Power supply circuit, detection circuit and detection device for detection of electronic detonator control module

Abstract

The utility model discloses a power supply circuit, a detection circuit and a detection device for electronic detonator control module detection, and belongs to the technical field of control module detection. The power supply circuit comprises a voltage input end connected with a power supply; a voltage output end; the voltage regulation circuit comprises a voltage regulation chip, and an FB pin and a voltage input pin are arranged on the voltage regulation chip; the voltage regulation circuit further comprises an energy storage inductor, a fly-wheel diode, a first feedback resistor, a second feedback resistor, a third feedback resistor and a first capacitor, the fly-wheel diode and the energy storage inductor are connected in series and connected between the voltage input pin and the voltage output end, the FB pin is connected with the voltage output end through the first feedback resistor, and the FB pin is grounded through the second feedback resistor; the FB pin is grounded through a series feedback resistor 3 and a first capacitor; and the PWM signal input end is connected between the third feedback resistor and the first capacitor through a protective resistor. The power supply circuit provided by the utility model is convenient for adjusting the output voltage.

Description

Technical Field

[0001] The utility model relates to the technical field of control module detection, in particular to a power supply circuit, a detection circuit and a detection device for detecting an electronic detonator control module. Background Art

[0002] At present, electronic detonators are widely used, and the control module is one of the core components of the electronic detonator. In the process of producing the control module, it is necessary to detect whether the various functions of the control module are normal so as to eliminate defective products. In the prior art, in order to realize the detection of various functions of the control module, a communication voltage with a fixed voltage value and a charging voltage with a fixed voltage value are respectively input into the control module to detect various functions of the control module.

[0003] However, with the increasing variety of control modules, different types of control modules often require input voltage values. For different types of control modules, it is usually necessary to adjust the hardware of the power supply circuit to adjust the fixed values ​​of the communication voltage and the charging voltage to meet the voltage value requirements of different types of control modules; when enterprises produce a variety of different types of control modules, they need to adjust the hardware of the power supply circuit, which increases the workload of adjusting the hardware of the power supply circuit and cannot quickly match the voltage to be provided. Therefore, there is an urgent need for a power supply circuit that is easy to adjust the output voltage. Summary of the invention

[0004] The purpose of the present utility model is to overcome at least one of the shortcomings of the above-mentioned prior art and to provide a power supply circuit for detecting an electronic detonator control module which is convenient for adjusting the output voltage; in addition, a detection circuit for detecting an electronic detonator control module and a detection device for detecting an electronic detonator control module are also provided.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] According to one aspect of the present application, a power supply circuit for electronic detonator control module detection is provided, which is used to be connected between a power supply and the electronic detonator control module, and includes:

[0007] A voltage input terminal, connected to the power supply, and used for inputting voltage;

[0008] A voltage output terminal, used for outputting voltage;

[0009] A voltage regulating circuit, wherein the voltage regulating circuit comprises a voltage regulating chip, wherein a voltage input pin and an FB pin are provided on the voltage regulating chip, wherein the voltage input pin is connected to the voltage input terminal; the voltage regulating circuit further comprises an energy storage inductor, a freewheeling diode, a feedback resistor 1, a feedback resistor 2, a feedback resistor 3 and a first capacitor, wherein the energy storage inductor is connected between the voltage input pin and the voltage output terminal, the freewheeling diode is connected in series with the energy storage inductor and is connected between the voltage input pin and the voltage output terminal, the FB pin is connected to the voltage output terminal through the feedback resistor 1, and the FB pin is grounded through the feedback resistor 2; the FB pin is grounded by connecting the feedback resistor 3 and the first capacitor in series;

[0010] The PWM signal input terminal is used to input a PWM signal, and the PWM signal input terminal is connected between the feedback resistor 3 and the first capacitor through a protection resistor.

[0011] The beneficial effects of the utility model are as follows: the voltage regulating circuit in the present embodiment comprises a voltage regulating chip, and the FB pin of the voltage regulating chip is grounded through a series feedback resistor three and a first capacitor, and the PWM signal input terminal is connected between the feedback resistor three and the first capacitor through a protective resistor, so that the voltage value required to be input by the electronic detonator control module to be detected can be adjusted by adjusting the PWM signal to output a corresponding voltage value, thereby meeting the requirements of the electronic detonator control module for the detection voltage, and the adjustment of the PWM signal can be achieved through software, and the voltage value of the output voltage can be adjusted without adjusting the circuit hardware, and it is convenient to quickly provide a matching voltage, thereby facilitating the use of the power supply circuit in the present embodiment to be connected between the power supply and the electronic detonator control module, and providing a charging voltage and a communication voltage to the electronic detonator control module respectively through the power supply circuit.

