WO2009132573A1 - 电子雷管控制芯片 - Google Patents
电子雷管控制芯片 Download PDFInfo
- Publication number
- WO2009132573A1 WO2009132573A1 PCT/CN2009/071504 CN2009071504W WO2009132573A1 WO 2009132573 A1 WO2009132573 A1 WO 2009132573A1 CN 2009071504 W CN2009071504 W CN 2009071504W WO 2009132573 A1 WO2009132573 A1 WO 2009132573A1
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- nmos transistor
- pmos transistor
- circuit
- resistor
- drain
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
- F42D1/05—Electric circuits for blasting
Definitions
- the present invention relates to the field of pyrotechnics manufacturing technology, and in particular, to an electronic detonator control chip.
- the general electric detonator uses the extension body to realize the deferred detonation function. This design not only has poor delay precision, but also cannot be changed during the deferred period. In addition, since the extended body contains heavy metals such as deferred drugs and lead, the use of detonators can cause the dispersal of heavy metals, and the burning of deferred drugs can also cause environmental pollution.
- the main idea of the electronic detonator is to: connect the electronic detonator controller circuit board between the detonator foot line and the ignition device to isolate the direct connection between the detonator foot line and the ignition head, and to control the detonation process of the detonator.
- the core component of the electronic detonator controller circuit board that controls the detonation process is the electronic detonator control chip. Therefore, the object of the present invention is to solve the defects of the above-mentioned ordinary electric detonator, and to provide a two-wire non-polar connection, capable of two-way communication with a detonating device outside the electronic detonator, and a detonator
- the built-in identity code, the detonation process is controllable, and the electronic detonator control chip that can be programmed online during the delay is extended.
- the electronic detonator control chip provided by the invention comprises a communication interface circuit, a rectifier bridge circuit, a charging circuit, a charging control circuit, a power management circuit, a fire control circuit, a logic control circuit, a non-volatile memory, a reset circuit, Safe discharge circuit and chopper circuit.
- one end of the rectifier bridge circuit is connected to the communication interface circuit to form a set of pins to the outside of the chip; the other end of the rectifier bridge circuit leads to the charging circuit and the charging control circuit, and supplies power to the two ;
- the other end of the rectifier bridge circuit is grounded.
- one end of the charging circuit is connected to the rectifying bridge circuit, and the other end is connected to the power management circuit, and the end is also connected to the outside of the chip to form a casing leg 2.
- one end of the charging control circuit is connected to the rectifying bridge circuit, one end is grounded, one end is connected to the logic control circuit; the charging control circuit has one end connected to the safety discharge circuit, and the end is also connected to the outside of the chip to form a set Pin three.
- one end of the safety discharge circuit is connected to the logic control circuit, the other end is grounded, and the other end is connected to the pin 3 inside the control chip. This allows the blasting process of the electronic detonator to be interrupted, thereby improving the fault handling capability of the electronic detonator blasting network.
- one end of the power management circuit is connected to the pin 2 inside the control chip, and one end is grounded; the other end constitutes the power output pin 4 of the control chip, and leads to the outside of the chip.
- one end of the communication interface circuit is grounded, one end is connected to the internal one of the control chip, one end leads to the logic control circuit, and the other end is connected to the pin 4 inside the control chip.
- the existence of the communication interface circuit realizes the information interaction between the electronic detonator and the external detonating device, so that the electronic detonator can be programmed online; the external detonating device of the electronic detonator is also controlled to control the detonation process of the detonator, and the electronic detonator is detonated. The process is safer.
- one end of the reset circuit is grounded, one end is connected to the pin 4 inside the control chip, and the other end is connected to the logic control circuit.
- one end of the ignition control circuit is grounded, and the other end leads to the outside of the chip to form a sleeve foot 5, which is connected to the detonator ignition device outside the chip; the other end of the ignition control circuit leads to the logic control circuit.
- the ignition control circuit isolates the connection between the ignition head and the external detonator foot line, thereby isolating the influence of static electricity, radio frequency, stray current and the like on the safety of the ignition head, so that the electronic detonator is safer to store and use.
- the detonator Since the ignition control circuit is controlled by the logic control circuit, even if the energy storage device for the ignition head and the chip operation is charged with energy sufficient to detonate the detonator, the detonator must be detonated under the control of the external dedicated detonation device, thereby realizing The management of the detonation energy makes the detonation process safer.
- one end of the cuckoo clock circuit is connected to the pin 4 inside the control chip, and the other end leads to the logic control circuit.
- the cuckoo clock circuit makes the detonator's delay time more accurate.
- one end of the logic control circuit is connected to the cuckoo clock circuit, one end is connected to the pin 4 in the control chip, one end is grounded, one end is connected to the non-volatile memory, one end is connected to the communication interface circuit, one end is connected to the reset circuit, one end is connected to the reset circuit, one end Connect the safety discharge circuit, one end is connected to the charging control circuit, and the other end is connected to the ignition control circuit.
- the logic control circuit and the cesium clock circuit together implement the deferred function of the detonator. This avoids the presence of delayed drugs, reduces the use of heavy metals, and alleviates environmental pollution.
- one end of the non-volatile memory is connected to the pin 4 inside the control chip, one end is connected to the logic control circuit, and the other end is grounded.
- the electronic code and the serial number of the electronic detonator are stored in the non-volatile memory, thereby realizing the identity/password management of the electronic detonator.
- the steps of marking coding in the process of detonator production are avoided, and the safety of detonator production is improved.
- the charging circuit includes a resistor 1 and a diode one connected in series.
- the cathode of the diode 1 is connected to the power management circuit, and is connected to the outside of the chip to form the pin 2.
- the resistance of the resistor 1 is preferably taken to be 1 to 10 k ⁇ .
- the resistor connected in series in the charging circuit is used for limiting the charging current, preventing the impact of the charging process on the signal bus connected to the detonator, and improving the reliability of the system operation; limiting the resistance of the resistor to 1 to 10 k ⁇ , The charging current is controlled to the mA level, thereby preventing damage to the chip caused by excessive current; wherein the diode connected in series in the charging circuit can perform reverse current limiting, that is, when the external power supply is interrupted, the energy storage device The energy stored by the capacitor is reversed by the charging circuit Release to the energy, resulting in loss of energy in the energy storage device.
- the safety discharge circuit includes a resistor 2 and an NMOS transistor 1. Wherein, the source of the NMOS transistor and the substrate are grounded, the drain is connected to the third via the resistor 2, and the gate is connected to the logic control circuit.
- the resistance of the resistor 2 is preferably taken to be 1 to 10 k ⁇ . This improves the safety of the detonating capacitor in the energy storage device, that is, in the communication process and the data exchange process, both ends of the detonating capacitor are short-circuited, so that the detonating capacitor does not store energy, thereby ensuring detonation. The safety of the former electronic detonator operation.
- the detonation process is interrupted due to a failure, and the electric charge in the capacitor is discharged through the safety discharge circuit. This improves the fault handling capability of the electronic detonator.
- the ignition control circuit includes an NMOS transistor 2.
- the source of the NMOS transistor 2 is grounded to the substrate, the drain is connected to pin 5, and the gate is connected to the logic control circuit. This isolates the direct path of the ignition and detonator pins outside the chip, preventing external factors such as static electricity, RF and stray currents from affecting system safety. In addition, the controllability of the ignition process is also achieved.
- the charge control circuit includes a resistor 3, a resistor 4, a diode 2, a PMOS transistor 1, and an NMOS transistor 3.
- the source of the NMOS transistor 3 is grounded to the substrate, the gate is connected to the logic control circuit, and the drain is connected to the gate of the PMOS transistor.
- the source and the substrate of the PMOS transistor are connected to the rectifying bridge circuit, the drain thereof is connected in series to the pin 3 via the resistor 3 and the diode 2; the cathode of the diode 2 is oriented toward the pin 3; and the resistor is connected across the PMOS transistor 1 Between the substrate and the drain of the NMOS transistor 3.
- the resistance values of the resistors 3 and 4 are preferably 1 to 10 k ⁇ , and the purpose is to control the current at the milliampere level to prevent excessive current and affect the reliability of the system.
- Another embodiment of the above charging control circuit can include a resistor of five, a resistor of six, a diode of three, a PMO S tube of two, and an NMOS transistor of four.
- the source of the NMOS transistor 4 and the substrate are grounded, the gate is connected to the logic control circuit, and the drain is connected to the gate of the PMOS transistor 2.
- the source and the substrate of the PMOS transistor 2 are connected to the rectifying bridge circuit via the resistor 5.
- the drain is connected to the pin 3 via the diode 3, the cathode of the diode 3 is directed to the pin 3, and the resistor 6 is connected across the substrate of the PMOS transistor 2.
- the resistance values of the resistors 5 and 6 are preferably 1 to 10 k ⁇ , and the purpose is to control the current at the milliamp level to prevent excessive current and affect the reliability of the system.
- the rectifying bridge circuit includes a PMOS transistor three, a PMOS transistor four, and a N MOS tube five, and NMOS tube six.
- the drain of the PMOS transistor 3 and the substrate, the drain of the PMOS transistor four and the substrate are connected together, and are connected to the charging circuit and the charging control circuit together; the source and the substrate of the NMOS transistor 5, and the NMOS transistor The source of the six is connected to the substrate and grounded at the same time.
- the source of the PMOS transistor 3, the gate of the PMOS transistor 4, the drain of the NMOS transistor 5, and the gate of the NMOS transistor 6 are connected together, and a part of the pin 1 is formed outside the chip; the source of the PMOS transistor 4
- the gate of the PMOS transistor 3, the drain of the NMOS transistor 6, and the gate of the NMOS transistor 5 are connected together, and are connected to the outside of the chip to form another portion of the pin 1.
- the advantages of the above technical solution are: On the one hand, the voltage drop on the MOSFET depends on the channel turn-on threshold voltage of the MOS transistor, therefore, selecting the MOS transistor with a lower turn-on threshold voltage can reduce the rectifier bridge circuit. The voltage difference between the input terminal and the output terminal increases the effective utilization of the input energy of the rectifier bridge circuit. On the other hand, MOS transistors are integrated, allowing for serial use, reducing the dependence of the chip design on the integration process.
