CN217980395U - Intelligent framework circuit breaker based on DSP control - Google Patents
Intelligent framework circuit breaker based on DSP control Download PDFInfo
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- CN217980395U CN217980395U CN202221795014.3U CN202221795014U CN217980395U CN 217980395 U CN217980395 U CN 217980395U CN 202221795014 U CN202221795014 U CN 202221795014U CN 217980395 U CN217980395 U CN 217980395U
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Abstract
The utility model discloses an intelligent frame circuit breaker based on DSP control relates to the circuit breaker field, and this intelligent frame circuit breaker based on DSP control includes: the voltage supply circuit is used for supplying power to the linear isolation circuit, the fault judgment circuit and the follow-up output circuit; the linear isolation circuit is used for receiving analog signals of current information, voltage information and temperature information and outputting the analog signals to the fault judgment module in a linear mode; compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a linear isolation circuit comes to export for the fault determination circuit after the linear isolation of electric current, voltage, the temperature information of gathering, judges through the fault determination circuit whether electric current, voltage, temperature information are unusual, at last through OR gate, follow output circuit output, export relevant information for the GPIO pin of DSP chip through a GPIO pin, compare in a plurality of GPIO pins in the past, the wiring is more succinct.
Description
Technical Field
The utility model relates to a circuit breaker field specifically is an intelligent frame circuit breaker based on DSP control.
Background
The breaker is used for cutting off and connecting a load circuit and cutting off a fault circuit, so that the accident is prevented from being enlarged, and the safe operation is ensured. At present, a DSP is commonly used for receiving circuit information and controlling a circuit breaker to break a power supply line when a fault occurs.
And the DSP is selected as a control chip, and information such as current, voltage, temperature and the like of a power supply line needs to be acquired and output to a plurality of GPIO ports of the DSP chip, so that wiring is complex and needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligent frame circuit breaker based on DSP control to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an intelligent frame circuit breaker based on DSP control, comprising:
the current acquisition module is used for acquiring current information of a power supply line, converting the current information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the voltage acquisition module is used for acquiring voltage information of a power supply line, converting the voltage information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the temperature acquisition module is used for acquiring temperature information of the power supply line, converting the temperature information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the analog-to-digital conversion module is used for converting the analog signals into digital signals and outputting electric signals to the DSP main control module when current information, voltage information and temperature information of a power supply line exceed threshold values;
the DSP main control module is used for triggering the circuit breaking control module to work when receiving the electric signal;
the circuit breaking control module is used for cutting off a power supply circuit during working;
the analog-to-digital conversion module comprises:
the voltage supply circuit is used for supplying power to the linear isolation circuit, the fault judgment circuit and the following output circuit;
the linear isolation circuit is used for receiving analog signals of current information, voltage information and temperature information and outputting the analog signals to the fault judgment module in a linear mode;
the fault judgment module is used for judging whether the current information, the voltage information and the temperature information exceed the threshold value or not, and outputting voltage to the following output circuit when at least one exceeds the threshold value;
the following output circuit is used for buffering output voltage to the DSP main control module;
the current acquisition module is connected with the linear isolation circuit, the voltage acquisition module is connected with the linear isolation circuit, the temperature acquisition module is connected with the linear isolation circuit, the linear isolation circuit is connected with the fault judgment circuit, the fault judgment circuit is connected with the follow output circuit, the voltage supply circuit is connected with the linear isolation circuit, the fault judgment circuit, the follow output circuit and the follow output circuit, and the DSP main control module is connected with the circuit break control module.
As the utility model discloses further scheme again: the voltage supply circuit comprises a resistor R1, a voltage stabilizer U1 and a capacitor C1. 12V voltage is connected to resistance R1's one end, and stabiliser U1's input is connected to resistance R1's the other end, and stabiliser U1's earthing terminal ground connection, capacitor C1's one end, linear isolation circuit, fault diagnosis circuit, follow output circuit are connected to stabiliser U1's output, and capacitor C1's the other end ground connection.
