CN103019145A - System capable of monitoring and protecting power supply - Google Patents
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- CN103019145A CN103019145A CN2012105570977A CN201210557097A CN103019145A CN 103019145 A CN103019145 A CN 103019145A CN 2012105570977 A CN2012105570977 A CN 2012105570977A CN 201210557097 A CN201210557097 A CN 201210557097A CN 103019145 A CN103019145 A CN 103019145A
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Abstract
The invention discloses a system capable of monitoring and protecting a power supply. The system is used on the power supply and comprises a detection module, a temperature sampling chip module, a signal integration control module and a control terminal module, wherein the detection module is coupled with the signal integration control module and the power supply, the temperature sampling chip module is coupled with the signal integration control module, the signal integration control module is coupled with the detection module, the temperature sampling chip module, the control terminal module and the power supply, and the control terminal module is coupled with the signal integration control module. The system solves the problem of accurate overvoltage, undervoltage, overcurrent and over-temperature protection of a power supply system and intelligent monitoring of the power supply system.
Description
Technical Field
The invention relates to the field of power supply protection and monitoring, in particular to a system capable of realizing power supply monitoring and protection.
Background
In the prior art, the protection of the switching power supply on the input and output overvoltage and undervoltage is based on the parameters of a switching chip, and the protection point cannot be precisely quantized by adopting analog sampling, so that the protection control range is larger and is about 10%; when the protection precision is required to be higher, the functions of accurately protecting the overvoltage and undervoltage of the input and output of the switch power supply are generally realized by adopting comprehensive modes such as circuit redundancy, high-precision device selection, multipoint sampling and the like, but the circuit design is complex in the above modes, and the precision of the protection point is limited to be improved by about 5%.
For the protection of the switch power supply output overcurrent and short circuit, a cut-off type is usually adopted, when the overcurrent or short circuit occurs, the power supply is cut off, and after the switch power supply needs to be restarted, the power supply can normally work; is not conducive to applications requiring self-recovery of power.
For the application environment requiring remote intelligent monitoring of a power supply system, the conventional switch power supply design can only provide power supply turn-off and alarm, and particularly for a multi-output complex power supply system, detailed information of the specific working state of a power supply cannot be provided, so that certain high-end applied equipment is too simple, and the requirement of remote monitoring of a high-requirement unattended station cannot be met.
Therefore, how to realize the accurate protection of the over-voltage, the over-current and the over-temperature of the power supply system and the intelligent monitoring of the power supply system become the problems to be solved urgently.
Disclosure of Invention
The invention aims to provide a system capable of realizing power supply monitoring and protection, so as to solve the problems of accurate protection of over-voltage, under-current and over-temperature of a power supply system and intelligent monitoring of the power supply system.
In order to solve the above technical problem, the present invention provides a system capable of monitoring and protecting a power supply, which is applied to the power supply, and the system comprises: a detection module, a temperature sampling chip module, a signal integrated control module and a control terminal module, wherein,
the detection module is coupled with the signal integrated control module and the power supply and is used for detecting the voltage and the current of the power supply, generating the level signal and sending the level signal to the signal integrated control module;
the temperature sampling chip module is coupled with the signal integrated control module and used for sampling the environmental temperature of the system, generating temperature data information and transmitting the temperature data information to the signal integrated control module;
the signal integration control module is coupled with the detection module, the temperature sampling chip module, the control terminal module and the power supply, and is used for receiving the level signal sent by the detection module and the temperature data information output by the temperature sampling chip module, periodically scanning the level signal to generate working state information, and sending the working state information to the control terminal module;
and the control terminal module is coupled with the signal integrated control module and used for receiving the working state information sent by the signal integrated control module and sending a control signal to the signal integrated control module according to the working state information.
Further, the signal integration control module is further configured to receive a control signal for controlling a power switch state output by the control terminal module, and send the control signal to the power supply.
Further, wherein the operating status information further includes: inputting overvoltage and undervoltage information, outputting overvoltage and undervoltage information, overcurrent information, short-circuit information and overheat information.
Further, wherein the detection module further comprises: the device comprises an input voltage detection module, an output voltage detection module and an output current detection module; wherein
The input voltage detection module is coupled with the signal integrated control module and the power supply and is used for carrying out analog sampling on the input voltage of the power supply, analyzing and comparing the input voltage, generating a level signal and outputting the level signal to the signal integrated control module;
the output voltage detection module is coupled with the signal integrated control module and the power supply and is used for carrying out analog sampling on the output voltage of the power supply, analyzing and comparing the output voltage to generate a level signal and outputting the level signal to the signal integrated control module;
the output current detection module is coupled with the signal integrated control module and the power supply and used for carrying out analog sampling on the output current of the power supply, analyzing and comparing the output current, generating a level signal and outputting the level signal to the signal integrated control module.