[0012] In addition, based on the above technical solution, the present invention may also be improved as follows and may have the following additional technical features.

[0013] According to an embodiment of the present application, the voltage value of the voltage outputted by the voltage output terminal is any value between 5V and 28V. The voltage value of the voltage outputted by the voltage output terminal in this embodiment is any value between 5V and 28V, and the output voltage can be adjusted within the range of 5V to 28V by adjusting the PWM signal, which is conducive to meeting the requirements of various electronic detonator control modules for detection voltage and improving the application range of the power supply circuit.

[0014] According to an embodiment of the present application, the voltage value of the voltage inputted by the voltage input terminal is 5V, and the feedback voltage of the FB pin is 1.229V. The voltage value of the voltage inputted by the voltage input terminal in this embodiment is 5V, which is conducive to satisfying the working voltage of the voltage regulating chip; in addition, the feedback voltage of the FB pin in this embodiment is 1.229V, which is convenient for selecting a suitable chip as the voltage regulating chip.

[0015] According to an embodiment of the present application, the model of the voltage regulating chip is TPS55340PWPR. In this embodiment, a chip with the model of TPS55340PWPR is used as the voltage regulating chip to reduce costs.

[0016] According to one embodiment of the present application, the voltage adjustment circuit further includes:

[0017] a second capacitor, the voltage input pin is grounded through the second capacitor;

[0018] a third capacitor, the voltage input pin is also grounded through the third capacitor, and the third capacitor is connected in parallel with the second capacitor;

[0019] a fourth capacitor, the voltage output end is grounded through the fourth capacitor;

[0020] A fifth capacitor, the voltage output end is also grounded through the fifth capacitor, and the fifth capacitor is connected in parallel with the fourth capacitor.

[0021] The voltage input pin in this embodiment is grounded through the second capacitor and the third capacitor arranged in parallel, so as to facilitate filtering of the input voltage; in addition, the voltage output terminal in this embodiment is grounded through the fourth capacitor and the fifth capacitor arranged in parallel, so as to facilitate filtering of the output voltage.

[0022] According to one embodiment of the present application, the power supply circuit for electronic detonator control module detection further includes:

[0023] A load resistor, the voltage output terminal is grounded through the load resistor, and the load resistor is connected in parallel with the fourth capacitor and the fifth capacitor.

[0024] In this embodiment, a load resistor is provided, and the voltage output terminal is grounded through the load resistor, so as to provide a minimum load.

[0025] According to one embodiment of the present application, the power supply circuit for electronic detonator control module detection further includes:

[0026] A voltage regulator diode, one end of which is connected between the feedback resistor 3 and the first capacitor, and the other end of which is grounded. When the voltage of the FB pin is greater than the rated voltage, the voltage regulator diode is turned on toward the ground end.

[0027] In this embodiment, a Zener diode is provided, one end of which is connected between the feedback resistor three and the first capacitor, and the other end of the Zener diode is grounded. When the circuit is operating normally, the Zener diode is not conducting. When the FB port signal error exceeds the rated voltage, the Zener diode is conducted to the ground end to avoid voltage overload.

[0028] According to another aspect of the present application, a detection circuit for detecting an electronic detonator control module is provided, comprising:

[0029] A charging circuit, wherein the charging circuit comprises the above-mentioned power supply circuit for electronic detonator control module detection, and the charging circuit is used to output a charging voltage to the electronic detonator control module.

[0030] The charging circuit in this embodiment includes the above-mentioned power supply circuit for electronic detonator control module detection. The voltage adjustment circuit in the power supply circuit includes a voltage regulating chip, and the FB pin of the voltage regulating chip is grounded through a series feedback resistor three and a first capacitor. The PWM signal input end is connected between the feedback resistor three and the first capacitor through a protective resistor, so that according to the charging voltage value required to be input by the electronic detonator control module to be detected, the corresponding charging voltage value can be output by adjusting the PWM signal to meet the requirements of the electronic detonator control module for the detection voltage, and the adjustment of the PWM signal can be achieved through software. Without adjusting the circuit hardware, the charging voltage value of the output voltage can be adjusted, and it is convenient to quickly provide a matching charging voltage.

