40 and the second controllable silicon 50 are not worked, and this moment, the civil power input was walked electric current through relay 60, make circuit that Voltage-output be arranged, when the unexpected power down of direct current input, the shutoff of controlling the first controllable silicon 40 or the second controllable silicon 50 lags behind simultaneously, realizes that be zero switching time.
By the utility model, can realize only realizing the inverter seamless switching with an accessory power supply, guarantee simultaneously inverter when inputting without direct current, when only having the civil power input, inverter still has Voltage-output.
Claims (2)
1. the multiplexing quick Switching power of a controllable silicon and relay, comprise the mains electricity input end, DC power supply, inverter circuit (10), controller (30), the first controllable silicon (40), the second controllable silicon (50), it is characterized in that: also comprise auxiliary DC power supply (20), relay (60), the mains electricity input end is connected 10 with inverter circuit) output are connected with resistance R and are connected with two signal input parts of controller 30 by resistance R 1 respectively, the output of mains electricity input end and inverter circuit (10) also respectively with the first controllable silicon (40), the input of the second controllable silicon (50) connects, the first controllable silicon (40), the output of the second controllable silicon (50) is used for being connected with load, relay (60) comprises the first contact, the second contact, output and control end, the first contact of relay (60) and output also are connected on the two ends of the first controllable silicon (40), the first controllable silicon (40), the control end of the second controllable silicon (50) and relay (60) is connected with the control signal output of controller (30) respectively.
2. the multiplexing quick Switching power of controllable silicon as claimed in claim 1 and relay, it is characterized in that: described auxiliary DC power supply (20) is the DC-DC transducer, its input is connected with DC power supply, and output is connected with the power input of controller (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220715970 CN203014483U (en) | 2012-12-21 | 2012-12-21 | Fast switching power supply reused by silicon controlled rectifier and relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220715970 CN203014483U (en) | 2012-12-21 | 2012-12-21 | Fast switching power supply reused by silicon controlled rectifier and relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014483U true CN203014483U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220715970 Expired - Fee Related CN203014483U (en) | 2012-12-21 | 2012-12-21 | Fast switching power supply reused by silicon controlled rectifier and relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203014483U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659903A (en) * | 2015-02-09 | 2015-05-27 | 澳柯玛股份有限公司 | Automatic switching device for double-acting power supply and control method |
| CN106229963A (en) * | 2016-08-31 | 2016-12-14 | 广东新昇电业科技股份有限公司 | A kind of controllable silicon treats the control circuit that crush-cutting changes more |
-
2012
- 2012-12-21 CN CN 201220715970 patent/CN203014483U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659903A (en) * | 2015-02-09 | 2015-05-27 | 澳柯玛股份有限公司 | Automatic switching device for double-acting power supply and control method |
| CN106229963A (en) * | 2016-08-31 | 2016-12-14 | 广东新昇电业科技股份有限公司 | A kind of controllable silicon treats the control circuit that crush-cutting changes more |
| CN106229963B (en) * | 2016-08-31 | 2019-06-18 | 广东新昇电业科技股份有限公司 | A kind of silicon-controlled control circuit mostly changed to crush-cutting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131221 |