Further, the input voltage detection module further includes: a high-precision voltage-dividing resistor and a comparator; wherein,
the high-precision voltage division resistor is coupled with the comparator and the power supply and used for carrying out analog sampling on the input voltage and outputting a sampling value to the comparator;
and the comparator is coupled with the high-precision voltage-dividing resistor and the signal integrated control module and is used for receiving a sampling value output by the high-precision voltage-dividing resistor, comparing the sampling value with a reference voltage in the comparator, generating a level signal and outputting the level signal to the signal integrated control module.
Further, the output voltage detection module further includes: a high-precision voltage-dividing resistor and a comparator, wherein,
the high-precision voltage division resistor is coupled with the comparator and the power supply and used for carrying out analog sampling on output voltage and transmitting a sampling value to the comparator;
and the comparator is coupled with the high-precision voltage-dividing resistor and the signal integrated control module and is used for receiving a sampling value output by the high-precision voltage-dividing resistor, comparing the sampling value with a reference voltage in the comparator, generating a level signal and outputting the level signal to the signal integrated control module.
Further, wherein the current detection module further includes: a high-precision current sampling resistor, an amplifier and a comparator; wherein,
the high-precision current sampling resistor is coupled with the amplifier and the power supply and is used for carrying out analog sampling on the output current, generating a voltage value which is in linear relation with the current magnitude and outputting the voltage value to the amplifier;
the amplifier is coupled with the high-precision current sampling resistor and the comparator and used for receiving the voltage value output by the high-precision current sampling resistor, amplifying the voltage value and outputting the amplified voltage value to the comparator;
the comparator is coupled with the amplifier and the signal integrated control module, and is used for receiving the voltage amplified by the amplifier, comparing the voltage with a reference voltage in the comparator, generating a level signal and outputting the level signal to the signal integrated control module.
Further, the signal integration control module is further configured to translate codes of the temperature signals output by the temperature sampling chip module into temperature data, and determine whether the power supply exceeds an over-temperature protection point according to the temperature data.
Further, the signal integration control module is further configured to transmit input overvoltage and undervoltage information, output overvoltage and undervoltage information, overcurrent information, short-circuit information, and overheat information of the power supply to the control terminal module.
Further, the transmission is through a digital circuit, and a serial port of the digital circuit is composed of serial ports of RS422 or RS232 models.
Compared with the prior art, the system capable of realizing power supply monitoring and protection provided by the invention achieves the following technical effects:
1) the system capable of realizing power supply monitoring and protection abandons the design idea of the traditional switching power supply chip as the main body of the precise protection circuit, applies the brand-new analog circuit sampling, digital circuit precise comparison and centralized control technology, can flexibly set various protection modes and state control of the power supply according to the system requirements, greatly increases the protection precision control range to about 1 percent, solves the design problems of precise protection of power supply input and output over-voltage and under-voltage, output over-current and power supply system over-temperature, and has better practicability and higher reliability.
2) The system capable of realizing power supply monitoring and protection adopts the signal processing centralized control module to monitor in real time, flexibly sets various protection modes and state control of the power supply, simultaneously reports the real-time state and specific fault mode of the power supply to the control terminal module of the system, realizes intelligent monitoring of unattended power supply equipment, and better achieves the functions of remote monitoring, intelligent setting and perfect alarm of a high-end application environment power supply system.
3) The system capable of realizing power supply monitoring and protection can meet the application requirements of power supply protection and self-recovery under the condition of large impact of external power supply environment.
4) The system capable of realizing power supply monitoring and protection can be configured according to the use requirement of the system in specific application, is flexible, simple and convenient, and is convenient for simple function upgrade requirements of most of the old power supply systems.
Drawings
Fig. 1 is a block diagram of a system capable of monitoring and protecting a power supply according to a first embodiment of the present invention.
Fig. 2 is a specific structural block diagram of a detection module in the system according to the first embodiment of the present invention shown in fig. 1.
Fig. 3 is a structural circuit diagram of specific components in the detection module of the system in fig. 2 according to the first embodiment of the present invention.
