CN218301225U - Power panel card device for online monitoring system - Google Patents
Power panel card device for online monitoring system Download PDFInfo
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- CN218301225U CN218301225U CN202222317529.9U CN202222317529U CN218301225U CN 218301225 U CN218301225 U CN 218301225U CN 202222317529 U CN202222317529 U CN 202222317529U CN 218301225 U CN218301225 U CN 218301225U
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Abstract
The utility model belongs to the technical field of the power integrated circuit board, a power supply board clamps the device for on-line monitoring system is provided, the power supply mouth with prevent reverse connection circuit connection, prevent reverse connection circuit and EMI circuit connection, EMI circuit and power-off protection circuit connection, power-off protection circuit and isolation step-down circuit connection, isolation step-down circuit and voltage output control circuit connection, voltage output control circuit respectively with first voltage output, second voltage output, voltage control circuit connection, first voltage output and second voltage output are connected with consumer; the voltage control circuit is connected with the dial switch through a built-in voltage control IC. The utility model discloses a power strip clamps and puts and compare with traditional knob formula voltage output control power module, and this kind of design is the more convenient accurate operation, and the voltage value output is more stable simultaneously.
Description
Technical Field
The utility model relates to a power strip clamps puts for on-line monitoring system belongs to power strip technical field.
Background
The power module is an indispensable part of electronic products, and most external power supplies cannot be directly used by the electronic products, and need to be subjected to voltage reduction, filtering and other processes to be converted into power required by the power module.
The existing power module does not have the functions of reverse connection protection and power supply interruption protection, and hidden dangers can exist. When the positive electrode and the negative electrode of a power supply of the electronic product are reversely connected, the electronic product can be damaged; when the external power supply is interrupted for a short time, the power supply of the electric equipment cannot be continuous; meanwhile, when the power supply system is integrated with the functional parts, such as when a problem occurs in part, it is not advantageous to find the problem and repair the equipment. In the vehicle-mounted monitoring equipment, because the power supply condition on the vehicle is worse than the ground power supply condition and the user of the equipment is not fixed, at the moment, the protection of power interruption and misoperation is very important, and because the power supply voltages required by different electric equipment are different, different types of power supply modules need to be developed for the equipment with different voltage requirements, and when the power supply modules with wide voltage output range exist, the development cost can be reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a current power strip outside the power supply reversal connect the input power strip cause the problem that the power strip burns out, avoid under the improper condition of operation, economy, time, the manpower loss that causes. Meanwhile, the risks of abnormal restart and stop of the power utilization system under the condition that the input power supply is interrupted for a short time are avoided. Meanwhile, the power panel adopts a pluggable design, when the power panel has a fault, only the power panel needs to be replaced without replacing the whole system, and the maintenance cost is reduced; the power supply module can provide voltage input for equipment with various voltage power supply requirements, and compatibility of the power supply board is improved. The utility model discloses to the problem that above-mentioned exists, a power strip to different voltage demands and reduction maintenance is proposed.
The technical scheme of the utility model:
a power panel card device for an online monitoring system, the power panel card device 10 comprises a power supply port 101, an anti-reverse connection circuit 102, an EMI circuit 103, a power failure protection circuit 104, an isolation step-down circuit 105, a voltage output control circuit 106, a first voltage output 107, a second voltage output 108 and a dial switch 110;
the power supply port 101 is connected with the reverse connection preventing circuit 102, the reverse connection preventing circuit 102 is connected with the EMI circuit 103, the EMI circuit 103 is connected with the power-off protection circuit 104, the power-off protection circuit 104 is connected with the isolation voltage-reducing circuit 105, the isolation voltage-reducing circuit 105 is connected with the voltage output control circuit 106, the voltage output control circuit 106 is respectively connected with the first voltage output 107 and the second voltage output 108, and the first voltage output 107 and the second voltage output 108 are connected with the electric equipment through the power supply interface 20; the voltage output control circuit 106 is internally provided with a voltage control IC 109, and the voltage control IC 109 is connected with a dial switch 110;
the reverse connection preventing circuit 102 provides a reverse connection protection function for the power panel card device 10, and makes the power panel card device 10 not be conducted when the input positive and negative electrodes are reversely connected through the switch of the mos tube, so that the subsequent equipment does not output voltage;
the power-off protection circuit 104 provides a function of continuously supplying power to the input temporary interruption equipment for the electric equipment, and provides 30ms stable voltage output for the subsequent equipment when the power supply input end has the condition of power supply interruption by using a capacitive energy storage principle;
the isolation buck circuit 105 provides input-output isolation while completing the voltage conversion process;
the on and off of the dial switch 110 realize the input of different resistance values, the resistance values complete the voltage division through the voltages loaded at the two ends, the voltage control IC 109 arranged in the voltage output control circuit 106 reads the voltage output by the dial switch 110 and controls the voltage output value of the power panel card device 10 according to the read voltage value, thereby realizing the difference of the output voltage values; and any voltage output within the highest voltage to the lowest voltage is realized by matching different resistance values.