- the rectifying bridge circuit further includes a diode four and a diode five.
- the anodes of the diodes 4 and 5 are respectively connected to the pins 1; the cathodes of the diodes 4 and 5 are connected to each other, and are connected to the drain and the substrate of the PMOS transistor 3, and the drain and the lining of the PMOS transistor 4 bottom.
- the anodes of the two diodes are respectively connected to the sources of the two PMOS transistors, and the cathodes of the two diodes are connected to the drains and the substrates of the two PMOS transistors, using the forward diode Accelerating the setup process; on the other hand, limiting the maximum voltage drop between the source and the substrate of the PMOS transistor as a diode drop, so that the substrate voltage is low and the PMOS channel is low, reducing the flow through the PMOS The current in the forward PN junction between the source and the substrate protects the PMOS transistor from breakdown.
- the charging control circuit has one end connected to the pin 4 inside the chip, that is, connected to the power management circuit, and the power supply management circuit supplies power to the charging control circuit.
- the charging control circuit includes a PMOS transistor
- the source and substrate of the PMOS transistor five are connected to the power management circuit; the gate of the PMOS transistor five, the gate of the NMOS transistor seven, and the gate of the NMOS transistor eight are commonly connected to the logic control circuit; Pole, N The drain of the MOS transistor seven is connected to the gate of the NMOS transistor 9.
- the source of the PM0S transistor is connected to the substrate, the source of the P MOS transistor 7, and the substrate, and is connected to the rectifier bridge circuit; the gate of the PM0S transistor 6, the drain of the PMOS transistor 7, and the NMOS transistor The drain is commonly connected to one end of the resistor seven; the other end of the resistor seven is connected to the anode of the diode six, the cathode of the diode six is connected to the pin three inside the chip; the drain of the P MOS transistor six, the gate of the PMOS transistor seven Connected to the drain of the NMOS transistor 8.
- the source and the substrate of the NMOS transistor seven, the source and the substrate of the NMOS transistor eight, the source of the NMOS transistor nine, and the substrate are commonly grounded
- the first embodiment has the advantage that the high voltage charging power output from the power management circuit is controlled by the CMOS process using the low voltage signal output from the logic control circuit.
- the design of the scheme makes one MOS of each branch have a MOSFET cut-off at any moment, which avoids the leakage current of the charging control circuit in each branch and reduces the operating current of the charging control circuit.
- the scheme is connected with an NMOS transistor 9 at the drain of the PMOS transistor 7 as a charge control switch, thereby avoiding the anode of the reverse current limiting diode being in a potential floating state after the PMOS transistor 7 stops operating. It is equivalent to adding a safety control switch to the charging circuit of the energy storage device, further improving the safety of the electronic detonator.
- the charging control circuit comprises a PMOS transistor five, a PMOS transistor six, a PMOS transistor seven, an NMOS transistor seven, an NMOS transistor eight, and an NMOS transistor nine, and a resistor seven and a diode six.
- the specific connection relationship is as follows:
- the source and substrate of the PMOS transistor five are connected to the power management circuit; the gate of the PMOS transistor five, the gate of the NMOS transistor seven, and the gate of the NMOS transistor eight are commonly connected to the logic control circuit; The drain of the pole, N MOS transistor seven is connected to the gate of the NMOS transistor 9.
- the source and the substrate of the PMOS transistor 6 and the substrate of the P MOS transistor 7 and one end of the resistor 7 are commonly connected to the rectifying bridge circuit; the other end of the resistor 7 is connected to the source of the PMOS transistor 7; the gate of the PMOS transistor 6
- the drain of the PMOS transistor seven and the drain of the NMOS transistor 9 are commonly connected to the anode of the diode six; the cathode of the diode six is connected to the pin three inside the chip; the drain of the P MOS transistor six, the drain of the NMOS transistor eight, and
- the gates of the PMOS transistors seven are connected together.
- the source and the substrate of the NMOS transistor seven, the source and the substrate of the NMOS transistor eight, and the source and the substrate of the NMOS transistor are grounded together.
- the second embodiment is further improved on the basis of the first embodiment, utilizing the resistance voltage drop and current
- the proportional characteristic changes the connection mode of the resistor 7 in the first embodiment, so that the resistor 7 acts as a current limiting function, and also adjusts the gate and source of the PMOS transistor 7 as the charging control switch.
- the charging control circuit includes a PMOS transistor 5, a PMOS transistor 6, a PMOS transistor 7, an NMOS transistor 7, an NMOS transistor VIII, and an NMOS transistor IX, and a resistor VII and Diode six.
- the specific connection relationship is as follows:
- the source and substrate of the PMOS transistor five are connected to the power management circuit; the gate of the PMOS transistor five, the gate of the NMOS transistor seven, and the gate of the NMOS transistor eight are commonly connected to the logic control circuit; The drain of the NMOS transistor seven and the gate of the NMOS transistor are connected together.
- the source and the substrate of the PMOS transistor 6 and the source and the substrate of the PMOS transistor 7 are commonly connected to one end of the resistor 7; the other end of the resistor 7 is connected to the rectifier bridge circuit; the gate of the PMOS transistor 6 and the PMOS transistor 7
- the drain and the drain of the NMOS transistor 9 are commonly connected to the anode of the diode six; the cathode of the diode six is connected to the pin three inside the chip; the drain of the PMOS transistor six, the drain of the NMOS transistor eight, and the gate of the PMOS transistor seven connected.
- the source of the NMOS transistor 7 and the substrate, the source of the NMOS transistor VIII and the substrate, the source of the NMOS transistor IX, and the substrate are commonly grounded.
- the third embodiment is further improved on the basis of the first embodiment, and the current limiting resistor 7 is connected between the output of the rectifying bridge circuit and the PMOS transistor 6 and the PMOS transistor 7.
- the current limiting resistor is used to limit the current surge generated by the two MOS tube branches at the moment of turning, thereby reducing the noise of the electronic detonator network and making the whole system more stable.
- the charging control circuit includes a PMOS transistor five, a PM OS transistor six, a PMOS transistor seven, an NMOS transistor seven, an NMOS transistor eight, and an NMOS transistor nine, and a resistor seven, a resistor Eight, resistance nine, and diode six.
- the specific connection relationship is as follows:
- the source and substrate of the PMOS transistor five are connected to the power management circuit; the gate of the PMOS transistor five, the gate of the NMOS transistor seven, and the gate of the NMOS transistor eight are commonly connected to the logic control circuit; The drain of the pole, N MOS transistor seven is connected to the gate of the NMOS transistor 9. The drain of the PMOS transistor 7 and the drain of the NMOS transistor 9 are commonly connected to one end of the resistor 7; the other end of the resistor 7 is connected to the anode of the diode 6.
- the source of the OS tube 6 and the substrate, the source of the PMOS transistor 7 and the substrate are connected in common to the rectifying bridge circuit; the drain of the PM OS tube 6 is connected to one end of the resistor VIII; the other end of the resistor VIII is connected to the PMOS tube VII The gate is connected, the terminal is also connected to one end of the resistor 9; the other end of the resistor 9 is connected to the drain of the NMOS transistor 8; the gate of the PMOS transistor 6 is connected to the cathode of the diode 6 to be connected to the pin 3 inside the chip.
- the source and substrate of the NMOS transistor 7 and the source and substrate of the NMOS transistor VIII, the source of the NMOS transistor IX, and the substrate are commonly grounded.
- the fourth embodiment is further improved on the basis of the first embodiment, except that the NMOS tube 9 is used to improve the safety of the electronic detonator, since the gate of the PMOS tube 6 is connected to the anode of the capacitor in the energy storage device, The voltage between the gate and the source decreases as the capacitor voltage increases, which causes the equivalent resistance to gradually increase as the charging process progresses, eventually ending completely.
- the same uses the resistor VIII and the resistor 9 to divide the voltage.
- the dynamic control of the seven gate voltage of the PMOS transistor is realized, which is beneficial to maintain the stability of the charging current, thereby improving the network stability of the electronic detonator.
- the charging control circuit includes a PMOS transistor 5, a PMOS transistor 6, a PMOS transistor 7, an NMOS transistor 7, an NMOS transistor VIII, and an NMOS transistor IX, and a resistor VII. Resistor eight, resistor nine, and diode six. The specific connection relationship is as follows:
- the source and substrate of the PMOS transistor five are connected to the power management circuit; the gate of the PMOS transistor five, the gate of the NMOS transistor seven, and the gate of the NMOS transistor eight are commonly connected to the logic control circuit; The drain of the pole, N MOS transistor seven is connected to the gate of the NMOS transistor 9.
- the source of the PMOS transistor 6 and the substrate, the source of the P MOS transistor 7 and the substrate are commonly connected to one end of the resistor 7; the other end of the resistor 7 is connected to the rectifying bridge circuit; the drain of the PMOS transistor 6 is connected to one end of the resistor VIII
- the other end of the resistor 8 is connected to the gate of the PMOS transistor 7, and the terminal is also connected to the end of the resistor 9; the other end of the resistor 9 is connected to the drain of the NMOS transistor 8; the gate of the PMOS transistor 6 and the cathode of the diode 6 Connect to pin three together.
- the drain of the PMOS transistor seven, the drain of the NMOS transistor nine, and the anode of the diode six are connected together.
- the source and substrate of the NMOS transistor 7 and the source and substrate of the NMOS transistor VIII, the source of the NMOS transistor IX, and the substrate are commonly grounded.
- the fifth embodiment is further improved on the basis of the fourth embodiment, and the current limiting effect of the branch of the PMOS transistor 6 and the PMOS transistor 7 at the moment of state inversion is limited by the current limiting action of the current limiting resistor 7. , thereby reducing the noise of the electronic detonator network and improving the stability of the electronic detonator network.
