CN210297333U - Combined capacitor module circuit with charging current control - Google Patents
Combined capacitor module circuit with charging current control Download PDFInfo
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- CN210297333U CN210297333U CN201921552030.8U CN201921552030U CN210297333U CN 210297333 U CN210297333 U CN 210297333U CN 201921552030 U CN201921552030 U CN 201921552030U CN 210297333 U CN210297333 U CN 210297333U
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Abstract
The utility model relates to an avionics engineering field just discloses a combination electric capacity module circuit of area charging current control, include: the triode Q1 is respectively connected with the resistor R1 and the energy storage circuit in series, the resistor R1 and the energy storage circuit are not arranged on the same side of the triode Q1 and are symmetrical, and the energy storage circuit comprises a capacitor set and a fuse set, wherein the capacitor set is connected with the fuse set in series; a diode D2, a cathode of which is electrically connected to the resistor R1, and an anode of which is electrically connected to the tank circuit and the transistor Q1, respectively; a voltage regulator tube D1, a negative electrode of which is electrically connected with the resistor R1, and a positive electrode of which is electrically connected with the resistor R2 and the triode Q1 respectively; the utility model provides a combination electric capacity module circuit of area charging current control can guarantee that the charging current maximum value can set up and invariable at less scope, and charge time is fast, and the electric capacity module can discharge fast to the energy storage function is realized to the complete machine of being convenient for.
Description
Technical Field
The utility model relates to an avionics engineering field specifically is a take combined capacitor module circuit of charging current control.
Background
In the aviation power supply system, a normal working process of instantaneous power failure (50ms) exists in the switching process of power supplies between power supplies on a ground power supply machine and between different current meeting bars on the machine, in order to ensure the safety and reliability of the system, normal and reliable work of airborne electric equipment is ensured when the power supplies are switched, no performance reduction exists, the test requirement of relevant test standards for the test is three continuous instantaneous power failure tests, and the interval of each time is less than 500 ms.
The existing airborne electric equipment generally needs to adopt a large-capacity capacitor matched with the equipment power as an energy storage element for ensuring the normal performance index of the product in the switching process, and when the aircraft power supply system is normally powered off, the energy is provided for maintaining the normal work of the equipment, the capacity of the energy storage capacitor is large, if the energy storage capacitor is directly connected to an input power supply in parallel, very large impact current is caused, and the whole power supply environment is further improved and deteriorated. The airplane power supply characteristic standard clearly specifies an index of power-on impact current of the electric equipment (the instantaneous current is not more than 5 times of the rated current of the equipment and the rated current is recovered within 100 ms), and limits the capacitance of the electric equipment at the power supply input end.
In order to meet the requirements of power failure maintenance and impact current limitation of electric equipment, the conventional avionic equipment generally adopts a buffer fast discharge circuit structure of an RCD (resistor capacitor diode) energy storage capacitor, the circuit realizes the function of restraining large current generated when the energy storage capacitor is charged by connecting a current limiting resistor in series, and the function of discharging a subsequent circuit is realized by connecting a single-phase conducting device during discharging. The RCD circuit structure is simple, but the charging current is gradually reduced as the charging process continues, resulting in longer charging time of the capacitor and thus circuit cost and volume pressure.
Disclosure of Invention
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a combination electric capacity module circuit of area charging current control can guarantee that the charging current maximum value can set up and invariable at less scope, and charge time is fast, and electric capacity module can discharge fast to the energy storage function is realized to the complete machine of being convenient for.
Technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a combined capacitor module circuit with charge current control, comprising:
the triode Q1 is respectively connected with the resistor R1 and the energy storage circuit in series, the resistor R1 and the energy storage circuit are not arranged on the same side of the triode Q1 and are symmetrical, and the energy storage circuit comprises a capacitor set and a fuse set, wherein the capacitor set is connected with the fuse set in series;
a diode D2, a cathode of which is electrically connected to the resistor R1, and an anode of which is electrically connected to the tank circuit and the transistor Q1, respectively;
the negative electrode of the voltage regulator tube D1 is electrically connected with the resistor R1, the positive electrode of the voltage regulator tube D1 is electrically connected with the resistor R2 and the triode Q1 respectively, one end of the resistor R2 is electrically connected with the energy storage circuit, and the other end of the resistor R2 is electrically connected with the triode Q1.