[0031] According to one embodiment of the present application, the detection circuit for detecting the electronic detonator control module further includes:

[0032] A communication circuit, wherein the communication circuit includes the above-mentioned power supply circuit for electronic detonator control module detection, the communication circuit is used to output a communication voltage to the electronic detonator control module, and the PWM signal input to the voltage adjustment circuit in the communication circuit is the same as or different from the PWM signal input to the voltage adjustment circuit in the charging circuit.

[0033] The communication circuit in this embodiment includes the above-mentioned power supply circuit for electronic detonator control module detection, the voltage adjustment circuit in the power supply circuit includes a voltage regulating chip, and the FB pin of the voltage regulating chip is connected to ground through the series feedback resistor three and the first capacitor, and the PWM signal input end is connected between the feedback resistor three and the first capacitor through the protection resistor, so that the communication voltage value required to be input by the electronic detonator control module to be detected can be adjusted by adjusting the PWM signal to output the corresponding communication voltage value, so as to meet the requirements of the electronic detonator control module for the detection voltage, and the adjustment of the PWM signal can be achieved by software, and the charging voltage value of the output voltage can be adjusted without adjusting the circuit hardware, and it is convenient to quickly provide a matching communication voltage. Further, the detection circuit in this embodiment is provided with a communication circuit on the basis of the charging circuit, so that two detection circuits are formed by an independent charging circuit and a communication circuit, respectively providing a charging voltage and a communication voltage to the multiple electronic detonator control module.

[0034] According to another aspect of the present application, a detection device for detecting an electronic detonator control module is provided, comprising:

[0035] A single chip microcomputer, used for generating and outputting the PWM signal;

[0036] The above-mentioned detection circuit for detecting the electronic detonator control module, the PWM signal input end is connected to the IO port of the single-chip microcomputer for outputting the PWM signal;

[0037] The electronic detonator control module is connected to the voltage output terminal.

[0038] The detection device for detecting the electronic detonator control module in this embodiment includes a single-chip microcomputer and the above-mentioned detection circuit for detecting the electronic detonator control module, which is conducive to adjusting the PWM signal through the single-chip microcomputer according to the voltage value required to be input by the electronic detonator control module without adjusting the circuit hardware and related hardware equipment, so as to output the corresponding voltage value to the electronic detonator control module. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution in the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 The circuit schematic diagram is a power supply circuit for detecting an electronic detonator control module in an embodiment of the utility model.

[0041] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0042] U1, voltage regulating chip, L1, energy storage inductor, R1, feedback resistor one, R2, feedback resistor two, R3, feedback resistor three, R4, protection resistor, R5, load resistor, R6, first resistor, R7, second resistor, C1, first capacitor, C2, second capacitor, C3, third capacitor, C4, fourth capacitor, C5, fifth capacitor, C6, sixth capacitor, C7, seventh capacitor, D1, freewheeling diode, D2, voltage regulator diode. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0044] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0046] This embodiment provides a power supply circuit for electronic detonator control module detection, which is used to be connected between a power supply and an electronic detonator control module. Figure 1 As shown, it includes:

[0047] A voltage input terminal, connected to a power supply, and used for inputting voltage;

[0048] A voltage output terminal, used for outputting voltage;

[0049] The voltage regulating circuit includes a voltage regulating chip U1, on which a voltage input pin and an FB pin are provided, and the voltage input pin is connected to the voltage input end; the voltage regulating circuit also includes an energy storage inductor L1, a freewheeling diode D1, a feedback resistor 1 R1, a feedback resistor 2 R2, a feedback resistor 3 R3 and a first capacitor C1, the energy storage inductor L1 is connected between the voltage input pin and the voltage output end, the freewheeling diode D1 is connected in series with the energy storage inductor L1 and connected between the voltage input pin and the voltage output end, the FB pin is connected to the voltage output end through the feedback resistor 1 R1, and the FB pin is grounded through the feedback resistor 2 R2; the FB pin is grounded through the series connection of the feedback resistor 3 R3 and the first capacitor C1;

[0050] The PWM signal input terminal is used to input a PWM signal. The PWM signal input terminal is connected between the feedback resistor R3 and the first capacitor C1 through the protection resistor R4.