The utility model has the advantages that: the utility model discloses the switching characteristic who has utilized the mos pipe has increased at the input of power and has prevented reverse-connection protection circuit, make power strip clamp device 10 only just can be for the power supply of back level equipment under the correct voltage input, the energy storage characteristic who utilizes electric capacity has increased the outage protection circuit, still can normally work under the condition of the short-term interrupt of input power source emergence, entire system's reliability has been improved, simultaneously for the multiple suitable operating mode that increases power module, it carries out voltage adjustment circuit through dial switch to have increased, compare with knob formula voltage output control power module on the present market, this kind of design more makes things convenient for accurate operation, voltage value output is more stable simultaneously.
Drawings
Fig. 1 is a hardware configuration diagram of a power strip card device 10 according to the present invention.
In the figure; 101 a power supply port; 102 anti-reverse connection circuit; 103 an EMI circuit; 104 a power-off protection circuit; 105 an isolated step-down circuit; 106 voltage output control circuit; 107 a first voltage output; 108 a second voltage output; 109 a voltage control IC;110 toggle switches.
Detailed Description
The following description will further explain embodiments of the present invention with reference to the drawings and technical solutions.
As shown in fig. 1, a power panel card device for an online monitoring system, the power panel card device 10 includes a power supply port 101, an anti-reverse connection circuit 102, an EMI circuit 103, a power-off protection circuit 104, an isolation step-down circuit 105, a voltage output control circuit 106, a first voltage output 107, a second voltage output 108, a voltage control IC 109, and a dial switch 110;
the power supply port 101 is connected with an anti-reverse connection circuit 102, the anti-reverse connection circuit 102 is connected with an EMI circuit 103, the EMI circuit 103 is connected with a power-off protection circuit 104, the power-off protection circuit 104 is connected with an isolation step-down circuit 105, the isolation step-down circuit 105 is connected with a voltage output control circuit 106, the voltage output control circuit 106 is respectively connected with a first voltage output 107 and a second voltage output 108, and the first voltage output 107 and the second voltage output 108 are connected with electric equipment through a power supply interface 20; the voltage output control circuit 106 is internally provided with a voltage control IC 109, and the voltage control IC 109 is connected with a dial switch 110;
the reverse connection preventing circuit 102 provides a reverse connection protecting function for the power panel card device 10, and enables the power panel card device 10 to be not conducted when the input positive and negative electrodes are reversely connected through a switch of the mos tube, so that no voltage is output by the rear-stage device;
the power-off protection circuit 104 provides a function of continuously supplying power to input temporary interruption equipment for the electric equipment, and provides 30ms stable voltage output for the subsequent equipment when the power supply input end has power supply interruption through a capacitive energy storage principle;
the isolation buck circuit 105 provides input-output isolation while completing the voltage conversion process;
the on and off of the dial switch 110 realizes the input of different resistance values, and the resistance values complete the voltage division through the voltages loaded at the two ends;
the voltage control IC 109 built in the voltage output control circuit 106 reads the voltage output by the dial switch 110, and controls the voltage output value of the power strip card device 10 according to the read voltage value, thereby realizing the difference of the output voltage values; and any voltage output within the highest voltage to the lowest voltage is realized by matching different resistance values.
The utility model discloses a concrete theory of operation does:
the power supply port 101 is supplied with power by a direct current voltage provided on the vehicle, and is detected by the reverse connection preventing circuit 102, if the voltage input is correct, the voltage is provided for the later-stage electric equipment, and if the voltage input is incorrect, the later-stage equipment does not have voltage output.
The voltage passing through the reverse connection prevention protection circuit 102 enters an EMI circuit 103, and electromagnetic interference in the power grid is filtered out.
The voltage is passed through the power-off protection circuit 104 to store the electrical energy.
After the electric energy storage is finished, the voltage enters the isolation voltage reduction circuit 105, and the voltage is inverted, reduced and rectified and then sent to the voltage output control circuit 106.
The voltage output control circuit outputs a voltage with a fixed value by collecting signals input by the voltage control IC 109, and outputs two paths of voltages to the electric equipment through the first voltage output 107 and the second voltage output 108.