Preferably, the capacitor bank includes a first capacitor C1, a second capacitor C2, and a third capacitor C3, wherein one end of the first capacitor C1 is electrically connected to one end of the second capacitor C2, and one end of the second capacitor C2 is electrically connected to one end of the third capacitor C3.
Preferably, the fuse set comprises a fuse U1, a fuse U2 and a fuse U3, wherein one end of the fuse U1 is electrically connected with one end of the fuse U2, and one end of the fuse U2 is electrically connected with one end of the fuse U3.
Preferably, the other end of the first capacitor C1 is electrically connected to the other end of the fuse U1.
Preferably, the other end of the second capacitor C2 is electrically connected to the other end of the fuse U2.
Preferably, the other end of the third capacitor C3 is electrically connected to the other end of the fuse U3.
Preferably, the capacitor module circuit is provided with two ends of a positive pole and a negative pole.
(III) advantageous effects
Compared with the prior art, the utility model provides a take combined capacitor module circuit of charging current control possesses following beneficial effect:
the utility model has the constant current source function composed of a voltage regulator tube D1, a resistor R1, a resistor R1R2 and a triode Q1; the diode D2 in the utility model realizes the one-way conduction discharge function; the fuse U1, the fuse U2 and the fuse U3 in the utility model realize the branch overcurrent protection function; the utility model provides a first electric capacity C1, second electric capacity C2, third electric capacity C3 constitute energy storage capacitor group.
An external power supply is applied to two ends of the anode and the cathode of the circuit, the initial voltage on the energy storage capacitor bank is zero, and when the voltage regulator tube D1 is broken down, the triode Q1 is driven to be conducted to charge the capacitor bank. Because the voltage on the resistor R1 connected with the triode Q1 in series is clamped by the voltage regulator tube D1, the collector current of the triode Q1 is basically constant, namely the charging current for the capacitor bank is constant, thereby ensuring that the charging current is controlled in a small range and large impact current is not caused, the constant current value is determined by the clamping voltage value of the voltage regulator tube D2 and the resistance value of the resistor R1, and the final stable voltage value on the capacitor bank is equal to the difference value of the external input voltage and the clamping voltage of the voltage regulator tube D1; when the voltage of the external power supply is lower than the voltage on the capacitor bank, the capacitor bank discharges from the positive terminal through the diode D2 to provide the required maintenance energy for the external circuit. Fuse group mainly realizes trouble electric capacity isolation, because energy storage capacitor is formed by the parallelly connected combination of a plurality of monomer condenser, when arbitrary all the way or when individual monomer electric capacity became invalid the short circuit, will arouse corresponding fuse fusing, breaks away from the electric capacity assembly with corresponding trouble device and is unlikely to arouse electric capacity module overall function inefficacy, the utility model discloses simple structure, sexual valence relative altitude.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a combined capacitor module circuit with charging current control includes: the triode Q1 is respectively connected with the resistor R1 and the energy storage circuit in series, the resistor R1 and the energy storage circuit are not arranged on the same side of the triode Q1 and are symmetrical, and the energy storage circuit comprises a capacitor set and a fuse set, wherein the capacitor set is connected with the fuse set in series; a diode D2, a cathode of which is electrically connected to the resistor R1, and an anode of which is electrically connected to the tank circuit and the transistor Q1, respectively; the negative electrode of the voltage regulator tube D1 is electrically connected with the resistor R1, the positive electrode of the voltage regulator tube D1 is electrically connected with the resistor R2 and the triode Q1 respectively, one end of the resistor R2 is electrically connected with the energy storage circuit, and the other end of the resistor R2 is electrically connected with the triode Q1.
Preferably, the capacitor bank includes a first capacitor C1, a second capacitor C2, and a third capacitor C3, wherein one end of the first capacitor C1 is electrically connected to one end of the second capacitor C2, and one end of the second capacitor C2 is electrically connected to one end of the third capacitor C3; the fuse set comprises a fuse U1, a fuse U2 and a fuse U3, wherein one end of the fuse U1 is electrically connected with one end of the fuse U2, and one end of the fuse U2 is electrically connected with one end of a fuse U3; the other end of the first capacitor C1 is electrically connected to the other end of the fuse U1, the other end of the second capacitor C2 is electrically connected to the other end of the fuse U2, and the other end of the third capacitor C3 is electrically connected to the other end of the fuse U3; and the capacitor module circuit is provided with a positive electrode and a negative electrode.