[0051] In this embodiment, if Figure 1 The voltage regulating circuit in this embodiment includes a voltage regulating chip U1, and the FB pin of the voltage regulating chip U1 is grounded through a series feedback resistor R3 and a first capacitor C1, and the PWM signal input end is connected between the feedback resistor R3 and the first capacitor C1 through a protection resistor R4, so that according to the voltage value required to be input by the electronic detonator control module to be detected, the corresponding voltage value can be output by adjusting the PWM signal to meet the requirements of the electronic detonator control module for the detection voltage, and the adjustment of the PWM signal can be achieved through software. Without adjusting the circuit hardware, the voltage value of the output voltage can be adjusted, and it is convenient to quickly provide a matching voltage. Therefore, it is convenient to use the power supply circuit in this embodiment to connect between the power supply and the electronic detonator control module, and provide the charging voltage and the communication voltage to the electronic detonator control module respectively through the power supply circuit.

[0052] In this embodiment, if Figure 1 As shown, the voltage input pin provided on the voltage regulating chip U1 is specifically the VIN pin, and the power supply voltage of the VIN pin is 5V; the voltage regulating chip U1 also includes an EN pin, a FREQ pin, an SS pin, a COMP pin, a SYNC pin, and an AGND pin. The EN pin is connected to the voltage input end to realize enable control. Specifically, when the voltage of the EN pin in this embodiment is 5V, the EN pin is enabled, and when the voltage of the EN pin is 0V, the EN pin is disabled. In addition, when the power supply circuit in this embodiment is working, the EN pin is normally open; further, the FREQ pin is grounded through the first resistor R6 to set the operating frequency of the voltage regulating chip U1; further, the SS pin is grounded through the sixth capacitor C6 to set the soft start time of the voltage regulating chip U1; further, the COMP pin is connected in series with the second resistor R7 and the seventh capacitor C7 to ground to form a regulator feedback loop; further, the SYNC pin is grounded to realize the selection of the internal clock of the voltage regulating chip U1; further, the AGND pin is grounded to realize the analog grounding and realize the paired signal with the power supply.

[0053] Furthermore, the voltage regulator chip U1 further includes a SW pin, an NC pin and a PGND pin. In this embodiment, there are two SW pins, which are connected between the energy storage inductor L1 and the freewheeling diode D1 through wires to achieve frequency switch control; further, the NC pin is grounded to prevent the pin from floating and affecting the use of the voltage regulator chip U1; there are three PGND pins, which are grounded respectively. Further, the voltage regulator chip U1 further includes a PAD pin, which is grounded.

[0054] In this embodiment, the voltage regulating chip U1 in the power supply circuit has a typical BOOST boost circuit inside, which will not be described in detail here. The following describes how to adjust the voltage in the power supply circuit. Specifically, when the power supply circuit is working, when the IO port PWM-Vout of the single-chip microcomputer is floating and no signal is output, the feedback voltage of the FB pin is 1.229V, and the output voltage Vout is determined by the voltage divider ratio of the feedback resistor R1 / R2, that is, Vout=1.229(1+R1 / R2); when the IO port PWM-Vout of the single-chip microcomputer outputs a PWM signal with a fixed frequency and an adjustable PWM signal duty cycle, the signal is filtered by R4 / C1 to obtain a stable adjustable voltage Vb at point b that changes with the duty cycle adjustment. Since the voltage at point a is fixed at 1.229V, according to Kirchhoff's current law (Vb-1.229) / R3+(Vout-1.229) / R1=1.229 / R2, it can be obtained that the voltage value of the output voltage Vout decreases as the voltage at point b increases. Since the voltage at point b can be adjusted by adjusting the duty cycle through the IO port of the microcontroller, the output voltage can be adjusted through the IO port of the microcontroller, that is, the corresponding voltage value can be output by adjusting the PWM signal.

