CN213072146U - Rechargeable real-time clock circuit applied to frame circuit breaker - Google Patents
Rechargeable real-time clock circuit applied to frame circuit breaker Download PDFInfo
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- CN213072146U CN213072146U CN202021525827.1U CN202021525827U CN213072146U CN 213072146 U CN213072146 U CN 213072146U CN 202021525827 U CN202021525827 U CN 202021525827U CN 213072146 U CN213072146 U CN 213072146U
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- chip
- power supply
- clock
- pin
- circuit breaker
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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
Abstract
The utility model relates to a be applied to chargeable real-time clock circuit of frame circuit breaker, including power, clock chip, crystal oscillator, stand-by power supply and charge management module, the power be connected with clock chip and charge management module's input electricity respectively, charge management module's output be connected with stand-by power supply electricity, crystal oscillator and stand-by power supply be connected with clock chip electricity respectively. Compared with the prior art, the utility model discloses a charge management chip and chargeable button cell complex form, the power is normal during operation, and the power passes through charge management chip and charges for chargeable button cell, and after the power outage, can utilize chargeable button cell to supply power for the clock chip, after the stand-by battery loss of avoiding current clock circuit has been accomplished, the clock falls the electricity and can resets, needs to open the shell and changes the condition of battery, effectively reduces the maintenance cost.
Description
Technical Field
The utility model relates to a clock circuit especially relates to a be applied to chargeable real-time clock circuit of frame circuit breaker.
Background
The real-time clock in the frame circuit breaker is used as a part of the frame circuit breaker to provide an accurate time reference for the system, and all events and fault records need accurate occurrence time. The current real-time is mostly obtained by adopting a real-time clock chip, and when a system is powered off, the normal operation of the real-time clock is kept through an additional battery.
When the existing clock circuit system is powered off, the button battery provides electric energy to maintain the normal operation of the chip. The scheme is low in price, stable and reliable, but when the electric energy of the button battery is exhausted, if the system is powered off and restarted, the real-time clock resets time, and errors are caused. And the batteries need to be replaced and recalibrated, the frame circuit breaker needs to be maintained and replaced regularly, which undoubtedly increases the maintenance cost.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to provide a rechargeable real-time clock circuit for a frame circuit breaker, which overcomes the drawbacks of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a but be applied to chargeable real-time clock circuit of frame circuit breaker, includes power, clock chip, crystal oscillator, stand-by power supply and charge management module, the power be connected with clock chip and charge management module's input electricity respectively, charge management module's output be connected with stand-by power supply electricity, crystal oscillator and stand-by power supply be connected with clock chip electricity respectively.
Preferably, the charging management module includes a TP4054 charging chip and a resistor R1, the VDD pin of the TP4054 charging chip is connected to the power supply, the VBAT pin of the TP4054 charging chip is connected to the positive terminal of the standby power supply, the VSS pin of the TP4054 charging chip is grounded, one end of the resistor R1 is connected to the PROG pin of the TP4054 charging chip, and the other end of the resistor R1 is connected to the negative terminal of the standby power supply and grounded.
Preferably, the standby power supply is a rechargeable button battery.
Preferably, the clock circuit further comprises a diode D1, the anode of the diode D1 is connected to the power supply, and the cathode of the diode D1 is connected to the clock chip.
Preferably, the clock circuit further includes a diode D2, the anode of the diode D2 is connected to the standby power supply, and the cathode of the diode D2 is connected to the clock chip.
Preferably, the frequency of the crystal oscillator is 32.768 kHz.
Preferably, the clock chip is a PCF8563 clock chip.
Preferably, a VCC pin of the PCF8563 clock chip is electrically connected to the power supply and the standby power supply, an X1 pin of the PCF8563 clock chip is connected to one end of the crystal oscillator, an X2 pin of the PCF8563 clock chip is connected to the other end of the crystal oscillator, the frame circuit breaker includes a main control chip, an SCL pin of the PCF8563 clock chip is connected to an SCL pin of the main control chip, and an SDA pin of the PCF8563 clock chip is connected to an SDA pin of the main control chip.
