CN212726842U - Circuit structure for accelerating discharge after power failure - Google Patents
Circuit structure for accelerating discharge after power failure Download PDFInfo
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- CN212726842U CN212726842U CN202021566426.0U CN202021566426U CN212726842U CN 212726842 U CN212726842 U CN 212726842U CN 202021566426 U CN202021566426 U CN 202021566426U CN 212726842 U CN212726842 U CN 212726842U
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Abstract
The utility model relates to a circuit structure for accelerating discharge after power failure, which comprises an input end and an output end; a first branch circuit is arranged between the positive electrode and the negative electrode of the input end, and comprises a first diode and a seventh resistor which are connected in series; a second branch circuit is also arranged between the positive electrode and the negative electrode of the input end, and comprises a second resistor and a second triode which are connected in series; a third branch circuit is also arranged between the positive electrode and the negative electrode of the input end, and comprises a fifth resistor and a first triode which are connected in series; a fourth branch circuit and a fifth branch circuit are further arranged between the positive electrode and the negative electrode of the input end, the fourth branch circuit comprises at least one second diode, and the fifth branch circuit comprises at least one capacitor; and a load is arranged between the positive pole and the negative pole of the output end. The utility model discloses in, resistance is used for the current-limiting, and zener diode for voltage limiting clamper, the triode switches on and ends and acts as the switch tube, consequently can realize the circuit outage after purpose of discharging with higher speed.
Description
Technical Field
The utility model relates to a circuit structure technical field, concretely relates to circuit structure of discharging with higher speed after the outage.
Background
In the conventional circuit structure, the whole process from the opening to the normal operation to the closing of the circuit does not need additional auxiliary circuit control requirements. However, with the development of technology, the application of products becomes more and more extensive, and especially with the coming of intelligent products, many conventional circuit structures cannot meet the design requirements of the products. For example, in the application of intelligent products, the intelligent products are composed of a plurality of control chips, including power supply chips, inversion conversion control chips, communication chips and other combinations; in the current related overall circuit architecture, the power cannot be quickly turned off after the power is turned off, but a discharging process for a certain time is generated, so that a dead halt phenomenon caused by untimely reset of the chip is caused, and improvement is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a circuit structure of discharging with higher speed after outage, this circuit structure's resistance is used for the current-limiting, and zener diode for voltage limiting clamp, triode switch on and end as the switch tube effect, and electric capacity filtering energy storage can realize the circuit outage back purpose of discharging with higher speed.
The technical proposal adopted by the utility model is that; a circuit structure for accelerating discharge after power failure comprises an input end and an output end, wherein a first branch circuit is arranged between the positive pole and the negative pole of the input end, and comprises a first diode and a seventh resistor which are connected in series;
a second branch circuit is also arranged between the positive electrode and the negative electrode of the input end, and comprises a second resistor and a second triode which are connected in series;
a third branch circuit is further arranged between the positive electrode and the negative electrode of the input end, and comprises a fifth resistor and a first triode which are connected in series;
a fourth branch and a fifth branch are further included between the positive electrode and the negative electrode of the input end, the fourth branch comprises at least one second diode, and the fifth branch comprises at least one capacitor;
and a load is arranged between the positive pole and the negative pole of the output end.
Furthermore, a first node, a second node and a fourth node are arranged on the anode of the input end, one end of the second resistor is connected to the first node, and the other end of the second resistor is connected to the second triode; a fifth node is arranged between the second resistor and the second triode;
one end of the fifth resistor is connected to the first node, and the other end of the fifth resistor is connected to the first triode; a sixth node is further arranged between the fifth resistor and the first triode;
one end of the second diode is connected to the fourth node, and the other end of the second diode is connected to the negative electrode of the input end.
Further, a fourth resistor is arranged between the first node and the second node;
and a third node is also arranged between the second node and the fourth node, and a sixth resistor is arranged between the third node and the sixth node.
Furthermore, the two ends of the fourth resistor further include a parallel branch, and the parallel branch includes at least one second resistor.