[0055] Furthermore, the specific resistance values ​​of the feedback resistor R1, the feedback resistor R2, the feedback resistor R3, the protection resistor R4, the first resistor R6 and the second resistor R7 in this embodiment can be multiple, and the specific capacitance values ​​of the first capacitor C1, the sixth capacitor C6 and the seventh capacitor C7 in this embodiment can be multiple. Those skilled in the art can select them based on the technical content of this application, and this application will not give any examples.

[0056] An embodiment of the present application, such as Figure 1 As shown, the voltage value of the voltage outputted by the voltage output terminal is any value between 5V and 28V. In this embodiment, the voltage value of the voltage outputted by the voltage output terminal is any value between 5V and 28V, and the output voltage can be adjusted within the range of 5V to 28V by adjusting the PWM signal, which is conducive to meeting the requirements of various electronic detonator control modules for detection voltage and improving the application range of the power supply circuit.

[0057] An embodiment of the present application, such as Figure 1 As shown, the voltage value of the voltage inputted to the voltage input terminal is 5V, and the feedback voltage of the FB pin is 1.229V. The voltage value of the voltage inputted to the voltage input terminal in this embodiment is 5V, which is conducive to satisfying the working voltage of the voltage regulating chip U1; in addition, the feedback voltage of the FB pin in this embodiment is 1.229V, which is convenient for selecting a suitable chip as the voltage regulating chip U1.

[0058] An embodiment of the present application, such as Figure 1 As shown, the model of the voltage regulator chip U1 is TPS55340PWPR. In this embodiment, the chip with the model TPS55340PWPR is used as the voltage regulator chip U1, which is convenient for reducing costs. Furthermore, the voltage regulator chip U1 with the model TPS55340PWPR in this embodiment is a prior art product. The specific structure and function implementation of the voltage regulator chip U1 can refer to the prior art and will not be repeated here; in addition, the voltage regulator chip U1 in this embodiment can also be replaced by other applicable voltage adjustment chips.

[0059] An embodiment of the present application, such as Figure 1 As shown, the voltage adjustment circuit also includes:

[0060] A second capacitor C2, the voltage input pin is grounded through the second capacitor C2;

[0061] A third capacitor C3, the voltage input pin is also grounded through the third capacitor C3, and the third capacitor C3 is connected in parallel with the second capacitor C2;

[0062] A fourth capacitor C4, the voltage output end is grounded through the fourth capacitor C4;

[0063] The fifth capacitor C5, the voltage output end is also grounded through the fifth capacitor C5, and the fifth capacitor C5 is connected in parallel with the fourth capacitor C4.

[0064] In this embodiment, the voltage input pin is grounded through the second capacitor C2 and the third capacitor C3 arranged in parallel, so as to facilitate filtering the input voltage. Specifically, the second capacitor C2 and the third capacitor C3 filter the low-frequency clutter and the high-frequency clutter in the input voltage respectively; in addition, the voltage output terminal in this embodiment is grounded through the fourth capacitor C4 and the fifth capacitor C5 arranged in parallel, so as to facilitate filtering the output voltage. Specifically, the fourth capacitor C4 and the fifth capacitor C5 filter the low-frequency clutter and the high-frequency clutter in the output voltage respectively. Further, the specific capacitance values ​​of the second capacitor C2 to the fourth capacitor C4 in this embodiment can have multiple values, and those skilled in the art can select them based on the technical content of this application, and this application will not be given any examples.

[0065] An embodiment of the present application, such as Figure 1 As shown, the power supply circuit for detecting the electronic detonator control module also includes:

[0066] The load resistor R5, the voltage output terminal is grounded through the load resistor R5, and the load resistor R5 is connected in parallel with the fourth capacitor C4 and the fifth capacitor C5.

[0067] In this embodiment, a load resistor R5 is provided, and the voltage output terminal is grounded through the load resistor R5, so as to provide a minimum load. Further, the specific resistance value of the load resistor R5 in this embodiment is 91KΩ, and the load resistor R5 can also be other resistors with appropriate resistance values.

[0068] An embodiment of the present application, such as Figure 1 As shown, the power supply circuit for detecting the electronic detonator control module also includes:

[0069] The voltage regulator diode D2 has one end connected between the feedback resistor R3 and the first capacitor C1, and the other end of the voltage regulator diode D2 is grounded. When the voltage of the FB pin is greater than the rated voltage, the voltage regulator diode D2 is turned on toward the ground end.

