| 摘要 |
FIELD: unified pyrotechnic device initiation systems.SUBSTANCE: instrument to undermine the unified pyrotechnic device comprises a microcontroller, power source, the keys divided into two groups, and electroexplosive network, with one group of keys is in the form of high-and low-voltage semiconductor switches, and the other group - in the form of electro-mechanical switches. Each of the electromechanical keys in this group comprises a control unit and two mechanical contact, the first terminals are connected to the inputs of the high-current semiconductor switches and the second terminal through corresponding electroexplosive network connected to the positive terminal of the power source. Outputs of all high-current semiconductor switches are united and connected to the negative terminal of the power source and the Low voltage to the output semiconductor switches whose inputs are connected to outputs of the control units of electromechanical keys whose inputs are combined and connected to the positive terminal of the power source. Microcontroller is connected to the control inputs of all the keys of the first group.EFFECT: achievable technical result is to increase the reliability of operation, as well as reducing the size and weight of the device.1 cl, 2 dwg |