Furthermore, a seventh node is arranged between the first diode and the resistor, the circuit structure further comprises a resistor, one end of the resistor is connected to the seventh node, and the other end of the resistor is connected with the base electrode of the second triode; and the base electrode of the first triode is connected with the fifth node.
Further, the first triode and the second triode are both NPN type triodes; a collector of the first triode is connected to the sixth node, and an emitter of the first triode is connected to the negative electrode of the input end;
and the collector electrode of the second triode is connected to the fifth node, and the emitter electrode of the second triode is connected to the negative electrode of the input end.
In the utility model, the resistor of the circuit structure is used for current limiting, the voltage stabilizing diode is used for voltage limiting clamp, the triode is used for switching on and off and is used as a switch tube, and the capacitor filters and stores energy; therefore, the utility model discloses a circuit structure, through above circuit theory of operation, realized the purpose of discharging with higher speed after the circuit outage.
Drawings
Fig. 1 shows a schematic diagram of a circuit structure of the present invention for accelerating discharging after power failure.
Detailed Description
As shown in fig. 1, it is a schematic diagram of a circuit structure of the accelerated discharging after power failure according to the present invention; the utility model discloses a circuit structure of accelerated discharge after outage, including input and output, include the first branch road between the positive pole of input and the negative pole, first branch road includes series connection's first diode D1 and seventh resistance R7;
a second branch circuit is further arranged between the positive electrode and the negative electrode of the input end, and comprises a second resistor R2 and a second triode Q2 which are connected in series;
a third branch circuit is further arranged between the positive electrode and the negative electrode of the input end, and comprises a fifth resistor R5 and a first triode Q1 which are connected in series;
a fourth branch and a fifth branch are further included between the positive pole and the negative pole of the input terminal, the fourth branch includes at least one second diode D2, and the fifth branch includes at least one capacitor C1;
and a load P is arranged between the positive pole and the negative pole of the output end.
In a preferred embodiment, a first node S1, a second node S2 and a fourth node S4 are disposed on the positive electrode of the input terminal, one end of the second resistor R2 is connected to the first node S1, and the other end is connected to the second transistor Q2; a fifth node S5 is arranged between the second resistor R2 and the second triode Q2;
one end of the fifth resistor R5 is connected to the first node S1, and the other end is connected to the first transistor Q1; a sixth node S6 is further arranged between the fifth resistor R5 and the first triode Q1;
one end of the second diode D2 is connected to the fourth node S4, and the other end is connected to the negative pole of the input terminal.
A fourth resistor R4 is arranged between the first node S1 and the second node S2; a third node S3 is further arranged between the second node S2 and the fourth node S4, a sixth resistor R6 is arranged between the third node S3 and the sixth node S6, two ends of the fourth resistor R4 further include a parallel branch, and the parallel branch includes at least one second resistor R3.
In the utility model, a seventh node S7 is further arranged between the first diode D1 and the resistor R7, the circuit structure further comprises a resistor R1, one end of the resistor R1 is connected to the seventh node S7, and the other end is connected to the base of the second triode Q2; the base electrode of the first triode Q1 is connected with the fifth node S5, and the first triode Q1 and the second triode Q2 are both NPN type triodes; the collector of the first transistor Q1 is connected to the sixth node S6, and the emitter of the transistor is connected to the negative pole of the input terminal; the collector of the second transistor Q2 is connected to the fifth node S5, and the emitter of the second transistor Q2 is connected to the negative terminal of the input terminal.
Therefore, the utility model discloses in, resistance is used for the current-limiting, and zener diode for voltage limiting clamper, triode switch on and end and act as the switch tube, and the electric capacity filtering energy storage. The circuit structure of the utility model realizes the purpose of accelerating discharging after the circuit power failure through the following circuit working principle.