Fig. 4 is a circuit diagram of an embodiment of an input voltage detection module in the system according to the present invention.
Fig. 5 is a circuit diagram of an embodiment of an output voltage detecting module or a current detecting module in the system according to the present invention.
Fig. 6 is a circuit diagram of a specific implementation of the signal integration control module in the system according to an embodiment of the present invention.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The following description is of the preferred embodiment for carrying out the invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.
The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1, the system for monitoring and protecting a power supply according to the present invention is applied to a power supply, and includes: a detection module 10, a temperature sampling chip module 20, a signal integration control module 30 and a control terminal module 40, wherein,
the detection module 10 is coupled to the signal integrated control module 30 and the power supply, and is configured to detect a voltage and a current of the power supply, generate a level signal, and send the level signal to the signal integrated control module 30.
The temperature sampling chip module 20 is coupled to the signal integrated control module 30, and configured to sample an ambient temperature of the system, generate temperature data information, and transmit the temperature data information to the signal integrated control module 30.
The signal integration control module 30 is coupled to the detection module 10, the temperature sampling chip module 20, the control terminal module 40 and the power supply, and is configured to receive the level signal sent by the detection module 10 and the temperature data information output by the temperature sampling chip module 20, perform periodic scanning, generate working state information, send the working state information to the control terminal module 40, receive a control signal for controlling the power switch state output by the control terminal module 40, and send the control signal to the power supply.
In a specific embodiment, the operation state information generated by the signal integration control module 30 may include: inputting overvoltage and undervoltage information, outputting overvoltage and undervoltage information, overcurrent information, short circuit information, overheat information and the like, which is not limited herein.
The control terminal module 40 is coupled to the signal integrated control module 30, and configured to receive the working state information sent by the signal integrated control module 30, and send a control signal to the signal integrated control module 30 according to the working state information.
Further, as shown in fig. 2, the detection module 10 includes: an input voltage detection module 101, an output voltage detection module 102 and an output current detection module 103; wherein
The input voltage detection module 101 is coupled to the signal integrated control module 30 and the power supply, and configured to perform analog sampling on the input voltage of the power supply, perform analysis and comparison, generate a level signal of the input voltage, and output the level signal of the input voltage to the signal integrated control module 30.
The output voltage detection module 102 is coupled to the signal integrated control module 30 and the power supply, and configured to perform analog sampling on the output voltage of the power supply, perform analysis and comparison, generate a level signal of the output voltage, and output the level signal of the output voltage to the signal integrated control module 30.
The output current detection module 103 is coupled to the signal integrated control module 30 and the power supply, and configured to perform analog sampling on the output current of the power supply, perform analysis and comparison, generate a level signal of the output current, and output the level signal of the output current to the signal integrated control module 30.
Further, the signal integration control module 30 is coupled to the input voltage detection module 101, the output voltage detection module 102, the output current detection module 103, the temperature sampling chip module 20, the control terminal module 40, and the power supply, and is configured to receive the level signal of the input voltage, the level signal of the output current, and the temperature data information output by the temperature sampling chip module 20, which are sent by the input voltage detection module 101, the output voltage detection module 102, and the output current detection module 103, perform periodic scanning, generate working state information, send the working state information to the control terminal module 40, receive the control signal output by the control terminal module 40, which controls the switching state of the power supply, and send the control signal to the power supply.
Further, as shown in fig. 3, the input voltage detection module 101 includes: a high-precision voltage divider resistor 1011 and a comparator 1012; wherein,
the high-precision voltage dividing resistor 1011 is coupled to the comparator 1012 and the power supply, and is configured to perform analog sampling on the input voltage and output the sampled value to the comparator 1012.
The comparator 1012 is coupled to the high-precision voltage divider resistor 1011 and the signal integrated control module 30, and configured to receive a sampling value output by the high-precision voltage divider resistor 1011, compare the sampling value with a reference voltage in the comparator 1012, generate a level signal of an input voltage, and output the level signal to the signal integrated control module 30.
The output voltage detection module 102 includes: a high-precision voltage divider resistor 1021 and a comparator 1022, wherein,
the high-precision voltage-dividing resistor 1021 is coupled to the comparator 1022 and the power supply, and is used for performing analog sampling on the output voltage and transmitting the sampled value to the comparator 1022.