- the charging control circuit includes a PMOS transistor 5, a PMOS transistor 6, a PMOS transistor 7, an NMOS transistor 7, an NMOS transistor VIII, and an NMOS transistor IX, and a resistor VII. Resistor eight, resistor nine, and diode six. The specific connection relationship is as follows:
- the source and substrate of the PMOS transistor five are connected to the power management circuit; the gate of the PMOS transistor five, the gate of the NMOS transistor seven, and the gate of the NMOS transistor eight are commonly connected to the logic control circuit; The drain of the pole, N MOS transistor seven is connected to the gate of the NMOS transistor 9.
- the source of the PMOS transistor 6 and the substrate, the substrate of the P MOS transistor 7 and the end of the resistor 7 are commonly connected to the rectifying bridge circuit; the other end of the resistor 7 is connected to the source of the PMOS transistor 7; the gate of the PMOS transistor 6 is The cathode of the diode 6 is commonly connected to the pin 3; the drain of the PMOS transistor 6 is connected to one end of the resistor 8; the other end of the resistor 8 is connected to the gate of the PMOS transistor 7, which is also connected to one end of the resistor 9; One end is connected to the drain of the NMOS transistor eight.
- the drain of the PMOS transistor seven, the drain of the NMOS transistor nine, and the anode of the diode six are connected together.
- the source of the NMOS transistor VII and the substrate, the source and substrate of the NMOS transistor VIII, the source of the NMOS transistor IX, and the substrate are commonly grounded.
- the sixth embodiment is further improved on the basis of the fourth embodiment, and the negative feedback action of the current limiting resistor 7 is used to further improve the stability of the charging current, thereby improving the stability of the electronic detonator network.
- the control chip further includes a pyrophoric driving circuit.
- One end of the ignition drive circuit is connected to the pin three, and one end is grounded; the ignition drive circuit is connected in series between the logic control circuit and the ignition control circuit through the remaining two ends.
- one end of the ignition drive circuit is connected to the pin three, one end is connected to the pin four, and one end is grounded; the ignition drive circuit is connected in series between the logic control circuit and the ignition control circuit through the remaining two ends.
- This improves the driving voltage of the MO S tube or the thyristor in the ignition control circuit, thereby reducing the on-resistance of the MOS transistor and the thyristor. Therefore, on the one hand, the utilization rate of the detonation energy in the energy storage device is improved; on the other hand, the discharge time of the detonation capacitor is reduced, and the ignition inter-turn precision of the electronic detonator is improved.
- the ignition driving circuit includes a PMOS transistor VIII, an NMOS transistor tens, and two resistors, respectively, a resistor ten and a resistor eleven .
- the source and the substrate of the PMOS transistor eight are connected to one end of the resistor ten, and are commonly connected to the pin three; the gate of the PM0S transistor eight, the other end of the resistor ten and the drain of the NM0S transistor ten are connected together
- the drain of P M0S transistor 8 is connected to one end of resistor XI and is commonly connected to the gate of NM0S transistor 2; the other end of resistor 11 is grounded; the source of the NM0S transistor is grounded to the substrate, and its gate
- the pole is connected to the logic control circuit.
- the resistance of the resistor ten and the resistor eleven is preferably taken to be not less than 100 kohms.
- This embodiment completes the basic functions of the ignition drive circuit.
- the PM0S tube and the NM0S tube are both turned on, so that the resistor ten, the resistor eleven and the ignition device are connected in parallel. Therefore, if the resistance values of the above two resistors are not less than 100 kohms, when the ignition driving circuit works, the same can be reduced in reducing the discharge of the detonating capacitor, and the operation of the ignition driving circuit is reduced to be stored in the detonating capacitor.
- the loss of energy the greater the resistance of the above resistor, the smaller the energy loss.
- the ignition drive circuit includes a PMOS transistor IX, a resistor twelve, and two NMOS transistors, respectively NMOS transistor XI and NMO S Tube twelve.
- the source and the substrate of the PMOS transistor 9 are connected to one end of the resistor twelve, and are commonly connected to the pin three; the other end of the resistor twelve, the gate of the PMOS transistor nine, and the drain of the NMOS transistor eleven Connected to the gate of the NMOS transistor 12; the drain of the PMOS transistor 9 is connected to the drain of the NMOS transistor 12, and is commonly connected to the gate of the NMOS transistor 2; the source and the lining of the NMOS transistor eleven The bottom, the source of the NM OS tube twelve and the substrate are grounded; the gate of the NMOS transistor eleven is connected to the logic control circuit.
- the resistance of the resistor 12 is preferably taken to be not less than 100 k ⁇ .
- the ignition drive circuit in the present embodiment is based on the first embodiment, and the resistor XI is replaced by an NMOS transistor twelve.
- the scheme utilizes the characteristics of small on-resistance of the NMOS transistor, so that the ignition control circuit is more reliable in the non-ignition state; meanwhile, the leakage current of the first embodiment is reduced by utilizing the large off-resistance of the NMOS transistor.
- the area occupied by the large resistor is much larger than the area occupied by the NMOS transistor. Therefore, the NMOS tube can also reduce the area occupied by the ignition driver circuit.
- the ignition drive circuit includes an inverter one, two PMOS transistors, and two NMOS transistors, respectively, a PMOS transistor PM OS tube eleven, NMOS tube thirteen, and NMOS tube fourteen.
- the source of the PMOS transistor ten and the substrate, the source of the PMOS transistor eleven and the substrate are connected together, and are commonly connected to the pin three; the drain of the PMOS transistor
- the gate of the PMOS transistor eleven and the drain of the NMOS transistor thirteen are connected together;
- the gate of the PM0S transistor ten, the drain of the PM0S transistor eleven and the drain of the NMOS transistor fourteen are connected together and connected together Go to the gate of NMOS transistor 2.
- the source and the substrate of the NMOS transistor thirteen, the source of the NMOS transistor 14 and the substrate are grounded; the gate of the N MOS transistor thirteen is connected to the input terminal of the inverter one, and is commonly connected to the logic control circuit The gate of the NMOS transistor 14 is connected to the output of the inverter one.
- the power input of inverter one is connected to pin four and is powered by the power management circuit; the other end of the inverter is grounded.
- This embodiment replaces the resistor 12 for the pull-up with the PM0S tube ten on the basis of the second embodiment of the ignition drive circuit that does not require power supply, so that the ignition drive circuit is in any state, In the branch composed of one PM0S tube and one NMOS tube, there is always one MOS tube in the off state, thereby avoiding the existence of leakage current in the ignition driving circuit. At the same time, this embodiment further reduces the area occupied by the integration of the ignition drive circuit.
- the ignition drive circuit further includes an NMOS transistor fifteen.
- the drain of the NMOS transistor fifteen is connected to the power input terminal of the inverter one, and is commonly connected to the pin four, and is powered by the power management circuit; the source of the NMOS transistor fifteen, the gate of the PM0S transistor ten, The drain of the PMOS transistor 11 and the drain of the NMOS transistor 14 are connected together and connected to the gate of the NMOS transistor 2; the gate of the NMOS transistor fifteen, the gate of the NMOS transistor thirteen, and the inverter one The inputs are connected together and are commonly connected to the logic control circuit; the substrate of the NMOS transistor fifteen is grounded.
- the advantage of this embodiment is that: since the driving power of the ignition driving circuit is derived from the detonating capacitance, after the detonator is fired, when the voltage of the detonating capacitor drops to the vicinity of the opening threshold voltage of the PM0 tube eleven, the PM0S tube The equivalent impedance of eleven is sharply increased, and the ⁇ PM0S tube 11 basically loses the driving effect on the ignition control circuit, so that the energy in the detonation capacitor cannot be fully released.
- the NMOS transistor fifteen can continue to ignite the ignition control circuit in this case, thereby fully releasing the ignition energy in the detonating capacitor, and further Increased utilization of energy stored in the detonation capacitor.
- the communication interface circuit further includes a data modulation module and a data demodulation module, wherein the data demodulation module is composed of two data demodulation circuits.
- Two data demodulation circuits are respectively connected to the pin one, and two data demodulation circuits are respectively connected to the logic control circuit, and two data demodulation circuits
- the circuit is internally connected to the pin 4 inside the chip, and the two data demodulation circuits are also commonly grounded.
- One end of the data modulation module is connected to the logic control circuit, one end is grounded, and the other two ends are respectively connected to the pin one.
- the above communication interface circuit has the advantages of: ⁇ two identical, independent working data demodulation circuits, and the two data demodulation circuits are respectively connected to the pin one, and respectively connected to the detonator foot line Therefore, the electronic detonator can receive the unipolar and bipolar signals output from its external detonating device. This makes the electronic detonator have better adaptability and portability for different detonation system communication requirements.
- the above data modulation module may further comprise three resistors and two NMOS transistors, namely resistor thirteen, resistor fifteen, resistor fifteen, NMOS transistor fifteen, and NMOS transistor thirteen.
- the drain and the substrate of the NMOS transistor sixteen, the drain and the substrate of the seventeenth NMOS transistor, and one end of the resistor thirteen are grounded; the gate of the NMOS transistor sixteen, the gate of the seventeenth NMOS transistor, and the resistor thirteen The other end is connected and connected to the logic control circuit; the source of the NMOS transistor 16 is connected to a part of the pin one via the resistor 14, that is, one of the detonator pins; the source of the NMOS transistor seventeen via the resistor Fifteen is connected to the other part of the pin one, that is, the other of the detonator foot lines.
- the implementation of the data modulation module described above enables the data to be transmitted to be output to the detonating network through the detonator pin in the form of a change in current consumption.
- the advantages are as follows: Since the source and the drain of the NMOS transistor 16 and the NM OS tube 17 are respectively connected to the ground line and the detonator line, the individual difference of the voltage drop due to the rectifier bridge circuit is reduced. The effect of the consistency of the changes, the change in current consumption that the electronic detonator sends back to the detonating device depends only on the voltage on the signal bus in the detonating network.
- the above data demodulation circuit may further comprise an inverter two and a resistor sixteen.