The working principle of the anti-reverse connection circuit is as follows:
the mos tube is connected in series in the negative pole of the circuit, a bias resistor is used for providing bias voltage for the conduction and the shutdown of the mos tube, when the polarity is correct, the mos tube is normally conducted, and the subsequent equipment is normally powered; when the polarity is wrong, the mos tube cannot work normally and is in a cut-off state, and the post-stage circuit has no voltage input.
The working principle of the power-off protection circuit is as follows:
when the power strip card device 10 is powered on, the external voltage charges the capacitor in the power-off protection circuit 104, the internal electric energy is stored after being fully charged, the electric energy stored in the circuit can be stably output to the subsequent equipment under the condition that the external input voltage is temporarily interrupted, and when the power supply is recovered, the power-off protection circuit 104 can continue to complete charging.
The working principle of the voltage output control circuit is as follows:
the voltage output control circuit 106 is internally provided with an acquisition circuit for outputting signals to the voltage control IC 109, acquires the signals output by the voltage control IC 109 and then outputs a specified voltage value, and simultaneously outputs the voltage value to the voltage control IC 109 through a feedback loop so as to achieve the effect of stabilizing the voltage; the signal output value of the voltage control IC 109 depends on the voltage value of the voltage reference pin connected to the voltage control IC 109, the voltage reference pin is connected to VCC through the exclusion and dial switch 110, the other end is connected to GND through a voltage dividing resistor, the voltage value at the reference pin of the voltage control IC 109 is determined by controlling the on and off of the dial switch 110, the voltage value to be output by the power board card device 10 is determined according to the voltage value collected from the reference pin of the voltage control IC 109, and finally, output of different voltages is achieved.
Claims (1)
1. A power panel card device for an online monitoring system is characterized in that the power panel card device (10) comprises a power supply port (101), an anti-reverse connection circuit (102), an EMI circuit (103), a power-off protection circuit (104), an isolation voltage reduction circuit (105), a voltage output control circuit (106), a first voltage output (107), a second voltage output (108), a voltage control IC (109) and a dial switch (110);
the power supply port (101) is connected with the reverse connection preventing circuit (102), the reverse connection preventing circuit (102) is connected with the EMI circuit (103), the EMI circuit (103) is connected with the power-off protection circuit (104), the power-off protection circuit (104) is connected with the isolation voltage-reducing circuit (105), the isolation voltage-reducing circuit (105) is connected with the voltage output control circuit (106), the voltage output control circuit (106) is respectively connected with the first voltage output (107) and the second voltage output (108), and the first voltage output (107) and the second voltage output (108) are connected with the electric equipment through the power supply interface (20); the voltage output control circuit (106) is internally provided with a voltage control IC (109), and the voltage control IC (109) is connected with the dial switch (110);
the reverse connection preventing circuit (102) provides a reverse connection protecting function for the power panel card device (10), and the power panel card device (10) is not conducted when the input positive electrode and the negative electrode are reversely connected through a switch of the mos tube, so that the rear-stage equipment does not have voltage output;
the power-off protection circuit (104) provides a continuous power supply function of input temporary interruption equipment for the electric equipment, and provides 30ms stable voltage output for the subsequent equipment when the power supply input end has the condition of power supply interruption by using a capacitive energy storage principle;
the isolation step-down circuit (105) provides input and output isolation while completing the voltage conversion process;
the dial switch (110) is turned on and off to realize the input of different resistance values and output different voltages, and a voltage control IC (109) built in the voltage output control circuit (106) reads the voltage output by the dial switch (110) and controls the voltage output value of the power panel card device according to the read voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222317529.9U CN218301225U (en) | 2022-09-01 | 2022-09-01 | Power panel card device for online monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222317529.9U CN218301225U (en) | 2022-09-01 | 2022-09-01 | Power panel card device for online monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218301225U true CN218301225U (en) | 2023-01-13 |
Family
ID=84811792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222317529.9U Active CN218301225U (en) | 2022-09-01 | 2022-09-01 | Power panel card device for online monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218301225U (en) |
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2022
- 2022-09-01 CN CN202222317529.9U patent/CN218301225U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Power Board Device for Online Monitoring Systems Effective date of registration: 20230830 Granted publication date: 20230113 Pledgee: Industrial Bank Limited by Share Ltd. Dalian branch Pledgor: DALIAN BAISHENGYUAN TECHNOLOGY Co.,Ltd. Registration number: Y2023210000220 |