[0070] In this embodiment, a Zener diode D2 is provided, one end of the Zener diode D2 is connected between the feedback resistor R3 and the first capacitor C1, and the other end of the Zener diode D2 is grounded. When the circuit is working normally, the Zener diode D2 is not turned on. When the FB port signal error exceeds the rated voltage, the Zener diode D2 is turned on to the ground end to avoid voltage overload.

[0071] In another aspect of the present application, a detection circuit for detecting an electronic detonator control module is provided, comprising:

[0072] The charging circuit includes the above-mentioned power supply circuit for electronic detonator control module detection, and the charging circuit is used to output a charging voltage to the electronic detonator control module.

[0073] In this embodiment, the charging circuit includes the above-mentioned power supply circuit for electronic detonator control module detection, the voltage adjustment circuit in the power supply circuit includes a voltage regulating chip U1, and the FB pin of the voltage regulating chip U1 is grounded through a series feedback resistor R3 and a first capacitor C1, and the PWM signal input end is connected between the feedback resistor R3 and the first capacitor C1 through a protection resistor R4, so that according to the charging voltage value required to be input by the electronic detonator control module to be detected, the corresponding charging voltage value can be output by adjusting the PWM signal to meet the requirements of the electronic detonator control module for the detection voltage, and the adjustment of the PWM signal can be achieved through software. Without adjusting the circuit hardware, the charging voltage value of the output voltage can be adjusted, and it is convenient to quickly provide a matching charging voltage.

[0074] In this embodiment, the voltage range of the charging voltage output by the charging circuit is 5V-28V. When testing an electronic detonator control module of one specification, the electronic detonator control module of this specification needs to input a voltage of 5V, and by adjusting the PWM signal, the charging voltage output by the charging circuit is 5V; in addition, when testing an electronic detonator control module of another specification that needs to input a voltage of 24V, the charging voltage output by the charging circuit is 24V by adjusting the PWM signal. Therefore, for electronic detonator control modules of different specifications, the PWM signal can be adjusted accordingly according to the detection voltage that the electronic detonator control module of the specification needs to input to achieve the adjustment of the charging circuit to obtain a matching charging voltage.

[0075] Furthermore, in the present embodiment, the charging voltage that can be adjusted by the power supply circuit has an adjustable range of 5V-28V, and the adjustable range of the PWM signal duty cycle of the PWM signal is 0 to 100%. Specifically, the PWM signal duty cycle of the PWM signal decreases within the range of 100% to 0, and the charging voltage output by the power supply circuit increases within the range of 5V to 28V. A PWM signal duty cycle value corresponds to a corresponding charging voltage output by the regulating power supply circuit. As the PWM signal duty cycle decreases, the charging voltage output by the voltage regulating circuit increases. In addition, the PWM signal duty cycle in the present embodiment does not include 0% and 100%.

[0076] In one embodiment of the present application, the detection circuit for detecting the electronic detonator control module further includes:

[0077] The communication circuit includes the above-mentioned power supply circuit for electronic detonator control module detection, the communication circuit is used to output a communication voltage to the electronic detonator control module, and the PWM signal input to the voltage adjustment circuit in the communication circuit is the same as or different from the PWM signal input to the voltage adjustment circuit in the charging circuit.

[0078] In this embodiment, the communication circuit includes the above-mentioned power supply circuit for electronic detonator control module detection, the voltage adjustment circuit in the power supply circuit includes a voltage regulating chip U1, and the FB pin of the voltage regulating chip U1 is connected to ground through the series feedback resistor R3 and the first capacitor C1, and the PWM signal input end is connected between the feedback resistor R3 and the first capacitor C1 through the protection resistor R4, so that according to the communication voltage value required to be input by the electronic detonator control module to be detected, the corresponding communication voltage value can be output by adjusting the PWM signal to meet the requirements of the electronic detonator control module for the detection voltage, and the adjustment of the PWM signal can be achieved through software, without adjusting the circuit hardware, the charging voltage value of the output voltage can be adjusted, and it is convenient to quickly provide a matching communication voltage. Further, the detection circuit in this embodiment is provided with a communication circuit on the basis of the charging circuit, so that two detection circuits are formed by an independent charging circuit and a communication circuit, respectively providing a charging voltage and a communication voltage to the multiple electronic detonator control module.