- One end of the inverter 2 is connected to the pin 4, and one end is grounded; the input end of the inverter 2 is connected to a part of the pin one, that is, one of the detonator pins, and is grounded via the resistor sixteen; the inverter two The output is connected to a logic control circuit.
- the structure of such a data demodulation circuit is extremely simple and easy to integrate.
- the pull-down effect of the resistor 16 ensures that the output of the data demodulation circuit is in a certain state when the signal bus is in any state of forward voltage, negative voltage or zero voltage, thereby avoiding the inverter 2
- the input is in an indeterminate state, and the energy stored in the energy storage module in the electronic detonator is increased, thereby improving the reliability of the electronic detonator system.
- the resistor 16 also provides a bleed path for the residual charge on the bus, which in turn increases the communication rate.
- the above data demodulation circuit may further include an inverter two and an NMOS transistor eighteen.
- One end of the inverter 2 is connected to the pin 4, one end is grounded, and the other two ends are an input end and an output end respectively.
- the source of the NM OS tube 18 and the substrate are grounded; the drain thereof is connected to the input end of the inverter 2, and is commonly connected to a part of the pin one, that is, one of the detonator leg lines;
- the gate is coupled to the output of the inverter two and is commonly coupled to the logic control circuit.
- the data demodulation circuit replaces the pull-down resistor 16 with the NMOS transistor of the negative feedback connection.
- Wo 1 uses the characteristics of the NMOS tube dynamic resistance.
- the output of the inverter 2 is high, and the NM OS tube is in the on state. Therefore, when the transmitted communication data causes the voltage on the bus to be switched from the high level to the low level, the NMOS transistor 18 can accelerate the discharge of the residual charge on the bus, thereby increasing the communication rate of the communication system.
- the inverter 2 in the above data demodulation circuit is preferably taken as a Schmitt inverter.
- the advantage is that regardless of whether the state of the signal input to the inverter is slow, that is, whether the level transition transition period is long, the output edge of the inverter is steep, and the level transition of the output is extremely short. This shortens the state transition of the subsequent processing circuit of the data demodulation circuit and reduces the power consumption of the electronic detonator.
- Schmitt inverters have good noise immunity and can improve the stability of electronic detonator receiving data.
- the logic control circuit further includes a programmable delay module, an input/output interface, a serial communication interface, a prescaler, and a central processing unit.
- a programmable delay module is connected to the pin 4, one end is grounded, one end is connected to the programmable delay module and the prescaler, and is connected to the chop circuit; the remaining end of the central processor is connected to the programmable extension through the internal bus.
- Module, input/output interface, serial communication interface, and prescaler One end of the programmable delay module is connected to the ignition control circuit, one end is connected to the pin four, one end is grounded, one end is connected to the internal bus, and the other end is connected to the central processor and the prescaler, and is connected to the cuckoo clock circuit.
- One end of the input/output interface is connected to the charging control circuit, one end is connected to the safety discharge circuit, one end is connected to the pin 4, one end is grounded, and the other end is connected to the internal bus.
- One end of the serial communication interface is connected to the communication interface circuit, and one end is connected to the pin 4, one end is grounded, one end is connected to the prescaler, and the other end is connected to the internal bus.
- One end of the prescaler is connected to the pin four, one end is grounded, one end is connected to the serial communication interface, one end is connected to the internal bus, and the other end is connected to the central processing unit, the programmable delay mode
- the blocks are connected and connected together to the cuckoo clock circuit.
- [66] 1 The introduction of the programmable delay module solves the fixed delay problem of the existing detonator products, and embodies the programmable performance of the electronic detonator, which realizes the unity of the electronic detonator control chip and the electronic detonator product type. This simplifies the process control problem in the production, circulation and use of electronic detonators, which greatly reduces the management difficulty of detonator products.
- the serial communication interface is used, and the communication interface circuit outside the logic control circuit cooperates to realize the interaction between the electronic detonator central processor and the external control device, thereby realizing the field repeatable programming performance of the electronic detonator. That is, it is possible to set the deferred time of the detonator in each hole in the blasthole by using an external detonating device and according to the specific needs of the project. This greatly simplifies the construction complexity caused by the mandatory correspondence between the detonator and the hole during the use of the detonator, and also improves the flexibility of the design of the blasting network.
- the programmable delay module described above is preferably a preset down counter.
- the central processing unit can directly write the deferred data to the internal preset counter through the internal bus, thereby reducing the temporary storage in the central processing unit.
- the number of registers for data is required.
- the counter can be preset down, when the count value of the down counter is reduced to zero, it means that the deferred arrival arrives, so the data written to the counter can be directly sent by the write deferred inter-turn instruction. Deferred daytime data without any changes.
- the data in the write-up counter needs to be calculated according to the deferred data sent from the write-deferred inter-turn instruction: According to the count value of the counter is added to all 1 ⁇ , indicating the principle of deferred arrival, subtracting the count value from all 1 to the deferred inter-day data sent in the deferred inter-turn instruction, and obtaining the data written to the counter.
- the use of down counters makes the design simpler.
- the present invention also provides a control flow of the above electronic detonator control chip, comprising the following steps:
- the programmable delay module is initialized, that is, the central processor sends a control signal to the programmable delay module, so that the programmable delay module outputs a signal, so that the ignition control circuit is disconnected, and the ignition state is prohibited.
- the central processor reads the electronic detonator identity code stored in the non-volatile memory.
- the third step is to initialize the prescaler, that is, the central processor writes the preset clock to the prescaler The number of clocks in the road to control the communication baud rate and the phase of the serial communication interface.
- the central processing unit waits for an instruction from a device external to the electronic detonator:
- the fifth step is continued; if the ignition command is received, the sixth step is continued.
- the fifth step is to perform the postponement process. Then return to the fourth step.
- Step 6. Perform the ignition process. Then end this control process.
- Step one the central processor determines whether to set the deferred time for the detonator according to the identity code of the detonator in the write deferred inter-turn instruction:
- step 2 If the extension is set for the detonator, proceed to step 2; if the extension is not set for the detonator, the end of the write delay period is ended.
- Step 2 the central processor writes the deferred inter-day data in the deferred inter-turn instruction to the programmable deferred module.
- Step 3 The electronic detonator sends a write deferral completion signal to its external device; and then ends the write delay process.
- Step A the central processor sends a control signal to the programmable delay module to start the programmable delay module.
- Step B the central processor waits for the extension to arrive:
- step C If the deferred time is reached, proceed to step C; if not, continue to wait.
- Step C the programmable delay module outputs a signal to the ignition control circuit, so that the ignition control circuit is closed and is in an ignition state. End this ignition process.
- FIG. 1 is a logic block diagram of an electronic detonator control chip constructed by the present invention
- FIG. 2 is an embodiment of a charging circuit in a chip according to the present invention
- FIG. 5 is an embodiment of the charging control circuit in the chip of the present invention without power supply
- 6 is another embodiment of the charging control circuit in the chip of the present invention without power supply; 7 is an implementation manner of a rectifier bridge circuit in the chip of the present invention;
- FIG. 9 is a logic block diagram of a power supply control chip of the charging control circuit of the present invention.
- FIG. 10 is a first embodiment of a power supply control circuit in the chip according to the present invention.
- FIG. 11 is a second embodiment of a power supply control circuit in the chip of the present invention.
- FIG. 13 is a fourth embodiment of a power supply control circuit in the chip according to the present invention.
- 15 is a sixth embodiment of a power supply control circuit in the chip according to the present invention.
- FIG. 16 is a logic block diagram of a control chip in which the ignition drive circuit does not need to be powered
- FIG. 17 is a logic block diagram of a power supply control chip in a fire drive circuit of the present invention.
- FIG. 21 is another embodiment of the present invention for supplying power to the ignition drive circuit
- 22 is a logic block diagram showing the configuration of a logic control circuit in the chip of the present invention.
- Figure 23 is a control flow chart of the chip of the present invention.
- 24 is a flow chart of a process of writing a deferred period in a chip according to the present invention.
- Figure 25 is a flow chart showing the ignition process in the chip of the present invention.
- 26 is a logic block diagram showing the configuration of a communication interface circuit in the chip of the present invention.
- 27 is an embodiment of a data modulation module in a chip according to the present invention.
- Figure 30 is a schematic illustration of an electronic detonator detonating network constructed of electronic detonators including the chip of the present invention.
- FIG. 1 is a logic block diagram of an electronic detonator control chip 100 constructed in accordance with the present invention.
- the electronic detonator control chip 100 of the present invention comprises: a communication interface circuit 101.
- the specific connection relationship and working principle are described as follows:
- the rectifying bridge circuit 102 one end of which is connected to the communication interface circuit 101, and together constitutes a pin 1 leading to the outside of the chip 100.
- the pin 1 is connected to the detonator pin 201 outside the chip 100, and the external detonating device 400 is connected to the detonator pin 201 via the signal bus 300, and then the energy is input to the chip 100 through the detonator pin 201; the external detonating device The 400 also communicates with the chip 100 via the signal bus 300 and the detonator pin 201. See the network diagram 30 of the electronic detonator.
- the other end of the rectifying bridge circuit 102 leads to the charging circuit 103 and the charging control circuit 110 to supply power to both.
- the remaining one end of the rectifier bridge circuit 102 is grounded 109.
- the rectifying bridge circuit 102 is used to realize the two-wire non-polar connection of the electronic detonator 200, thereby facilitating blasting construction.
- the charging circuit 103 has one end connected to the rectifying bridge circuit 102 and the other end connected to the power management circuit 104. The end also leads to the outside of the chip 100 to form a pin 2, which is connected to the outside of the chip 100.
- the energy storage device 203 is as shown in FIG.
- the energy storage device 203 is embodied as two or more capacitors. Among them, the capacitor for the normal operation of the chip 100 can be called a digital storage capacitor, and the capacitor for igniting the ignition device 204 can be called a detonation capacitor.
- the pin 2 is used by the chip 100 to charge the digital storage capacitor in the energy storage device 203; and when the external energy input via the signal bus 300 and the detonator pin 201 is suspended, the digital storage capacitor is used.