The comparator 1022 is coupled to the high-precision voltage divider resistor 1021 and the signal integration control module 30, and configured to receive a sample value output by the high-precision voltage divider resistor 1021, compare the sample value with a reference voltage in the comparator 1022, generate a level signal of an output voltage, and output the level signal to the signal integration control module 30.
The current detection module 103 includes: a high-precision current sampling resistor 1031, an amplifier 1032, and a comparator 1033; wherein,
the high-precision current sampling resistor 1031 is coupled to the amplifier 1032 and the power supply, and is configured to perform analog sampling on the output current, generate a voltage value (several tens of millivolts) having a linear relationship with the current magnitude, and output the voltage value to the amplifier 1032.
The amplifier 1032 is coupled to the high-precision current sampling resistor 1031 and the comparator 1033, and configured to receive the voltage value output by the high-precision current sampling resistor 1031, amplify the voltage value, and output the amplified voltage value to the comparator 1033.
The comparator 1033 is coupled to the amplifier 1032 and the signal integration control module 30, and configured to receive the voltage amplified by the amplifier 1032, compare the voltage with the reference voltage in the comparator 1033, generate a level signal of an output current, and output the level signal of the output current to the signal integration control module 30.
The following is a specific embodiment of a system for monitoring and protecting a power supply according to the present invention.
Fig. 4 is a circuit diagram of an embodiment of the input voltage detection module 101, as shown in fig. 3, wherein the comparator 1012 is coupled to the high-precision voltage divider resistor 1011 and the signal integrated control module 30, and is configured to receive the input voltage output by the high-precision voltage divider resistor 1011 and compare the input voltage with a reference voltage in the comparator 1012 to form a voltage window, when the input voltage is within an overvoltage and undervoltage limit range, which generally means within a range of ± 15% of the reference voltage, the input voltage detection module 101 outputs a high-level signal to the signal integrated control module 30, and when the voltage is beyond the overvoltage and undervoltage limit range, which is beyond the range of ± 15% of the reference voltage, the input voltage detection module 101 outputs a low-level signal to the signal integrated control module 30.
Fig. 5 is a circuit diagram of an embodiment of the output voltage detection module 102 or the current detection module 103, as shown in fig. 3, wherein the comparator 1022 is coupled to the high-precision voltage divider 1021 and the signal integration control module 30, for receiving the output voltage from the high-precision voltage divider 1021, and comparing the output voltage with the reference voltage from the comparator 1022, forming a voltage window, when the output voltage is within the limit range of overvoltage and undervoltage, generally within the range of +/-15% of the reference voltage, the output voltage detection module 101 outputs a high level signal to the signal integration control module 30, and when the output voltage exceeds the overvoltage and undervoltage limit range, i.e., out of the reference voltage by ± 15%, the input voltage detection module 101 outputs a low level signal to the signal integration control module 30. The comparator 1033 is coupled to the amplifier 1032 and the signal integration control module 30, and configured to receive the voltage amplified by the amplifier 1032, compare the voltage with a reference voltage in the comparator 1033, and when an output current is less than or equal to an overcurrent protection point, the output current detection module 103 outputs a high-level signal to the signal integration control module 30; when the output current is greater than the overcurrent protection point, the output current detection module 103 outputs a low level signal to the signal integration control module 30, and the overcurrent protection point is manually set according to the requirement of the power supply system, and is set corresponding to the reference voltage in the comparator 1033, which is not specifically limited herein.
Fig. 6 is a circuit diagram of an embodiment of the signal integration control module 30. As shown in fig. 3, the signal integration control module 30 is configured to receive a high level signal and a low level signal respectively sent by the input voltage detection module 101, the output voltage detection module 102, and the output current detection module 103, and when receiving the high level signal, indicate that the power supply system is operating normally; when a low level signal is received, outputting a fault signal and simultaneously closing a power supply; the signal integrated control module 30 further receives temperature data information output by the temperature sampling chip module 20, judges whether the power supply system exceeds an over-temperature protection point according to the temperature data information, and turns off the power supply when the temperature exceeds the over-temperature protection point; otherwise, no processing is performed. Then, the input voltage information output by the input voltage detection module 101, the output voltage information output by the output voltage detection module 102, the output current information output by the output current detection module 103 and/or the temperature data information output by the temperature sampling chip module 20, which send low level signals to the signal integrated control module 30, are periodically scanned, and when the phenomena of input over-voltage, output over-current, short circuit and/or overheating are detected to be eliminated, the signal integrated control module 30 outputs a startup signal, and the power supply automatically recovers to work; the temperature protection point can be set arbitrarily according to specific requirements, and is not limited specifically herein. The signal integration control module 30 uploads the working state information of the power supply system, such as input over-voltage and under-voltage information, output over-voltage and under-voltage information, over-current information, short-circuit information, overheating information, and the like, to the control terminal module 40. And receiving control instruction information sent by the control terminal module 40.