Preferably, the voltage of the power supply is 5V.
Preferably, the resistance range of the resistor R1 is greater than or equal to 20K ohms and less than or equal to 100K ohms.
The utility model discloses a clock circuit during operation if the power normally works, is the clock chip power supply by the power to pass through charging management module by the power and charge for stand-by power supply, if the power outage, then be the clock chip power supply by stand-by power supply.
Compared with the prior art, the utility model has the advantages of as follows:
(1) the utility model adopts the form of the matching of the charging management chip and the rechargeable button battery, when the power supply works normally, the power supply charges the rechargeable button battery through the charging management chip, after the power supply is powered off, the rechargeable button battery can be utilized to supply power for the clock chip, the situation that the clock power-down is reset and the battery needs to be replaced by opening the shell after the standby battery of the existing clock circuit is consumed is avoided, and the maintenance cost is effectively reduced;
(2) the utility model utilizes the TP4054 charging chip to charge the standby battery, thereby improving the stability and safety of charging and prolonging the service life of the standby battery;
(3) adopt the utility model discloses clock circuit's frame circuit breaker can fall the power down of system, the back is exhausted to the reserve battery electric energy, need not to change battery and recalibrate time, reduces frame circuit breaker's maintenance cost.
Drawings
Fig. 1 is a circuit structure diagram of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the following description of the embodiments is merely an example of the nature, and the present invention is not intended to limit the application or the use thereof, and the present invention is not limited to the following embodiments.
Examples
A chargeable real-time clock circuit applied to a frame circuit breaker is shown in figure 1 and comprises a power supply, a clock chip, a crystal oscillator, a standby power supply and a charging management module, wherein the power supply is electrically connected with the input ends of the clock chip and the charging management module respectively, the output end of the charging management module is electrically connected with the standby power supply, and the crystal oscillator and the standby power supply are electrically connected with the clock chip respectively.
Specifically, the charging management module comprises a TP4054 charging chip and a resistor R1, the standby power supply is a rechargeable button battery, and the clock circuit further comprises a diode D1 and a diode D2. The VDD pin of the TP4054 charging chip is connected with a power supply, the VBAT pin of the TP4054 charging chip is connected with the anode of a standby power supply, the VSS pin of the TP4054 charging chip is grounded, one end of a resistor R1 is connected with the PROG pin of the TP4054 charging chip, the other end of the resistor R1 is connected with the cathode of the standby power supply and grounded, the anode of a diode D1 is connected with the power supply, the cathode of a diode D1 is connected with a clock chip, the anode of a diode D2 is connected with the standby power supply, and the cathode of a diode D2 is connected with the clock chip. In this embodiment, the voltage of the power supply is 5V, the working voltage of the standby power supply is 3V, and the resistance range of the resistor R1 is greater than or equal to 20K ohms and less than or equal to 100K ohms. In this embodiment, the resistance of the resistor R1 is 100K ohms.
In this embodiment, the clock chip is a PCF8563 clock chip, a VCC pin of the PCF8563 clock chip is electrically connected with the power supply and the standby power supply respectively, a pin X1 of the PCF8563 clock chip is connected with one end of the crystal oscillator, a pin X2 of the PCF8563 clock chip is connected with the other end of the crystal oscillator, the frame circuit breaker includes a main control chip, a SCL pin of the PCF8563 clock chip is connected with a SCL pin of the main control chip, and a SDA pin of the PCF8563 clock chip is connected with an SDA pin of the main control chip. In this embodiment, the frequency of the crystal oscillator is 32.768 kHz.
The utility model discloses a clock circuit during operation if the power normally works, is the clock chip power supply by the power to pass through charging management module by the power and charge for stand-by power supply, if the power outage, then be the clock chip power supply by stand-by power supply.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.