- the stored energy will also enter the chip 100 through the pin 2 and be connected to the power management circuit 104 to ensure normal operation of the digital circuit inside the chip 100 within a certain time interval.
- the charging control circuit 110 has one end connected to the rectifying bridge circuit 102, one end grounded 109, one end connected to the logic control circuit 106; the charging control circuit 110 has one end connected to the safety discharge circuit 108, the end also It leads to the outside of the chip 100 to form a pin 3 which is connected to an energy storage device 203 outside the chip 100.
- the pin 3 is used by the chip 100 to charge the detonating capacitor in the energy storage device 203; and, when it is necessary to suspend the detonation, the energy stored in the detonating capacitor will also enter the chip 100 through the pin 3, and via the security
- the discharge circuit 108 effects the release of energy to return the electronic detonator to a safe state.
- the safety discharge circuit 108 has one end connected to the logic control circuit 106 and the other end grounded 109, and the other end connected to the pin 3 inside the chip 100 and further connected to the energy storage device 203.
- the safety discharge circuit 108 is configured to perform the release of the energy stored in the detonating capacitor under the control of the logic control circuit 106.
- the power management circuit 104 has one end connected from the inside of the chip 100 to the pin 2, the other end being grounded 109, and the other end forming the power output pin 4 of the chip 100, leading to the outside of the chip 100.
- the pin 4 leading to the outside of the chip 100 can be grounded via a capacitor 109 to form a decoupling circuit for filtering the noise of the working power caused by the operation of the chip 100. , thereby improving the delay accuracy of the electronic detonator 200.
- the communication interface circuit 101 has one end grounded 109, one end connected from the inside of the chip 100 to the pin 1, and then connected to the detonator pin 201 and the signal bus 300 outside the chip 100, as shown in FIG. 1 and FIG. .
- the communication interface circuit 101 also has one end leading to the logic control circuit 106, and the other end is connected from the inside of the chip 100 to the pin 4.
- the communication interface circuit 101 is used to complete communication between the electronic detonator 200 and the external detonating device 400.
- the reset circuit 111 has one end grounded 109, one end of which is connected to the pin 4 inside the chip 100, and the other end is connected to the logic control circuit 106.
- the reset circuit 111 is used to provide an initial state for the chip 100 to avoid logic clutter inside the chip 100.
- the ignition control circuit 105 has one end grounded 109, the other end leads to the outside of the chip 100 to form a pin 5, and the other end leads to the logic control circuit 106.
- the pin 5 of the chip 100 is connected to the ignition device 204 outside the chip 100, and the other end of the ignition device 204 is connected to the positive electrode of the detonating capacitor in the above-mentioned energy storage device 203, as shown in FIG.
- the ignition control circuit 105 under the control of the logic control circuit 106, causes the ignition device 204 to be grounded via the pin 5 connected to the ignition control circuit 105, thereby forming an ignition circuit, and the stored energy in the initiating capacitor will pass through the ignition device 204. Quick release, complete detonator detonation.
- the cuckoo clock circuit 202 has one end connected to the pin 4 and the other end leading to the logic control circuit 106 for providing the chopping clock signal to the logic control circuit 106.
- the logic control circuit 106 has one end connected to the cuckoo clock circuit 202, one end connected from the chip 100 to the pin 4, one end grounded 109, one end connected to the non-volatile memory 107, and one end connected to the communication interface circuit 101. One end is connected to the charging control circuit 110, one end is connected to the reset circuit 111, one end is connected to the safety discharge circuit 108 , and the other end is connected to the ignition control circuit 105, as shown in FIG.
- a non-volatile memory 107 having one end connected to the pin 4, one end connected to the logic control circuit 106, and the other end being grounded 109.
- the charging circuit 103 includes a resistor 301 and a diode 401 connected in series, and the cathode of the diode 401 is connected to the power management circuit 104 and is externally connected to the chip 100. Pin 2.
- the resistance of the resistor 301 is preferably taken to be 1 to 10 k ⁇ .
- the safety discharge circuit 108 includes a resistor 302 and an NMOS transistor 801.
- the source of the NMOS transistor 801 and the substrate ground 109 are connected to the drain via a resistor 302.
- the gate of NMOS transistor 801 is coupled to logic control circuit 106.
- the resistance of the resistor 302 is preferably taken to be 1 to 10 k ⁇ .
- the ignition control circuit 105 includes an NMOS transistor 80.
- the source and substrate ground 109 of the NMOS transistor 802, the drain connection pin 5, and the gate are connected to the logic control circuit 106.
- the charge control circuit 110 includes a resistor 303, a resistor 304, a diode 402, a PMOS transistor 701, and an NMOS transistor 803.
- the source of the NMOS transistor 803 and the substrate are grounded 109, the gate is connected to the logic control circuit 106, and the drain thereof is connected to the gate of the PMOS transistor 701.
- the source and substrate of the PM OS tube 701 are connected to the rectifying bridge circuit 102, the drain thereof is connected in series to the pin 3 via the resistor 303 and the diode 40 2, and the cathode of the diode 402 is directed to the pin 3.
- a resistor 304 is connected across the substrate of the PMOS transistor 719 and the drain of the NMOS transistor 803.
- the resistance of the resistor 303 and the resistor 304 is preferably taken to be 1 to 10 k ⁇ .
- another implementation of the charge control circuit 110 includes a resistor 305, a resistor 306, a diode 403, a PMOS transistor 702, and an NMOS transistor 804.
- the source of the NMOS transistor 804 and the substrate are grounded 109, the gate is connected to the logic control circuit 106, and the drain thereof is connected to the gate of the PMOS transistor 702.
- the source and substrate of PMOS transistor 702 are coupled to rectifier bridge circuit 102 via resistor 305, the drain of which is coupled to pin 3 via diode 403, and the cathode of diode 403 is toward pin 3.
- Resistor 306 is connected across the substrate of PMOS transistor 702 and the drain of NMOS transistor 804.
- the resistance of the resistor 305 and the resistor 306 is preferably taken to be 1 to 10 k ⁇ .
- the rectifying bridge circuit 102 includes a PMOS transistor 703, a PMOS transistor 704, an NMOS transistor 805, and an NMOS transistor 806.
- the drain of the PMOS transistor 703 and the substrate, the drain of the PMOS transistor 704, and the substrate are connected together, and are commonly connected to the charging circuit 103 and the charging control circuit 110; the source and the substrate of the NMOS transistor 805, The source of the NMOS transistor 806 is connected to the substrate and is also grounded 109.
- the source of the PMOS transistor 703, the gate of the PMOS transistor 704, and the NMOS transistor 805 The drain is connected to the gate of the NMOS transistor 806 and leads to a portion of the pin 1 outside the chip 100; the source of the PMOS transistor 704, the gate of the PMOS transistor 703, the drain of the NMOS transistor 806, and The gates of the NMOS transistors 805 are connected together and lead to the other portion of the chip 100 to form another portion of the pin 1.
- the rectifier bridge circuit 102 may further include a diode 404 and a diode 405, as shown in FIG.
- the anodes of the diode 404 and the diode 405 are respectively connected to the pin 1; the cathodes of the diode 404 and the diode 405 are connected to each other, and are connected to the drain and the substrate of the PMOS transistor 703, and the drain and the lining of the PMOS transistor 704. bottom.
- one end of the charge control circuit 1101 is connected to the pin 4 inside the chip 100, that is, to the power management circuit 104, and is supplied by the power management circuit 104.
- the charging control circuit 1101 supplies power.
- the charging control circuit 1101 includes a PMOS transistor 705, a PMOS transistor 706, a PMOS transistor 707, an NMOS transistor 807, an NMOS transistor 808, and an NMOS transistor. Tube 809, and resistor 307 and diode 406.
- the specific connection relationship is as follows:
- the source and substrate of the PMOS transistor 705 are connected to the power management circuit 104; the gate of the PMOS transistor 705, the gate of the NM OS transistor 807, and the gate of the NMOS transistor 808 are commonly connected to the logic control circuit 106; The drain of 705, the drain of NMOS transistor 807, and the gate of NMOS transistor 809 are connected together.
- the source of the PMOS transistor 706 is connected to the substrate, the source of the PMOS transistor 707, and the substrate, and is commonly connected to the rectifier bridge circuit 102; the gate of the PMOS transistor 706, the drain of the PMOS transistor 707, and the NMOS transistor 809.
- the drain is connected in common to one end of the resistor 307; the other end of the resistor 307 is connected to the anode of the diode 406, the cathode of the diode 406 is connected to the pin 3 inside the chip 100; the drain of the PMOS transistor 706, the gate of the PMOS transistor 707 Connected to the drain of the NMO S tube 808.
- the source of the NMOS transistor 807 and the substrate, the source and the substrate of the NMOS transistor 808, the source of the NMOS transistor 809, and the substrate are commonly grounded 109.
- the charging control circuit 1101 includes a PMOS transistor 705, a PMOS transistor 706, a PMOS transistor 707, an NMOS transistor 807, an NMOS transistor 808, and an NMOS transistor 809, and a resistor 307 and a diode 406.
- the specific connection relationship is as follows:
- the source and substrate of the PMOS transistor 705 are connected to the power management circuit 106; the gate of the PMOS transistor 705, the gate of the NM OS transistor 807, and the gate of the NMOS transistor 808 are commonly connected to the logic control circuit 106; The drain of 705, the drain of NMOS transistor 807, and the gate of NMOS transistor 809 are connected together.
- the source and the substrate of the PMOS transistor 706, the substrate of the PMOS transistor 707 and one end of the resistor 307 are commonly connected to the rectifying bridge circuit 102; the other end of the resistor 307 is connected to the source of the PMOS transistor 707; the gate of the PMOS transistor 706, The drain of the PMOS transistor 707 and the drain of the NMOS transistor 809 are commonly connected to the anode of the diode 406; the cathode of the diode 406 is connected to the pin 3 inside the chip 100; the drain of the PMOS transistor 706, the drain of the NMOS transistor 808, and The gates of the PMOS transistors 707 are connected together.