[0079] In this embodiment, the voltage range of the communication voltage output by the communication circuit is 5V-28V. When testing an electronic detonator control module of one specification, the electronic detonator control module of this specification needs to input a voltage of 9V. By adjusting the PWM signal, the voltage of the communication voltage output by the communication circuit is 9V; in addition, when testing an electronic detonator control module of another specification that needs to input a voltage of 15V, the voltage of the communication voltage output by the charging circuit is 15V by adjusting the PWM signal. Therefore, for electronic detonator control modules of different specifications, the PWM signal can be adjusted accordingly according to the detection voltage that the electronic detonator control module of the specification needs to input to achieve the adjustment of the communication circuit to obtain a matching communication voltage.

[0080] Furthermore, in the present embodiment, the adjustable range of the communication voltage that the power supply circuit can adjust is 5V-28V, and the adjustable range of the PWM signal duty cycle of the PWM signal is 0 to 100%. Specifically, the PWM signal duty cycle of the PWM signal decreases within the range of 100% to 0, and the communication voltage output by the power supply circuit increases within the range of 5V to 28V. A PWM signal duty cycle value corresponds to a corresponding communication voltage output by the control power supply circuit. As the PWM signal duty cycle decreases, the communication voltage output by the power supply circuit increases. In addition, the PWM signal duty cycle in the present embodiment does not include 0% and 100%.

[0081] Furthermore, before testing a batch of electronic detonator control modules, the PWM signal is adjusted accordingly according to the specifications of the batch of electronic detonator control modules and the required charging voltage and communication voltage values, so that the charging voltage output by the charging circuit is a fixed value, and the communication voltage output by the communication circuit is also a fixed value; in the process of testing the electronic detonator control modules, the charging voltage or the communication voltage is selected to be input into the electronic detonator control module and the electronic detonator module is tested; the detection circuit in this embodiment can simultaneously power and detect 20 electronic detonator control modules of the same batch.

[0082] Furthermore, the circuit structures of the communication circuit and the charging circuit in this embodiment are the same. The difference between the communication circuit and the charging circuit is that the charging circuit is used to output the charging voltage, while the communication circuit is used to output the communication voltage. The functions of the communication circuit and the charging circuit are different, and the voltages output by the communication circuit and the charging circuit can be the same or different. In addition, on the premise of realizing the functions in this embodiment, the circuit structures of the communication circuit and the charging circuit can also be set to be different.

[0083] It should be noted that in this embodiment, the charging voltage output from the charging circuit is a fixed value, and the communication voltage output from the communication circuit is also a fixed value, where the "fixed value" includes a voltage value with a certain numerical value and a voltage range value within the allowable error range. The voltage value in this embodiment has an error of 100mv, so the "fixed value" can also be regarded as a voltage range value within the allowable error range.

[0084] Furthermore, various tests performed on the electronic detonator module after inputting a suitable charging voltage or communication voltage into the electronic detonator control module can refer to the existing technology in the field and will not be described in detail here.

[0085] In another aspect of the present application, a detection device for detecting an electronic detonator control module is provided, comprising:

[0086] A single-chip microcomputer, used to generate and output PWM signals;

[0087] The above-mentioned detection circuit for detecting the electronic detonator control module, the PWM signal input end is connected to the IO port of the single-chip microcomputer for outputting the PWM signal;

[0088] The electronic detonator control module is connected to the voltage output terminal.

[0089] In this embodiment, the detection device for detecting the electronic detonator control module includes a single-chip microcomputer and the above-mentioned detection circuit for detecting the electronic detonator control module, which is conducive to adjusting the PWM signal through the single-chip microcomputer according to the voltage value required to be input to the electronic detonator control module without adjusting the circuit hardware and related hardware equipment, so as to output the corresponding voltage value to the electronic detonator control module.

[0090] Furthermore, the single chip microcomputer used to generate and output PWM signals in this embodiment is a prior art, and the single chip microcomputer can refer to the prior art in the field for generating and outputting PWM signals; further, generating and outputting PWM signals is not the focus of this application, and will not be described in detail here. In addition, the structure of the detection device is not illustrated in this embodiment.