Further, the signal integration control module 30 is further configured to translate the code representing the temperature signal output by the temperature sampling chip module 20 into temperature data, and determine whether the power supply system exceeds the over-temperature protection point according to the temperature data.
Further, the signal integrated control module 30 uploads the working state information of the power supply system, such as input over-voltage and under-voltage information, output over-voltage and under-voltage information, over-current information, short-circuit information, overheating information, and the like, to the control terminal module 40 through a digital circuit, and the serial port of the signal integrated control module can adopt different forms, such as RS422, RS232, and the like, according to requirements, and is not limited specifically herein.
The control terminal module 40 is coupled to the signal integrated control module 30, and is configured to receive input over-voltage and under-voltage information, output over-voltage and under-voltage information, over-current information, short-circuit information, overheating information, and the like of the power supply system sent by the signal integrated control module 30, and can implement detailed display of a real-time working state of the power supply; and sends control instruction information to the signal integrated control module 30 to implement remote control of the power supply system.
Compared with the prior art, the system capable of realizing power supply monitoring and protection provided by the invention achieves the following technical effects:
1) the system capable of realizing power supply monitoring and protection abandons the design idea of the traditional switching power supply chip as the main body of the precise protection circuit, applies the brand-new analog circuit sampling, digital circuit precise comparison and centralized control technology, can flexibly set various protection modes and state control of the power supply according to the system requirements, greatly increases the protection precision control range to about 1 percent, solves the design problems of precise protection of power supply input and output over-voltage and under-voltage, output over-current and power supply system over-temperature, and has better practicability and higher reliability.
2) The system capable of realizing power supply monitoring and protection adopts the signal processing centralized control module to monitor in real time, flexibly sets various protection modes and state control of the power supply, simultaneously reports the real-time state and specific fault mode of the power supply to the control terminal module of the system, realizes intelligent monitoring of unattended power supply equipment, and better achieves the functions of remote monitoring, intelligent setting and perfect alarm of a high-end application environment power supply system.
3) The system capable of realizing power supply monitoring and protection can meet the application requirements of power supply protection and self-recovery under the condition of large impact of external power supply environment.
4) The system capable of realizing power supply monitoring and protection can be configured according to the use requirement of the system in specific application, is flexible, simple and convenient, and is convenient for simple function upgrade requirements of most of the old power supply systems.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A system capable of realizing power supply monitoring and protection is applied to a power supply and comprises: a detection module, a temperature sampling chip module, a signal integrated control module and a control terminal module, wherein,
the detection module is coupled with the signal integrated control module and the power supply and is used for detecting the voltage and the current of the power supply, generating the level signal and sending the level signal to the signal integrated control module;
the temperature sampling chip module is coupled with the signal integrated control module and used for sampling the environmental temperature of the system, generating temperature data information and transmitting the temperature data information to the signal integrated control module;
the signal integration control module is coupled with the detection module, the temperature sampling chip module, the control terminal module and the power supply, and is used for receiving the level signal sent by the detection module and the temperature data information output by the temperature sampling chip module, periodically scanning the level signal to generate working state information, and sending the working state information to the control terminal module;
and the control terminal module is coupled with the signal integrated control module and used for receiving the working state information sent by the signal integrated control module and sending a control signal to the signal integrated control module according to the working state information.
2. The system for monitoring and protecting a power supply according to claim 1, wherein the signal integration control module is further configured to receive a control signal for controlling a power switch state output by the control terminal module and send the control signal to the power supply.
3. The system for enabling power monitoring and protection according to claim 1, wherein the operating status information further comprises: inputting overvoltage and undervoltage information, outputting overvoltage and undervoltage information, overcurrent information, short-circuit information and overheat information.
