A fast charging method for an energy storage capacitor of an electronic detonator

Abstract

The invention discloses a fast charging method for an energy storage capacitor of an electronic detonator. The method is carried out in two stages by controlling the output voltage of a bus in the electronic detonator. In the first stage, the output voltage of the bus is gradually increased from 0 volts to a safe voltage V1. Under the safety voltage V1, the electronic detonator is controlled to charge the voltage of the energy storage capacitor C1 from 0V to V1 to detect whether the electronic detonator is normal; the second stage is that the bus output voltage is gradually increased from V1 to the detonation voltage V2. The closed-loop charging control method is used to charge all the electronic detonators in the network at the same time to complete the charging of the electronic detonators. When the control host and the electronic detonators are connected to the network, the control host will quickly complete the detonation operation process after confirming the functions of all the electronic detonators in the network; During the detonation process, all the electronic detonators in the network enter the relatively dangerous detonation ready state at the same time, and the time for the detonation ready state is relatively short, which effectively reduces the occurrence of safety liability accidents.

Description

technical field [0001] The invention relates to a fast charging method for an energy storage capacitor of an electronic detonator, which belongs to the technical field of electronic detonators. Background technique [0002] At present, in the detonation process of parallel-connected electronic detonators, the control host needs to charge the energy storage capacitor in the electronic detonator through two busbars before sending out the detonation command; due to the limited output power of the boost circuit in the control host, when the electronic detonator in the network After the number of detonators exceeds a certain number, all the electronic detonators connected in parallel to the two busbars output by the initiator, that is, the control host, will charge too much current at the same time, which will easily damage the booster circuit. way of charging. There are many charge-by-shot charging processes for charging the energy storage capacitor, but there are mainly the fo...

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Problems solved by technology

[0003] The object of the present invention is to provide a fast charging method and device for an energy storage capacitor of an electronic detonator, so as to solve the problems in the above-mentioned prior art that the charging time is too long and that the electronic detonator is in a relatively dangerous high-voltage state for too long before detonation. , to overcome the deficiencies of the existing technology

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