As the utility model discloses further scheme again: linear buffer circuit includes three linear isolation unit, every linear isolation unit includes resistance R2, amplifier U2, resistance R3, opto-coupler U3, amplifier U4, resistance R4, amplifier U2's homophase end ground connection, amplifier U2's inverting terminal connecting resistance R2's one end, opto-coupler U3's No. 3 pin, current collection module/voltage collection module/temperature acquisition module are connected to resistance R2's the other end, amplifier U2's output connecting resistance R3's one end, no. 1 pin of opto-coupler U3 is connected to resistance R3's the other end, no. 2 pins of opto-coupler U3 connect the voltage supply module, no. 4 pin ground connection of opto-coupler U3, no. 5 pin ground connection of opto-coupler U3, no. 6 pin of opto-coupler U3 connects amplifier U4's inverting terminal, resistance R4's one end, amplifier U4's homophase end ground connection, amplifier U4's output connecting resistance R4's the other end, amplifier U4's output signal VOUT1/VOUT2/VOUT3.
As a further aspect of the present invention: the fault judgment circuit comprises a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a diode D6, a resistor R5, a resistor R6, a resistor R7 and an OR gate U5, wherein the cathode of the diode D1 is connected with an output signal VOUT1, the cathode of the diode D3 is connected with an output signal VOUT2, the cathode of the diode D5 is connected with an output signal VOUT3, the anode of the diode D1 is connected with the anode of the diode D2, the cathode of the diode D2 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with the first end of the input end of the OR gate U5, the anode of the resistor R5 is connected with the anode of the diode D6, the cathode of the diode D6 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with the first end of the input end of the OR gate U5, or the output end of the U5 is connected with a following output circuit.
As a further aspect of the present invention: the following output circuit comprises a resistor R8 and an amplifier U6, one end of the resistor R8 is connected with the fault judgment module, the other end of the resistor R8 is connected with the in-phase end of the amplifier U6, the inverting end of the amplifier U6 is connected with the output end of the amplifier U6, and the output end of the amplifier U6 is connected with the GPIO pin of the DSP main control module.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a linear isolation circuit comes to export for the fault determination circuit after the linear isolation of electric current, voltage, the temperature information of gathering, judges through the fault determination circuit whether electric current, voltage, temperature information are unusual, at last through OR gate, follow output circuit output, export relevant information for the GPIO pin of DSP chip through a GPIO pin, compare in a plurality of GPIO pins in the past, the wiring is more succinct.
Drawings
Fig. 1 is a schematic diagram of an intelligent frame circuit breaker based on DSP control.
Fig. 2 is a schematic diagram of an analog-to-digital conversion module.
Fig. 3 is a circuit diagram of an analog-to-digital conversion module.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 and 2, an intelligent frame circuit breaker based on DSP control includes:
the current acquisition module is used for acquiring current information of a power supply line, converting the current information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the voltage acquisition module is used for acquiring voltage information of a power supply line, converting the voltage information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the temperature acquisition module is used for acquiring temperature information of the power supply line, converting the temperature information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the analog-to-digital conversion module is used for converting the analog signals into digital signals and outputting electric signals to the DSP main control module when current information, voltage information and temperature information of a power supply line exceed threshold values;
the DSP main control module is used for triggering the circuit breaking control module to work when receiving the electric signal;
the circuit breaking control module is used for cutting off a power supply circuit during working;
the analog-to-digital conversion module comprises:
the voltage supply circuit is used for supplying power to the linear isolation circuit, the fault judgment circuit and the follow-up output circuit;
the linear isolation circuit is used for receiving analog signals of current information, voltage information and temperature information and outputting the analog signals to the fault judgment module in a linear mode;
the fault judgment module is used for judging whether the current information, the voltage information and the temperature information exceed the threshold value or not, and outputting voltage to the following output circuit when at least one exceeds the threshold value;
the following output circuit is used for buffering output voltage to the DSP main control module;
the current acquisition module is connected with the linear isolation circuit, the voltage acquisition module is connected with the linear isolation circuit, the temperature acquisition module is connected with the linear isolation circuit, the linear isolation circuit is connected with the fault judgment circuit, the fault judgment circuit is connected with the follow output circuit, the voltage supply circuit is connected with the linear isolation circuit, the fault judgment circuit, the follow output circuit and the follow output circuit, and the DSP main control module is connected with the circuit break control module.