The utility model discloses a circuit theory of operation: when the input end is normally electrified, the current passes through the voltage stabilizing diode and the base electrode to the emitter electrode to be conducted, and because Vce during conduction is about 0.V, at the moment, the triode is cut off, and the main current of the input end passes through the voltage limiting clamp of the voltage stabilizing diode and then flows to the output end to supply power for the rear-stage load. At the moment, the whole circuit is in a normal working state, the resistance value of the resistor is large, the current is small, and the loss is small. When the input end is powered off, the input voltage is reduced, when the input voltage drops to be lower than the sum of the voltage stabilizing diode and the voltage of the emitting electrode by 0.V, the triode is cut off, at the moment, the current flows to the base electrode of the triode to the emitting electrode, the triode is rapidly conducted, the resistance value of the triode is small, the discharge current is large, the electric quantity stored by the input end and the capacitor C is rapidly discharged, and therefore the purpose of accelerating discharge after the power supply end is powered off is achieved.
The whole circuit structure realizes accelerated discharge after the circuit is powered off, and is beneficial to the rapid reset of the output load, so that the output load can rapidly enter a normal working state in the subsequent power-on operation.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. A circuit structure for accelerating discharge after power failure comprises an input end and an output end, and is characterized in that a first branch circuit is arranged between a positive pole and a negative pole of the input end, and the first branch circuit comprises a first diode and a seventh resistor which are connected in series;
a second branch circuit is also arranged between the positive electrode and the negative electrode of the input end, and comprises a second resistor and a second triode which are connected in series;
a third branch circuit is further arranged between the positive electrode and the negative electrode of the input end, and comprises a fifth resistor and a first triode which are connected in series;
a fourth branch and a fifth branch are further included between the positive electrode and the negative electrode of the input end, the fourth branch comprises at least one second diode, and the fifth branch comprises at least one capacitor;
and a load is arranged between the positive pole and the negative pole of the output end.
2. The circuit structure of claim 1, wherein a first node, a second node and a fourth node are disposed on the positive electrode of the input terminal, one end of the second resistor is connected to the first node, and the other end of the second resistor is connected to the second triode; a fifth node is arranged between the second resistor and the second triode;
one end of the fifth resistor is connected to the first node, and the other end of the fifth resistor is connected to the first triode; a sixth node is further arranged between the fifth resistor and the first triode;
one end of the second diode is connected to the fourth node, and the other end of the second diode is connected to the negative electrode of the input end.
3. The circuit structure of claim 2, wherein a fourth resistor is disposed between the first node and the second node;
and a third node is also arranged between the second node and the fourth node, and a sixth resistor is arranged between the third node and the sixth node.
4. The circuit structure of claim 3, wherein the fourth resistor further comprises a parallel branch at both ends thereof, and the parallel branch comprises at least one second resistor thereon.
5. The circuit structure of claim 3, wherein a seventh node is disposed between the first diode and the resistor, the circuit structure further comprising a resistor, one end of the resistor being connected to the seventh node, and the other end of the resistor being connected to the base of the second transistor; and the base electrode of the first triode is connected with the fifth node.
6. The circuit structure of claim 5, wherein the first transistor and the second transistor are both NPN transistors; a collector of the first triode is connected to the sixth node, and an emitter of the first triode is connected to the negative electrode of the input end;
and the collector electrode of the second triode is connected to the fifth node, and the emitter electrode of the second triode is connected to the negative electrode of the input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566426.0U CN212726842U (en) | 2020-08-01 | 2020-08-01 | Circuit structure for accelerating discharge after power failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566426.0U CN212726842U (en) | 2020-08-01 | 2020-08-01 | Circuit structure for accelerating discharge after power failure |
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| Publication Number | Publication Date |
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| CN212726842U true CN212726842U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021566426.0U Active CN212726842U (en) | 2020-08-01 | 2020-08-01 | Circuit structure for accelerating discharge after power failure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061333A1 (en) * | 2021-10-12 | 2023-04-20 | 维沃移动通信有限公司 | Bleeder circuit control method and apparatus, bleeder device, and electronic device |
-
2020
- 2020-08-01 CN CN202021566426.0U patent/CN212726842U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061333A1 (en) * | 2021-10-12 | 2023-04-20 | 维沃移动通信有限公司 | Bleeder circuit control method and apparatus, bleeder device, and electronic device |
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