- the source of the NMOS transistor 807 and the substrate, the source and the substrate of the NMOS transistor 808, the source of the NMOS transistor 809, and the substrate are commonly grounded 109.
- the charging control circuit 1101 includes a PMOS transistor 705, a PMOS transistor 706, a PMOS transistor 707, an NMOS transistor 807, and an NMOS transistor 808. And NMOS transistor 809, and resistor 307 and diode 406.
- the specific connection relationship is as follows:
- the source and the substrate of the PMOS transistor 705 are connected to the power management circuit 104; the gate of the PMOS transistor 705, the gate of the NM OS transistor 807, and the gate of the NMOS transistor 808 are commonly connected to the logic control circuit 106; The drain of 705, the drain of NMOS transistor 807, and the gate of NMOS transistor 809 are connected together.
- the source of the PMOS transistor 706 and the substrate, the source of the PMOS transistor 707 and the substrate are commonly connected to one end of the resistor 307; the other end of the resistor 307 is connected to the rectifier bridge circuit 102; the gate of the PMOS transistor 706, the PMOS transistor 707
- the drain and the drain of the NM OS transistor 809 are commonly connected to the anode of the diode 406; the cathode of the diode 406 is connected to the pin 3 inside the chip 100; the drain of the PMOS transistor 706, the drain of the NMOS transistor 808, and the PMOS transistor 707
- the gates are connected together.
- the source and substrate of the NMOS transistor 807, the source and substrate of the NMOS transistor 808, the source of the NMOS transistor 80 9 and the substrate are commonly grounded 109.
- PMOS tube 707 is used to control the charging process. Further, in the state of charge, that is, the PMOS transistor 707 is turned on and the NMOS transistor 809 is turned off, the PMOS transistor 706 is pulled up to be turned off. [144] 2. In the non-charging state, that is, the PMOS transistor 707 is turned off and the NMOS transistor 809 is turned on, the NMOS transistor 809 ensures that the output of the charging control circuit 1101 is in a certain low state, thereby ensuring the non-charging state. The safety of the lower electronic detonator 200; on the other hand, the PMOS tube 706 is provided with a pull-down drive.
- Resistor 307 is used to limit the amount of charge current stored in the energy storage device 203, thereby avoiding the impact of charging on the electronic detonator network due to excessive current.
- the diode 406 is used to limit the reverse discharge of the energy storage device 203 through the charge control circuit 1101, thereby improving the energy utilization efficiency of the energy storage device 203.
- PMOS transistor 705 and NMOS transistor 807 form an inverter.
- the power supply voltage of the inverter and the operating voltage of the logic control circuit 106 are both derived from the output of the power management circuit 104, so that a pair of control signals of the same amplitude and opposite phase are obtained through the inverter, respectively controlling the NMOS transistor.
- the 808 and the NMOS transistor 8 09 are placed in different on or off states, thereby controlling the PMOS transistor 706 and the PMOS transistor 707 to be in different off or on states respectively, which achieves control with a lower control voltage. The technical effect of high charging voltage.
- the charging control circuit 101 includes a PMOS transistor 705, a PMOS transistor 706, a PMOS transistor 707, an NMOS transistor 807, an NMOS transistor 808, and an NMOS transistor. Tube 809, and resistor 307, resistor 308, resistor 309, and diode 406.
- the specific connection relationship is as follows:
- the source and substrate of the PMOS transistor 705 are connected to the power management circuit 104; the gate of the PMOS transistor 705, the gate of the NM OS transistor 807, and the gate of the NMOS transistor 808 are commonly connected to the logic control circuit 106; The drain of 705, the drain of NMOS transistor 807, and the gate of NMOS transistor 809 are connected together.
- the drain of the PMOS transistor 707 and the drain of the NMOS transistor 809 are commonly connected to one end of the resistor 307; the other end of the resistor 307 is connected to the anode of the diode 406.
- the source of the PMOS transistor 706 and the substrate, the source of the PMOS transistor 707 and the substrate are commonly connected to the rectifier bridge circuit 102; the drain of the PMOS transistor 706 is connected to one end of the resistor 308; the other end of the resistor 308 is connected to the PMOS transistor 707. a gate connection, the terminal is also connected to one end of the resistor 309; the other end of the resistor 309 is connected to the drain of the NMOS transistor 808; the gate of the PMOS transistor 706 is co-located with the cathode of the diode 406 in the chip 1 00 is internally connected to pin 3.
- the source and substrate of the NMOS transistor 807, the source and substrate of the NMOS transistor 808, the source of the NMOS transistor 809, and the substrate are commonly grounded 109.
- the charging control circuit 11 01 includes a PMOS transistor 705, a PMOS transistor 706, a PMOS transistor 707, an NMOS transistor 807, an NMOS transistor 808, and an NMOS transistor. Tube 809, and resistor 307, resistor 308, resistor 309, and diode 406.
- the specific connection relationship is as follows:
- the source and the substrate of the PMOS transistor 705 are connected to the power management circuit 104; the gate of the PMOS transistor 705, the gate of the NM OS transistor 807, and the gate of the NMOS transistor 808 are commonly connected to the logic control circuit 106; The drain of 705, the drain of NMOS transistor 807, and the gate of NMOS transistor 809 are connected together.
- the source of the PMOS transistor 706 and the substrate, the source of the PMOS transistor 707 and the substrate are commonly connected to one end of the resistor 307; the other end of the resistor 307 is connected to the rectifying bridge circuit 102; the drain of the PMOS transistor 706 is connected to one end of the resistor 308.
- the other end of the resistor 308 is connected to the gate of the PMOS transistor 707, which is also connected to one end of the resistor 309; the other end of the resistor 309 is connected to the drain of the NMOS transistor 808; the gate of the PMOS transistor 706 and the cathode of the diode 406 Connected together to pin 3.
- the drain of the PMOS transistor 707, the drain of the NMOS transistor 809, and the anode of the diode 406 are connected together.
- the source and substrate of the NMOS transistor 807, the source and substrate of the NMOS transistor 808, the source of the NMOS transistor 809, and the substrate are commonly grounded 109.
- the charging control circuit 101 includes a PMOS transistor 705, a PMOS transistor 706, a PMOS transistor 707, an NMOS transistor 807, an NMOS transistor 808, and an NMOS transistor. Tube 809, and resistor 307, resistor 308, resistor 309, and diode 406.
- the specific connection relationship is as follows:
- the source and substrate of the PMOS transistor 705 are connected to the power management circuit 104; the gate of the PMOS transistor 705, the gate of the NM OS transistor 807, and the gate of the NMOS transistor 808 are commonly connected to the logic control circuit 106; The drain of 705, the drain of NMOS transistor 807, and the gate of NMOS transistor 809 are connected together.
- the source of the PMOS transistor 706 and the substrate, the substrate of the PMOS transistor 707 and one end of the resistor 307 are commonly connected to the rectifying bridge circuit 102; the other end of the resistor 307 is connected to the source of the PMOS transistor 707; the gate of the PMOS transistor 706 is The cathode of diode 406 is commonly connected to pin 3; the drain of PMOS transistor 706 is connected to one end of resistor 308; the other end of resistor 308 is connected to the gate of PMOS transistor 707, which is also connected to one end of resistor 309; One end is connected to the drain of the NMOS transistor 808.
- the drain of the PMOS transistor 707, the drain of the NMOS transistor 809, and the diode 406 The anodes are connected together.
- the source and substrate of the NMOS transistor 807, the source and substrate of the NMOS transistor 808, the source of the N MOS transistor 809, and the substrate are commonly grounded 109.
- the basic principle of the embodiment shown in FIG. 13, FIG. 14, and FIG. 15 is basically the same as that of the three embodiments shown in FIG. 10, FIG. 11, and FIG. 12, and the difference is: the gate control of the PMOS transistor 706 It is derived from the voltage across the storage capacitor in the energy storage device 203. Therefore, the equivalent resistance of the PMOS transistor 706 decreases as the voltage rises. At the same time, the voltage of the PMOS transistor 707 is adjusted by a pair of voltage dividing resistors 308 and 309. Through the above manner, the equivalent resistance of the PMOS transistor 707 is dynamically adjusted during the charging process, so that the equivalent resistance is inversely proportional to the stored voltage, thereby improving the stability of the charging current.
- the control chip 100 further includes a pyrophoric driving circuit.
- the ignition driving circuit 120 is connected to the grounding electrode 109; the terminal is connected to the pin 3, and is further connected to the positive pole of the external detonating capacitor of the chip 100.
- the end of the ignition driving circuit 120 provides a high voltage driving power to the ignition driving circuit 120; the ignition driving circuit 120 passes The remaining two ends are connected in series between the logic control circuit 106 and the ignition control circuit 105, as shown in FIG. Thereby, the ignition drive circuit 120 receives the lower voltage ignition control signal output from the logic control circuit 106, and outputs the higher voltage ignition control signal to the ignition control circuit 105.
- the ignition drive circuit 1201 - the terminal ground 109; - the terminal connection pin 3, and further connected to the positive pole of the external detonation capacitor of the chip 100, the end of the ignition drive circuit 1201 provides a high voltage drive power for the ignition drive circuit 1201 One end is connected to the pin 4, and the power management circuit 104 provides the power required for the ignition drive circuit 1201 to operate; the ignition drive circuit 1201 is connected in series between the logic control circuit 106 and the ignition control circuit 105 through the remaining two ends, as shown in FIG. Thereby, the ignition drive circuit 1201 receives the lower voltage ignition control signal output from the logic control circuit 106, and outputs the higher voltage ignition control signal to the ignition control circuit 105.
- the ignition drive circuit 120 includes a PMOS transistor 708, an NMOS transistor 810, and two resistors. , which are resistor 310 and resistor 311, respectively.
- the source and the substrate of the PMOS transistor 708 are connected to one end of the resistor 310 and are commonly connected to the pin 3; the gate of the PMOS transistor 708 and the other end of the resistor 310 are connected to the drain of the NMOS transistor 810.
