CN213959969U - Quick start circuit with farad capacitor - Google Patents
Quick start circuit with farad capacitor Download PDFInfo
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- CN213959969U CN213959969U CN202022466544.0U CN202022466544U CN213959969U CN 213959969 U CN213959969 U CN 213959969U CN 202022466544 U CN202022466544 U CN 202022466544U CN 213959969 U CN213959969 U CN 213959969U
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- diode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model discloses a take farad electric capacity quick start circuit, including power, first diode D1, second diode D2, third diode D3 and farad electric capacity C1. The anode of a power supply is connected with the anode of the first diode D1 and the anode of the third diode D3, the cathode of the power supply is grounded, the anode of the farad capacitor C1 is connected with the cathode of the first diode D1 and the anode of the second diode D2, the cathode of the farad capacitor C1 is grounded, and the cathode of the second diode D2 and the cathode of the third diode D3 are connected with a load circuit; the total voltage drop of the first diode D1 and the second diode D2 is larger than that of the third diode D3. The utility model discloses can be so that take farad capacitance's circuit can not be influenced by farad capacitance to can go up the electric response rapidly, and this circuit design super capacitor can normally exert when the circuit falls the electricity, can provide stand-by current's effect rapidly.
Description
Technical Field
The utility model belongs to the technical field of intelligent instrument count, a take farad electric capacity quick start circuit is related to
Background
Along with the development of the intelligent gas industry, the market share of the intelligent gas meter is higher and higher, the existing gas meter has novel functions such as increasing intelligence, increasing valve control, reading meter by the internet of things and the like, in order to improve the reliability of products, the farad capacitor is increased, the reliability when a valve acts or data is reported and the like when heavy current is used is increased, the farad capacitor is increased in a circuit, the operations such as valve control and the like can be carried out after an intelligent module of the gas meter is powered off, but after the farad capacitor is increased, when the gas meter is powered on, because the farad capacitor needs a certain time to reach the rated voltage of the circuit, the farad capacitor is usually connected with the control circuit in parallel, when the gas meter is powered on, the control part of the circuit cannot rapidly enter the working state due to the influence of the farad capacitor, and the circuit function cannot be immediately realized.
Disclosure of Invention
To the not enough that exists among the prior art, the utility model provides a take farad electric capacity quick start circuit.
The utility model discloses a realize through following technical scheme:
a quick start circuit with a farad capacitor comprises a power supply, a first diode D1, a second diode D2, a third diode D3 and a farad capacitor C1. The anode of a power supply is connected with the anode of the first diode D1 and the anode of the third diode D3, the cathode of the power supply is grounded, the anode of the farad capacitor C1 is connected with the cathode of the first diode D1 and the anode of the second diode D2, the cathode of the farad capacitor C1 is grounded, and the cathode of the second diode D2 and the cathode of the third diode D3 are connected with a load circuit; the total voltage drop of the first diode D1 and the second diode D2 is larger than that of the third diode D3.
Further, the first diode D1, the second diode D2, and the third diode D3 are schottky diodes.
The utility model discloses beneficial effect as follows:
compared with the prior art, the utility model discloses can be so that take farad capacitance's circuit can not receive farad capacitance to can go up the electric response rapidly, and this circuit design super capacitor can normally exert when the circuit falls the electricity, can provide stand-by current's effect rapidly. When the external power supply is reversely connected, the main circuit cannot be conducted due to the third diode D3 when the power supply is reversely connected, and the super capacitor C1 cannot be reversely charged due to the existence of the second diode D2 when the power supply is reversely connected, so that danger is caused.
Drawings
FIG. 1 is a circuit diagram of the present invention;
fig. 2 is a circuit diagram of an embodiment of the present invention.
Detailed Description
In order to explain technical contents, structural features, and effects of the present invention in detail, the following detailed description is made with reference to the accompanying drawings in conjunction with the embodiments.
As shown in FIG. 1, a fast start circuit with a farad capacitor comprises a power supply, a first diode D1, a second diode D2, a third diode D3 and a farad capacitor C1. The anode of a power supply is connected with the anode of the first diode D1 and the anode of the third diode D3, the cathode of the power supply is grounded, the anode of the farad capacitor C1 is connected with the cathode of the first diode D1 and the anode of the second diode D2, the cathode of the farad capacitor C1 is grounded, and the cathode of the second diode D2 and the cathode of the third diode D3 are connected with a load circuit; the total voltage drop of the first diode D1 and the second diode D2 is larger than that of the third diode D3.
Further, as shown in fig. 2, in the practical use of the circuit, the farad capacitor C1 can be directly connected to the valve circuit, when the motor of the valve circuit is started or stopped, the current required by the valve circuit is supplied through the farad capacitor C1, and the voltage of the load circuit is not affected due to the existence of the second diode D2.
The working process is as follows:
when a power supply is connected, current flows to the farad capacitor through the first diode D1, and simultaneously, current flows to a load end through the third diode D3 directly, the voltage at the cathode of the third diode D3 is equal to the voltage at the cathode of the D1 of the first diode, and the second diode D2 has conduction voltage drop, so the second diode D2 cannot be conducted, that is, the power-on of the load circuit is not affected by the farad capacitor, and the load circuit can be powered on quickly.
When the standby power is lost, the voltage at the cathode of the third diode D3 disappears, the voltage of the farad capacitor C1 is larger than the conduction voltage drop of the second diode D2, and the super capacitor supplies the standby power current to the load circuit through the second diode D2.
When the external power supply is reversely connected, the main circuit cannot be conducted due to the third diode D3 when the power supply is reversely connected, and the super capacitor C1 cannot be reversely charged due to the existence of the second diode D2 when the power supply is reversely connected, so that danger is caused.
Claims (2)
1. A quick start circuit with a farad capacitor is characterized by comprising a power supply, a first diode D1, a second diode D2, a third diode D3 and a farad capacitor C1; the anode of a power supply is connected with the anode of the first diode D1 and the anode of the third diode D3, the cathode of the power supply is grounded, the anode of the farad capacitor C1 is connected with the cathode of the first diode D1 and the anode of the second diode D2, the cathode of the farad capacitor C1 is grounded, and the cathode of the second diode D2 and the cathode of the third diode D3 are connected with a load circuit; the total voltage drop of the first diode D1 and the second diode D2 is larger than that of the third diode D3.
2. The farad capacitor fast start circuit as claimed in claim 1, wherein the first diode D1, the second diode D2, and the third diode D3 are schottky diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022466544.0U CN213959969U (en) | 2020-10-30 | 2020-10-30 | Quick start circuit with farad capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022466544.0U CN213959969U (en) | 2020-10-30 | 2020-10-30 | Quick start circuit with farad capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213959969U true CN213959969U (en) | 2021-08-13 |
Family
ID=77205959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022466544.0U Active CN213959969U (en) | 2020-10-30 | 2020-10-30 | Quick start circuit with farad capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213959969U (en) |
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2020
- 2020-10-30 CN CN202022466544.0U patent/CN213959969U/en active Active
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