In summary, an external power supply is applied to the two ends of the positive electrode and the negative electrode of the circuit, the initial voltage on the energy storage capacitor bank is zero, and the triode Q1 is driven to be conducted to charge the capacitor bank after the voltage regulator tube D1 is broken down. Because the voltage on the resistor R1 connected with the triode Q1 in series is clamped by the voltage regulator tube D1, the collector current of the triode Q1 is basically constant, namely the charging current for the capacitor bank is constant, thereby ensuring that the charging current is controlled in a small range and large impact current is not caused, the constant current value is determined by the clamping voltage value of the voltage regulator tube D2 and the resistance value of the resistor R1, and the final stable voltage value on the capacitor bank is equal to the difference value of the external input voltage and the clamping voltage of the voltage regulator tube D1; when the voltage of the external power supply is lower than the voltage on the capacitor bank, the capacitor bank discharges from the positive terminal through the diode D2 to provide the required maintenance energy for the external circuit. The fuse group mainly realizes the fault capacitance isolation effect, and because the energy storage capacitor is formed by combining a plurality of monomer capacitors in parallel, when any one path or one monomer capacitor fails and is short-circuited, the corresponding fuse is fused, and the corresponding fault device is separated from the capacitor assembly, so that the integral function failure of the capacitor module is not caused.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A combined capacitor module circuit with charge current control, comprising:
the triode Q1 is respectively connected with the resistor R1 and the energy storage circuit in series, the resistor R1 and the energy storage circuit are not arranged on the same side of the triode Q1 and are symmetrical, and the energy storage circuit comprises a capacitor set and a fuse set, wherein the capacitor set is connected with the fuse set in series;
a diode D2, a cathode of which is electrically connected to the resistor R1, and an anode of which is electrically connected to the tank circuit and the transistor Q1, respectively;
the negative electrode of the voltage regulator tube D1 is electrically connected with the resistor R1, the positive electrode of the voltage regulator tube D1 is electrically connected with the resistor R2 and the triode Q1 respectively, one end of the resistor R2 is electrically connected with the energy storage circuit, and the other end of the resistor R2 is electrically connected with the triode Q1.
2. The combined capacitor module circuit with charging current control as claimed in claim 1, wherein: the capacitor bank comprises a first capacitor C1, a second capacitor C2 and a third capacitor C3, wherein one end of the first capacitor C1 is electrically connected with one end of the second capacitor C2, and one end of the second capacitor C2 is electrically connected with one end of the third capacitor C3.
3. The combined capacitor module circuit with charging current control as claimed in claim 2, wherein: the fuse set comprises a fuse U1, a fuse U2 and a fuse U3, wherein one end of the fuse U1 is electrically connected with one end of the fuse U2, and one end of the fuse U2 is electrically connected with one end of the fuse U3.
4. The combined capacitor module circuit with charging current control as claimed in claim 3, wherein: the other end of the first capacitor C1 is electrically connected to the other end of the fuse U1.
5. The combined capacitor module circuit with charging current control as claimed in claim 3, wherein: the other end of the second capacitor C2 is electrically connected to the other end of the fuse U2.
6. The combined capacitor module circuit with charging current control as claimed in claim 3, wherein: the other end of the third capacitor C3 is electrically connected to the other end of the fuse U3.
7. The combined capacitor module circuit with charging current control as claimed in claim 1, wherein: and the capacitor module circuit is provided with a positive electrode and a negative electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552030.8U CN210297333U (en) | 2019-09-18 | 2019-09-18 | Combined capacitor module circuit with charging current control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552030.8U CN210297333U (en) | 2019-09-18 | 2019-09-18 | Combined capacitor module circuit with charging current control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210297333U true CN210297333U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921552030.8U Active CN210297333U (en) | 2019-09-18 | 2019-09-18 | Combined capacitor module circuit with charging current control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210297333U (en) |
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2019
- 2019-09-18 CN CN201921552030.8U patent/CN210297333U/en active Active
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