In a specific embodiment: the DSP main control module adopts a DSP chip, the model can be TMS320C6000, one GPIO receives the input level of the analog-to-digital conversion module, when the voltage, the current and the temperature exceed threshold values, the analog-to-digital conversion module outputs high level to the GPIO pin, the DSP chip receives the high level, the circuit breaking control module is triggered to work through the other GPIO pin, and the circuit control module breaks a power supply circuit.
In this embodiment: referring to fig. 3, the voltage supply circuit includes a resistor R1, a regulator U1, and a capacitor C1. 12V voltage is connected to resistance R1's one end, and resistance R1's the other end is connected stabiliser U1's input, stabiliser U1's earthing terminal ground connection, and electric capacity C1's one end, linear isolation circuit, failure diagnosis circuit, follow output circuit are connected to stabiliser U1's output, and electric capacity C1's the other end ground connection.
The input 12V voltage is limited by a resistor R1 and then output to a voltage stabilizer U1, and the voltage stabilizer U1 outputs constant voltage VCC for power supply.
In this embodiment: referring to fig. 3, the linear isolation circuit includes three linear isolation units, each linear isolation unit includes a resistor R2, an amplifier U2, a resistor R3, an optical coupler U3, an amplifier U4, a resistor R4, a non-inverting terminal of the amplifier U2 is grounded, an inverting terminal of the amplifier U2 is connected to one end of the resistor R2, a No. 3 pin of the optical coupler U3, the other end of the resistor R2 is connected to a current collection module/a voltage collection module/a temperature collection module, an output terminal of the amplifier U2 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to a No. 1 pin of the optical coupler U3, a No. 2 pin of the optical coupler U3 is connected to a voltage supply module, a No. 4 pin of the optical coupler U3 is grounded, a No. 5 pin of the optical coupler U3 is grounded, a No. 6 pin of the optical coupler U3 is connected to an inverting terminal of the amplifier U4, one end of the resistor R4, a non-inverting terminal of the amplifier U4 is grounded, an output terminal of the amplifier U4 is connected to the other end of the resistor R4, and an output signal VOUT 1/2/VOUT 3 is output from the amplifier U4.
The current signal VIN1, the voltage signal VIN2 and the temperature signal VIN3 of the current collection module, the voltage collection module and the temperature collection module are input, the model of the optical coupler U3 is HCNR200 and is used as a linear optical coupler, so that the output signal VOUT1/VOUT2/VOUT3 and the input signal VIN1/VIN2/VIN3 are in a linear relation, and the output signal VOUT1/VOUT2/VOUT3 outputs an analog signal corresponding to the input signal VIN1/VIN2/VIN 3.
In this embodiment: referring to fig. 3, the fault determining circuit includes a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a diode D6, a resistor R5, a resistor R6, a resistor R7, and an or gate U5, a cathode of the diode D1 is connected to the output signal VOUT1, a cathode of the diode D3 is connected to the output signal VOUT2, a cathode of the diode D5 is connected to the output signal VOUT3, an anode of the diode D1 is connected to an anode of the diode D2, a cathode of the diode D2 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to a first end of an input terminal of the or gate U5, an anode of the diode D5 is connected to an anode of the diode D4, an anode of the diode D3 is connected to an anode of the diode D4, a cathode of the diode D4 is connected to one end of the resistor R6, the other end of the resistor R6 is connected to a second end of an input terminal of the or gate U5, a cathode of the diode D6 is connected to one end of the resistor R7, and the other end of the input terminal of the resistor R7 is connected to a third terminal of the output gate U5.