[0091] In addition, in addition to the technical solutions disclosed in this embodiment, the adjustment chip, electronic detonator, electronic detonator initiation control module, single-chip microcomputer and their working principles in the utility model can refer to the conventional technical solutions in this technical field, and these conventional technical solutions are not the focus of the utility model, and the utility model will not be described in detail here.

[0092] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0093] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0094] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power supply circuit for electronic detonator control module detection, used to be connected between a power supply and an electronic detonator control module, characterized in that: It includes: A voltage input terminal, connected to the power supply, and used for inputting voltage; A voltage output terminal, used for outputting voltage; A voltage regulating circuit, wherein the voltage regulating circuit comprises a voltage regulating chip, wherein a voltage input pin and an FB pin are provided on the voltage regulating chip, wherein the voltage input pin is connected to the voltage input terminal; the voltage regulating circuit further comprises an energy storage inductor, a freewheeling diode, a feedback resistor 1, a feedback resistor 2, a feedback resistor 3 and a first capacitor, wherein the energy storage inductor is connected between the voltage input pin and the voltage output terminal, the freewheeling diode is connected in series with the energy storage inductor and is connected between the voltage input pin and the voltage output terminal, the FB pin is connected to the voltage output terminal through the feedback resistor 1, and the FB pin is grounded through the feedback resistor 2; the FB pin is grounded by connecting the feedback resistor 3 and the first capacitor in series; The PWM signal input terminal is used to input a PWM signal, and the PWM signal input terminal is connected between the feedback resistor 3 and the first capacitor through a protection resistor.

2. The power supply circuit for detecting the electronic detonator control module according to claim 1, characterized in that: The voltage value of the voltage outputted by the voltage output terminal is any value between 5V and 28V.

3. The power supply circuit for detecting an electronic detonator control module according to claim 1, characterized in that: The voltage value of the voltage inputted to the voltage input terminal is 5V, and the feedback voltage of the FB pin is 1.229V.

4. The power supply circuit for detecting an electronic detonator control module according to claim 1, characterized in that: The model of the voltage regulator chip is TPS55340PWPR.

5. The power supply circuit for detecting an electronic detonator control module according to any one of claims 1 to 4, characterized in that: The voltage adjustment circuit further includes: a second capacitor, the voltage input pin is grounded through the second capacitor; a third capacitor, the voltage input pin is also grounded through the third capacitor, and the third capacitor is connected in parallel with the second capacitor; a fourth capacitor, the voltage output end is grounded through the fourth capacitor; A fifth capacitor, the voltage output end is also grounded through the fifth capacitor, and the fifth capacitor is connected in parallel with the fourth capacitor.

6. The power supply circuit for detecting the electronic detonator control module according to claim 5, characterized in that: Also includes: A load resistor, the voltage output terminal is grounded through the load resistor, and the load resistor is connected in parallel with the fourth capacitor and the fifth capacitor.

7. The power supply circuit for detecting an electronic detonator control module according to any one of claims 1 to 4, characterized in that: Also includes: A voltage regulator diode, one end of which is connected between the feedback resistor 3 and the first capacitor, and the other end of which is grounded. When the voltage of the FB pin is greater than the rated voltage, the voltage regulator diode is turned on toward the ground end.

8. A detection circuit for detecting an electronic detonator control module, characterized in that: include: A charging circuit, wherein the charging circuit comprises the power supply circuit for electronic detonator control module detection as described in any one of claims 1 to 7, and the charging circuit is used to output a charging voltage to the electronic detonator control module.

9. The detection circuit for detecting the electronic detonator control module according to claim 8, characterized in that: Also includes: A communication circuit, wherein the communication circuit comprises a power supply circuit for detecting an electronic detonator control module as described in any one of claims 1 to 7, wherein the communication circuit is used to output a communication voltage to the electronic detonator control module, and a PWM signal input to the voltage adjustment circuit in the communication circuit is the same as or different from a PWM signal input to the voltage adjustment circuit in the charging circuit.

10. A detection device for detecting an electronic detonator control module, characterized in that: include: A single chip microcomputer, used for generating and outputting the PWM signal; The detection circuit for detecting the electronic detonator control module according to any one of claims 8 to 9, wherein the PWM signal input terminal is connected to an IO port of the single-chip microcomputer for outputting the PWM signal; The electronic detonator control module is connected to the voltage output terminal.

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