- the drain of the PMOS transistor 708 is connected to one end of the resistor 311 and is commonly connected to the gate of the NMOS transistor 802; the other end of the resistor 311 is grounded 109; the source of the NMOS transistor 810 and the substrate ground 109, the gate thereof Connected to logic control circuit 106.
- Excellent resistance of resistor 310 and resistor 311 choose to be no less than 100 kohms.
- the operation of the embodiment of the ignition drive circuit 120 shown in FIG. 18 can be described as follows: When the logic of the NMOS transistor 810 is added with a logic high level signal of a lower voltage output by the logic control circuit 106, the NMOS transistor 810 is turned on so that the gate level of PMOS transistor 708 is pulled low, thereby turning PMOS transistor 708 on. Since the on-resistance of the PM OS tube 708 is extremely low, the voltage of the control signal output from the ignition drive circuit 120 to the ignition control circuit 105 is the same as the voltage on the pin 3.
- the ignition drive circuit 120 includes a PMOS transistor 709, a resistor 312, and two NMOS transistors. They are an NMOS transistor 811 and an NMOS transistor 812, respectively.
- the source and the substrate of the PMOS transistor 709 are connected to one end of the resistor 312 and are commonly connected to the pin 3; the other end of the resistor 312, the gate of the PMOS transistor 709, the drain of the NM OS transistor 811, and the NMOS.
- the gates of the transistors 812 are connected together; the drain of the PMOS transistor 709 is connected to the drain of the NMOS transistor 812 and is commonly connected to the gate of the NMOS transistor 802; the source and the substrate of the NMOS transistor 811, and the NMOS transistor 812 The source and substrate ground 109; the gate of the NMOS transistor 811 is coupled to the logic control circuit 106.
- the resistance of the resistor 312 is preferably taken to be not less than 100 k ⁇ .
- the logic control circuit 106 When the logic control circuit 106 outputs a high level ⁇ , the NMOS transistor 811 is turned on, and the gates of the PMOS transistor 709 and the NMOS transistor 812 are strongly pulled down by the NMOS transistor 811, so that the PMOS transistor 709 is turned on and the NMOS transistor 812 is turned off.
- the voltage of the control signal output from the ignition drive circuit 120 to the ignition control circuit 105 is the same as the voltage on the pin 3.
- the ignition drive circuit 1201 includes an inverter 181, two PMOS transistors, and two The NMOS transistors ' are a PMOS transistor 710, a PMOS transistor 711, an NMOS transistor 813, and an NMOS transistor 814, respectively.
- the source of the PM OS tube 710 is connected to the substrate, the source of the PMOS transistor 711, and the substrate, and is commonly connected to the pin 3; the drain of the PMOS transistor 710, the gate of the PMOS transistor 711, and the NMOS transistor.
- the drains of 813 are connected together; the gate of PMOS transistor 710, the drain of PMOS transistor 711, and the drain of NMOS transistor 814 are connected together and are commonly connected to the gate of NMOS transistor 802.
- Source and substrate of NMOS transistor 813, NMOS tube 814 The source and substrate ground 109; the gate of the NMOS transistor 813 is coupled to the input of the inverter 181 and is commonly connected to the logic control circuit 106; the gate of the NMOS transistor 814 is coupled to the output of the inverter 181.
- the power supply input of inverter 181 is coupled to pin 4 and is powered by power management circuit 104; the other end of inverter 181 is coupled to ground 109.
- the logic control circuit 106 When the logic control circuit 106 outputs a high level ⁇ , the NMOS transistor 813 is turned on, the gate of the PMOS transistor 711 is in a low state, and the PMOS transistor 711 is turned on; meanwhile, the logic of the inverter 181 is output to the NMOS transistor 814.
- the level is low, the NMOS transistor 814 is turned off, so that the control signal input terminal of the ignition control circuit 105, the gate of the PMOS transistor 710, and the voltage on the pin 3 are the same, and the PMOS transistor 710 is in an off state.
- the ignition drive circuit 1201 As a second embodiment of the ignition drive circuit 1201 that is operable to be powered by the power supply shown in FIG. 17, as shown in FIG. 21, on the basis of the first embodiment shown in FIG. 20, the ignition drive circuit The 1201 also includes an NMOS transistor 815.
- the drain of the NMOS transistor 815 is connected to the power input terminal of the inverter 181, and is commonly connected to the pin 4, and is powered by the power management circuit 104; the source of the NMOS transistor 815, the gate of the PMOS transistor 7 10, The drain of the PMOS transistor 711 is connected to the drain of the NMOS transistor 814 and is commonly connected to the gate of the NMOS transistor 802; the gate of the NMOS transistor 815, the gate of the NMOS transistor 813, and the input terminal of the inverter 181 are connected. Together, and are commonly connected to logic control circuit 106; substrate ground 109 of NMOS transistor 815
- the ignition control circuit 105 When the logic control circuit 106 outputs a high level ⁇ , the ignition control circuit 105 is in an ignition state. At the beginning of the ignition, the voltage on the pin 3 is greater than the voltage on the pin 4, and the NMOS transistor 815 is in the off state. With the discharge of the detonation capacitor, when the voltage on the pin 3 gradually decreases to near the turn-on threshold voltage of the PMOS transistor 711, the on-resistance of the PMOS transistor 711 will become larger, and the source voltage of the NMOS transistor 815 Also falling near the turn-on threshold voltage, the NMOS transistor 815 is turned on, so that the control signal of the ignition control circuit 105 can be continued to be driven by the power management circuit 104.
- the communication interface circuit 101 of the present invention further includes a data modulation module 210 and a data demodulation module 211, wherein the data demodulation module 211 is composed of two data demodulation circuits 212, as shown in FIG. Show.
- the specific connection relationship is described as follows:
- Two data demodulation circuits 212 are respectively connected to the pin 1, and the voltage change information on the signal bus 300 is sampled via the detonator pin 201.
- Two data demodulation circuits 212 are coupled to logic control circuit 106 for transmitting information sampled from signal bus 300 to logic control circuit 106 for processing.
- the two data demodulation circuits 212 are also commonly coupled to pin 4 for receiving the operational power provided by the power management circuit 104 such that the signal level output to the logic control circuit 106 is substantially the same as the operating voltage of the logic control circuit 106.
- the two data demodulation circuits 212 are also commonly grounded 109.
- the data modulation module 210 is connected to the logic control circuit 106, one end is grounded 109, and the other two ends are respectively connected to the pin 1.
- the data modulation module 210 is configured to convert the data information expressed by the logic control circuit 106 and expressed at high and low levels into the change of the current consumption of the electronic detonator, and load the signal on the signal bus 300 through the detonator pin 201 to transmit The detonating device 400 is given.
- the data modulation module 210 may include three resistors and two NMOS transistors, which are a resistor 313, a resistor 314, a resistor 315, an NMOS transistor 816, and an NMOS transistor 817, as shown in FIG.
- the resistor 313 provides a pull-down drive for the gates of the NMOS transistor 816 and the NMOS transistor 817, and the resistor 314 and the resistor 315 are used to convert the voltage change information to the consumption current change information.
- the drain and substrate of the NMOS transistor 816, the drain and substrate of the NMOS transistor 187, and one end of the resistor 313 are grounded 109.
- the gate of the NMOS transistor 816, the gate of the NMOS transistor 817 are connected to the other end of the resistor 313, and are commonly connected to the logic control circuit 106.
- the source of the NMOS transistor 816 is connected to a portion of the pin 1 via a resistor 314, and is further connected to one of the detonator pins 201.
- the source of the NMOS transistor 817 is connected to another portion of the pin 1 via a resistor 315, thereby connecting Go to the other of the detonator foot line 2 01.
- the data modulation module 210 implements loading data to be transmitted to the detonator pin 201 in the form of a change in current consumption.
- the working principle is described as follows:
- the logic control circuit 106 When the data T is transmitted, the logic control circuit 106 outputs a high level control signal, and the gate voltages of the NMOS transistor 816 and the NMOS transistor 817 are high, and the NMOS transistor 816 and the NMOS transistor 817 are turned on. Thereafter, the current on the signal bus 300 caused by the electronic detonator is: the bus voltage divided by the sum of the resistances of the resistors 314 and 315, which is on the order of milliamps.
- the current is much larger than the normal operating current of the electronic detonator 200 of the order of microamperes [172] (2)
- the logic control circuit 106 When the data is transmitted, the logic control circuit 106 outputs the low-level control signals NMOS transistor 816 and the gate voltage of the NMOS transistor 817 is low, and the NMOS transistor 816 and the NMOS transistor 817 are turned off.
- the current on the bus 300 caused by the electronic detonator is the normal operating current of the electronic detonator 200.
- the above data demodulation circuit 212 may include an inverter 182 and a resistor 316 as shown in FIG.
- Inverter 182 is used to extract data information on signal bus 300 input to chip 100 via detonator pin 201.
- One end of the inverter 182 is connected to the pin 4, and one end is grounded 109.
- the input of inverter 182 is coupled to one of the detonator pins 201 and is grounded 109 via resistor 316.
- Resistor 316 is used to provide pull-down drive for the input of inverter 182, on the one hand avoiding the input of inverter 182 being in an indeterminate state on signal bus 300 due to an unexpected turn-off; likewise, when data on bus 300 changes ⁇ A bleed path is provided for the charge remaining on the bus 300 to increase the communication rate.
- the output of inverter 182 is coupled to logic control circuit 106.
- the above data demodulation circuit 2121 may also include an inverter 182 and an NMOS transistor 818, as shown in FIG. Inverter 182—terminal is connected to pin 4, one end is grounded to 109, and the other two ends are input and output respectively.
- the source of the NMOS transistor 818 and the substrate ground 109 provide negative feedback for the input of the inverter 182; the drain thereof is coupled to the input of the inverter 182 and is commonly connected to one of the detonator pins 201;
- the gate of NMOS transistor 818 is coupled to the output of inverter 182 and is commonly coupled to logic control circuit 106.