The diodes D1, D3 and D5 are voltage stabilizing diodes, when the current, the voltage and the temperature are normal, the signal VOUT1/VOUT2/VOUT3 cannot break down the diode D1/D3/D5, the current is taken as an example when the current is abnormal and is large, the signal VOUT1 is large, the diode D1 is broken down, the light emitting diode D2 emits light to indicate, the first end of the input end of the OR gate U5 is high level, the OR gate U5 outputs high level, and due to the existence of the OR gate U5, when at least one of the current, the voltage and the temperature is abnormal, the OR gate U5 outputs high level. The OR gate U5 only outputs high level and low level, and converts the input analog signal VOUT1/VOUT2/VOUT3 into digital signal output.
In this embodiment: referring to fig. 3, the follower output circuit includes a resistor R8 and an amplifier U6, one end of the resistor R8 is connected to the fault determination module, the other end of the resistor R8 is connected to the non-inverting terminal of the amplifier U6, the inverting terminal of the amplifier U6 is connected to the output terminal of the amplifier U6, and the output terminal of the amplifier U6 is connected to the GPIO pin of the DSP main control module.
Amplifier U6 uses as the follower, exports the GPIO pin that the high level given DSP host system module when inputing the high level, and traditional DSP chip often all can connect triggering signal such as electric current, voltage, temperature respectively through a plurality of GPIO pins, the utility model discloses combine it at a GPIO pin, simplify the wiring of DSP chip.
The utility model discloses a theory of operation is: the temperature acquisition module acquires temperature information of the power supply line, converts the temperature information into an analog signal and outputs the analog signal to the analog-to-digital conversion module, the analog-to-digital conversion module converts the analog signal into a digital signal, and when the current information, the voltage information and the temperature information of the power supply line exceed threshold values, an electric signal is output to the DSP main control module; when the DSP main control module receives the electric signal, the disconnection control module is triggered to work; the circuit breaking control module cuts off a power supply circuit when working; the analog-to-digital conversion module comprises: the voltage supply circuit supplies power to the linear isolation circuit, the fault judgment circuit and the following output circuit, the linear isolation circuit receives analog signals of current information, voltage information and temperature information and linearly outputs the analog signals to the fault judgment module, the fault judgment module judges whether the current information, the voltage information and the temperature information exceed threshold values, when at least one of the current information, the voltage information and the temperature information exceeds the threshold values, the voltage is output to the following output circuit, and the following output circuit buffers and outputs the voltage to the DSP main control module.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides an intelligent frame circuit breaker based on DSP control which characterized in that:
this intelligent frame circuit breaker based on DSP control includes:
the current acquisition module is used for acquiring current information of a power supply line, converting the current information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the voltage acquisition module is used for acquiring voltage information of a power supply line, converting the voltage information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the temperature acquisition module is used for acquiring temperature information of the power supply line, converting the temperature information into an analog signal and outputting the analog signal to the analog-to-digital conversion module;
the analog-to-digital conversion module is used for converting the analog signal into a digital signal and outputting an electric signal to the DSP main control module when the current information, the voltage information and the temperature information of the power supply line exceed threshold values;
the DSP main control module is used for triggering the circuit breaking control module to work when receiving the electric signal;
the circuit breaking control module is used for cutting off a power supply circuit during working;
the analog-to-digital conversion module comprises:
the voltage supply circuit is used for supplying power to the linear isolation circuit, the fault judgment circuit and the follow-up output circuit;
the linear isolation circuit is used for receiving analog signals of current information, voltage information and temperature information and outputting the analog signals to the fault judgment module in a linear mode;
the fault judgment module is used for judging whether the current information, the voltage information and the temperature information exceed the threshold value or not, and outputting voltage to the following output circuit when at least one exceeds the threshold value;
the following output circuit is used for buffering output voltage to the DSP main control module;
the current acquisition module is connected with the linear isolation circuit, the voltage acquisition module is connected with the linear isolation circuit, the temperature acquisition module is connected with the linear isolation circuit, the linear isolation circuit is connected with the fault judgment circuit, the fault judgment circuit is connected with the follow output circuit, the voltage supply circuit is connected with the linear isolation circuit, the fault judgment circuit, the follow output circuit and the follow output circuit, and the DSP main control module is connected with the circuit break control module.