4. The system for enabling power monitoring and protection of claim 1, wherein the detection module further comprises: the device comprises an input voltage detection module, an output voltage detection module and an output current detection module; wherein
The input voltage detection module is coupled with the signal integrated control module and the power supply and is used for carrying out analog sampling on the input voltage of the power supply, analyzing and comparing the input voltage, generating a level signal and outputting the level signal to the signal integrated control module;
the output voltage detection module is coupled with the signal integrated control module and the power supply and is used for carrying out analog sampling on the output voltage of the power supply, analyzing and comparing the output voltage to generate a level signal and outputting the level signal to the signal integrated control module;
the output current detection module is coupled with the signal integrated control module and the power supply and used for carrying out analog sampling on the output current of the power supply, analyzing and comparing the output current, generating a level signal and outputting the level signal to the signal integrated control module.
5. The system for enabling power monitoring and protection of claim 4, wherein the input voltage detection module further comprises: a high-precision voltage-dividing resistor and a comparator; wherein,
the high-precision voltage division resistor is coupled with the comparator and the power supply and used for carrying out analog sampling on the input voltage and outputting a sampling value to the comparator;
and the comparator is coupled with the high-precision voltage-dividing resistor and the signal integrated control module and is used for receiving a sampling value output by the high-precision voltage-dividing resistor, comparing the sampling value with a reference voltage in the comparator, generating a level signal and outputting the level signal to the signal integrated control module.
6. The system for monitoring and protecting a power supply of claim 4, wherein the output voltage detection module further comprises: a high-precision voltage-dividing resistor and a comparator, wherein,
the high-precision voltage division resistor is coupled with the comparator and the power supply and used for carrying out analog sampling on output voltage and transmitting a sampling value to the comparator;
and the comparator is coupled with the high-precision voltage-dividing resistor and the signal integrated control module and is used for receiving a sampling value output by the high-precision voltage-dividing resistor, comparing the sampling value with a reference voltage in the comparator, generating a level signal and outputting the level signal to the signal integrated control module.
7. The system for enabling power monitoring and protection of claim 4, wherein the current detection module further comprises: a high-precision current sampling resistor, an amplifier and a comparator; wherein,
the high-precision current sampling resistor is coupled with the amplifier and the power supply and is used for carrying out analog sampling on the output current, generating a voltage value which is in linear relation with the current magnitude and outputting the voltage value to the amplifier;
the amplifier is coupled with the high-precision current sampling resistor and the comparator and used for receiving the voltage value output by the high-precision current sampling resistor, amplifying the voltage value and outputting the amplified voltage value to the comparator;
the comparator is coupled with the amplifier and the signal integrated control module, and is used for receiving the voltage amplified by the amplifier, comparing the voltage with a reference voltage in the comparator, generating a level signal and outputting the level signal to the signal integrated control module.
8. The system for monitoring and protecting a power supply according to claim 1, wherein the signal integration control module is further configured to translate a code of the temperature signal output by the temperature sampling chip module into temperature data, and determine whether the power supply exceeds an over-temperature protection point according to the temperature data.
9. The system according to claim 1, wherein the signal integration control module is further configured to transmit input over-voltage and under-voltage information, output over-voltage and under-voltage information, over-current information, short-circuit information, and over-temperature information of the power supply to the control terminal module.
10. The system for monitoring and protecting a power supply of claim 9, wherein the transmission is through a digital circuit, and the serial port of the digital circuit is composed of serial ports of RS422 or RS232 types.
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| CN105137365A (en) * | 2015-08-31 | 2015-12-09 | 湖南省普安建设工程有限公司 | Three-phase power monitoring system and method |
| WO2016138835A1 (en) * | 2015-03-05 | 2016-09-09 | 深圳市九洲电器有限公司 | Improved power source management device |
| CN106841882A (en) * | 2017-04-13 | 2017-06-13 | 国家电网公司 | The health status detection means and detection method of modified relay protecting power plug-in unit |
| CN107255955A (en) * | 2017-06-02 | 2017-10-17 | 合肥同佑电子科技有限公司 | A kind of power supply switch control system |
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| CN105137365A (en) * | 2015-08-31 | 2015-12-09 | 湖南省普安建设工程有限公司 | Three-phase power monitoring system and method |
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| CN111181134A (en) * | 2020-01-11 | 2020-05-19 | 安徽成业电子科技有限公司 | Switching power supply protection circuit and protection method thereof |
| CN111371411A (en) * | 2020-04-30 | 2020-07-03 | 成都声光微科技有限公司 | Ultra-low power consumption drive control and protection circuit of radio frequency amplifier |
| CN111371411B (en) * | 2020-04-30 | 2024-06-04 | 成都声光微科技有限公司 | Ultralow-power-consumption driving control and protection circuit of radio frequency amplifier |
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Application publication date: 20130403 |