- NMOS transistor 818 When the voltage on bus 300 is high, the output of inverter 182 is low and NMOS transistor 818 is turned off. When the voltage on bus 300 changes from high to low, the output voltage of inverter 182 changes from low to high, and the gate voltage of NMOS transistor 818 also changes from low to high. Thereafter, the NMOS transistor 818 enters the saturation conduction region from the cut-off region via the variable resistance region, and gradually discharges the residual charge on the bus 300. When the bus 300 is turned off due to an accident, the input of the inverter 182 can be brought to a certain low state due to the presence of the N MOS transistor 818.
- the inverter 182 in the embodiment shown in FIG. 28 and FIG. 29 is preferably taken as a Schmitt inverter, so that the state transition of the signal of the input inverter is slow, that is, the level transition transition period Whether it is longer or not, the output edge of the inverter is steeper, and the level transition of the output is extremely short. This shortens the state transition of the subsequent processing circuit of the data demodulation circuit 212, and reduces the power consumption of the electronic detonator.
- Schmitt inverters have good noise immunity and can improve the stability of electronic detonator receiving data.
- the logic control circuit 106 includes a programmable delay module 281, an input/output interface 282, a serial communication interface 283, a prescaler 284, and a central processing unit 285, as shown in FIG. Show .
- the programmable delay module 281 is preferably taken as a preset down counter. The specific connection relationship is described as follows: [177] 1.
- One end of the central processing unit 285 is connected to the pin 4, and the power supply management circuit 104 provides the power required for operation; one end is grounded 109; the end is connected with the programmable delay module 281, the prescaler The 284 is connected and commonly connected to the cuckoo clock circuit 202, and the cuckoo clock circuit 202 provides the clock required for operation; the remaining end of the central processing unit 285 is connected to the programmable delay module 281, the input/output interface 282, and the string via the internal bus 286.
- the line communication interface 28 3, and the prescaler 284, the central processor 285 sets the parameters or states of the four modules through the end, and controls the working process thereof.
- the programmable delay module 281 is connected to the ignition control circuit 105, one end is connected to the pin 4, one end is grounded 109, one end is connected to the internal bus 286, and the other end is connected to the central processing unit 285 and the prescaler 284, and Connected to the cuckoo clock circuit 202 in common.
- the programmable delay module 281 is used to implement the deferred programmable performance of the electronic detonator to solve the single problem of the detonator product.
- the operational power supply of the programmable delay module 281 is provided by the power management circuit 104.
- the operational clock (i.e., the deferred clock) is provided by the cuckoo clock circuit 202, and the deferred data is written by the central processing unit 285 through the data bus in the internal bus 286. .
- the central processor 285 also controls the programmable delay module 281 via a control bus in the internal bus 286, including control of its initial state, start, stop, and the like. When the programmable delay module 281 reaches the counting period, a signal is output to the ignition control circuit 105, so that the ignition control circuit 105 is in an ignition state, thereby achieving ignition of the detonator.
- the input/output interface 282 is connected to the charging control circuit 110, one end is connected to the safety discharge circuit 108, one end is connected to the pin 4, one end is grounded 109, and the other end is connected to the internal bus 286.
- the operational power of the input/output interface 282 is provided by the power management circuit 104, and the status signals output to the charge control circuit 110 and the safety discharge circuit 108 are written by the central processor 285 through the control bus in the internal bus 286, and the charge control circuit
- the status signals input by 110 and safety discharge circuit 108 are read by central processor 285 via a control bus in internal bus 286.
- the serial communication interface 283 is connected to the communication interface circuit 101, one end is connected to the pin 4, one end is grounded 109, one end is connected to the prescaler 284, and the other end is connected to the internal bus 286.
- the serial communication interface 283 is for receiving data information transmitted by the detonating device 400 external to the electronic detonator, the operational power of which is provided by the power management circuit 104.
- the serial communication interface 283 performs data interaction with the detonating device 400 external to the electronic detonator through the communication interface circuit 101, and performs data exchange with the central processing unit 285 via the internal bus 286. [181] 5.
- the prescaler 284 is connected to the pin 4, one end is grounded 109, one end is connected to the serial communication interface 283, one end is connected to the internal bus 286, and the other end is connected to the central processing unit 285, the programmable delay module 281, and Connected to the cuckoo clock circuit 202 in common.
- the prescaler 284 provides the serial communication interface 283 with a working clock and phase for receiving/transmitting data, and controls the communication baud rate and sample phase of the serial communication interface 283.
- the operating power of the prescaler 284 is provided by the power management circuit 104, the operational clock is provided by the cuckoo clock circuit 202, and the communication baud rate setting data is written by the central processing unit 285 via the data bus in the internal bus 286. Controlled by the central processor 285 via a control bus in the internal bus 286.
- the programmable delay module 281 is preferably taken as a preset decrement counter.
- the present invention also provides a control flow of the above electronic detonator control chip 100, as shown in FIG. 23, comprising the following steps:
- the programmable delay module 281 is initialized, that is, the central processing unit 285 sends a control signal to the programmable delay module 281 through the internal bus 286, so that the programmable delay module 281 outputs a signal, so that the ignition control circuit 105 is disconnected. , is in a fire-free state.
- the central processing unit 285 reads the electronic detonator identity code stored in the non-volatile memory 107.
- the prescaler 284 is initialized, that is, the central processor 285 writes the number of clocks of the preset cuckoo clock 202 to the prescaler 284 to control the communication baud of the serial communication interface 283. Rate and sample phase.
- the central processing unit 285 waits to receive an instruction from the detonating device 400 outside the electronic detonator: if receiving the write deferral time command, proceeding to the fifth step; if receiving the ignition command, continuing the first Six steps.
- the fifth step is to perform the write-delay period. Then return to the fourth step.
- the sixth step is to perform the ignition process. Then end this control process.
- Step one the central processing unit 285 determines whether to set the deferred time for the detonator according to the identity code of the detonator in the write deferred inter-turn instruction:
- step 2 If the extension is set for the detonator, proceed to step 2; if the extension is not set for the detonator, the end of the write delay period is ended.
- Step 2 the central processing unit 285 writes the deferred inter-day data in the write deferred inter-turn instruction to the programmable extension Module 281.
- Step 3 the electronic detonator sends a write-deferred completion signal to its external device. Then end the write delay process.
- Step A the central processing unit 285 sends a control signal to the programmable delay module 281 to start the programmable delay module 281.
- Step B the central processing unit 285 waits for the deferred time: If the deferred time is reached, proceed to step C; if it does not arrive, continue to wait.
- Step C the programmable delay module 281 outputs a signal to the ignition control circuit 105, so that the ignition control circuit 105 is closed and is in an ignition state. End this ignition process.
- the electronic detonator detonation system uses the communication command to control the working state of the electronic detonator.
- the electronic detonator operates under the control of the command sent from the external detonating device 400 according to the above control flow: the central processing unit 285 inside the electronic detonator control chip 100 receives the writing delay period via the communication interface circuit 101 and the serial communication interface 283.
- the instruction that is, realizes the field programmable performance of the detonator delay; receiving the ignition command, that is, the control of the programmable delay module 281 is realized, thereby realizing the control of the electronic detonator ignition process.
- the core component of the above-mentioned electronic detonator controller circuit board for controlling the detonation process is an electronic detonator control chip, which aims to solve many defects of the common electric detonator, and provides a non-polar connection capable of achieving two-wire connection.
- the detonating device external to the electronic detonator performs two-way communication, the built-in identity code of the detonator, the controllable detonation process, and the electronic detonator control chip that can be programmed online during the delay.
- the product of the invention can be industrialized in the industry, and the product can realize the object of the invention, put into practical application, and has superior technical effects.
- the method of operation of the inventive product is safe, simple and reliable.
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CN2009801149612A CN102016491A (zh) | 2008-09-24 | 2009-04-27 | 电子雷管控制芯片 |
AU2009242842A AU2009242842B9 (en) | 2008-04-28 | 2009-04-27 | An electronic detonator control chip |
US12/913,669 US8582275B2 (en) | 2008-04-28 | 2010-10-27 | Electronic detonator control chip |
ZA2010/08500A ZA201008500B (en) | 2008-04-28 | 2010-11-26 | An electronic detonator control chip |
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CN200820111269.7 | 2008-04-28 | ||
CNU2008201112697U CN201218702Y (zh) | 2008-04-28 | 2008-04-28 | 电子雷管控制芯片 |
CNU2008201159265U CN201204552Y (zh) | 2008-06-04 | 2008-06-04 | 一种整流电桥电路 |
CN200820115926.5 | 2008-06-04 | ||
CNU200820115927XU CN201237488Y (zh) | 2008-06-04 | 2008-06-04 | 电子雷管控制芯片 |
CN200820115927.X | 2008-06-04 | ||
CN2008102113742A CN101464674B (zh) | 2008-09-24 | 2008-09-24 | 可编程电子雷管控制芯片及其控制流程 |
CN200810211374.2 | 2008-09-24 | ||
CNU2008201362781U CN201277839Y (zh) | 2008-09-24 | 2008-09-24 | 电子雷管控制芯片 |
CN200820136278.1 | 2008-09-24 | ||
CN2008101724109A CN101404521B (zh) | 2008-11-07 | 2008-11-07 | 主从式直流载波通信系统及其控制方法 |
CN200810172410.9 | 2008-11-07 |
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CN102278921A (zh) * | 2010-06-10 | 2011-12-14 | 北京北方邦杰科技发展有限公司 | 专用于电子雷管的设备的检测控制流程 |
CN108759593A (zh) * | 2018-08-22 | 2018-11-06 | 中国工程物理研究院电子工程研究所 | 一种直列式电子引信解除保险装置 |
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TWI678859B (zh) * | 2019-05-13 | 2019-12-01 | 鴻齡科技股份有限公司 | 電源裝置 |
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CN114812317A (zh) * | 2022-04-19 | 2022-07-29 | 华东光电集成器件研究所 | 一种数码雷管通信解调接口电路、信号处理系统及方法 |
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AU2009242842B9 (en) | 2014-04-17 |
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