2. The intelligent framework circuit breaker based on DSP control of claim 1, wherein the voltage supply circuit comprises a resistor R1, a voltage regulator U1 and a capacitor C1, one end of the resistor R1 is connected with 12V voltage, the other end of the resistor R1 is connected with the input end of the voltage regulator U1, the grounding end of the voltage regulator U1 is grounded, the output end of the voltage regulator U1 is connected with one end of the capacitor C1, the linear isolation circuit, the fault judgment circuit and the follow output circuit, and the other end of the capacitor C1 is grounded.
3. The intelligent framework circuit breaker based on DSP control as claimed in claim 1, wherein the linear isolation circuit includes three linear isolation units, each linear isolation unit includes a resistor R2, an amplifier U2, a resistor R3, an optocoupler U3, an amplifier U4, and a resistor R4, the non-inverting terminal of the amplifier U2 is grounded, the inverting terminal of the amplifier U2 is connected to one end of the resistor R2 and the pin 3 of the optocoupler U3, the other end of the resistor R2 is connected to the current collection module/the voltage collection module/the temperature collection module, the output terminal of the amplifier U2 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the pin 1 of the optocoupler U3, the pin 2 of the optocoupler U3 is connected to the voltage supply module, the pin 4 of the optocoupler U3 is grounded, the pin 5 of the optocoupler U3 is grounded, the pin 6 of the optocoupler U3 is connected to the inverting terminal of the amplifier U4 and one end of the resistor R4, the non-inverting terminal of the amplifier U4 is grounded, the output terminal of the amplifier U4 is connected to the other end of the resistor R4, and the output terminal of the amplifier U4 is connected to the output signal VOUT 1/2/VOUT 3.
4. The intelligent framework breaker based on DSP control of claim 3, characterized in that the fault determination circuit comprises a diode D1, a diode D2, a diode D3, a diode D4, a diode D5, a diode D6, a resistor R5, a resistor R6, a resistor R7, or a gate U5, the negative pole of the diode D1 is connected with the output signal VOUT1, the negative pole of the diode D3 is connected with the output signal VOUT2, the negative pole of the diode D5 is connected with the output signal VOUT3, the positive pole of the diode D1 is connected with the positive pole of the diode D2, the negative pole of the diode D2 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with the first end of the input end of the gate U5, the positive pole of the diode D6 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with the input end of the gate U5, or the output end of the gate U5 follows the output end of the output circuit.
5. The intelligent framework circuit breaker based on DSP control of claim 1, wherein the follower output circuit comprises a resistor R8 and an amplifier U6, one end of the resistor R8 is connected with the fault judgment module, the other end of the resistor R8 is connected with the non-inverting end of the amplifier U6, the inverting end of the amplifier U6 is connected with the output end of the amplifier U6, and the output end of the amplifier U6 is connected with the GPIO pin of the DSP main control module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221795014.3U CN217980395U (en) | 2022-07-12 | 2022-07-12 | Intelligent framework circuit breaker based on DSP control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221795014.3U CN217980395U (en) | 2022-07-12 | 2022-07-12 | Intelligent framework circuit breaker based on DSP control |
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| CN217980395U true CN217980395U (en) | 2022-12-06 |
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| CN202221795014.3U Active CN217980395U (en) | 2022-07-12 | 2022-07-12 | Intelligent framework circuit breaker based on DSP control |
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- 2022-07-12 CN CN202221795014.3U patent/CN217980395U/en active Active
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