Claims (9)
1. A chargeable real-time clock circuit applied to a frame circuit breaker is characterized by comprising a power supply, a clock chip, a crystal oscillator, a standby power supply and a charging management module, wherein the power supply is respectively and electrically connected with the input ends of the clock chip and the charging management module, the output end of the charging management module is electrically connected with the standby power supply, the crystal oscillator and the standby power supply are respectively and electrically connected with the clock chip,
the charge management module includes TP4054 chip and resistance R1 that charges, TP4054 chip's VDD pin and power connection charge, TP4054 chip's VBAT pin and stand-by power supply's anodal connection charge, TP4054 chip's VSS pin ground connection charge, resistance R1's one end and TP4054 chip's PROG pin connection charge, the other end is connected and ground connection with stand-by power supply's negative pole.
2. The rechargeable rtc circuit for frame circuit breaker as claimed in claim 1, wherein the backup power source is a rechargeable button cell.
3. The chargeable real-time clock circuit applied to a frame circuit breaker as claimed in claim 1, wherein the clock circuit further comprises a diode D1, the anode of the diode D1 is connected to a power supply, and the cathode of the diode D1 is connected to the clock chip.
4. The chargeable real-time clock circuit applied to a frame circuit breaker as claimed in claim 1, wherein the clock circuit further comprises a diode D2, the anode of the diode D2 is connected to a standby power supply, and the cathode of the diode D2 is connected to the clock chip.
5. The chargeable real-time clock circuit applied to a frame circuit breaker as recited in claim 1, wherein the frequency of the crystal oscillator is 32.768 kHz.
6. The rechargeable real-time clock circuit applied to the frame circuit breaker as claimed in claim 1, wherein the clock chip is a PCF8563 clock chip.
7. The rechargeable real-time clock circuit applied to the frame breaker of claim 6, wherein a VCC pin of the PCF8563 clock chip is electrically connected to a power supply and a standby power supply, respectively, a X1 pin of the PCF8563 clock chip is connected to one end of the crystal oscillator, a X2 pin of the PCF8563 clock chip is connected to the other end of the crystal oscillator, the frame breaker comprises a main control chip, an SCL pin of the PCF8563 clock chip is connected to an SCL pin of the main control chip, and an SDA pin of the 8563 clock chip is connected to an SDA pin of the main control chip.
8. The rechargeable rtc circuit for frame circuit breaker according to claim 1, wherein the voltage of the power source is 5V.
9. The rechargeable rtc circuit for frame circuit breaker as claimed in claim 1, wherein the resistance R1 has a resistance value ranging from 20K ohms or more to 100K ohms or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021525827.1U CN213072146U (en) | 2020-07-29 | 2020-07-29 | Rechargeable real-time clock circuit applied to frame circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021525827.1U CN213072146U (en) | 2020-07-29 | 2020-07-29 | Rechargeable real-time clock circuit applied to frame circuit breaker |
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| CN213072146U true CN213072146U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021525827.1U Active CN213072146U (en) | 2020-07-29 | 2020-07-29 | Rechargeable real-time clock circuit applied to frame circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115664392A (en) * | 2022-12-28 | 2023-01-31 | 无锡日联科技股份有限公司 | Clock control circuit and little burnt ray source |
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2020
- 2020-07-29 CN CN202021525827.1U patent/CN213072146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115664392A (en) * | 2022-12-28 | 2023-01-31 | 无锡日联科技股份有限公司 | Clock control circuit and little burnt ray source |
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Effective date of registration: 20221129 Address after: Unit 6809-1, Floor 6, No. 88, Changning Road, Changning District, Shanghai 200042 Patentee after: Shanghai Yimeng Electric Automatism Technology Co.,Ltd. Address before: 200335 room 3101, 3 / F, building 8, 33 Guangshun Road, Changning District, Shanghai Patentee before: SHANGHAI YUNTUN TECHNOLOGY Co.,Ltd. |