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US 11,953,305 B2Granted
Detonator installation including a controller
AssigneeDetnet South Africa (Pty) Ltd
InventorMichiel Jacobus Kruger
Life of this patent
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Abstract
A detonator installation (10) in which a detonator fire capacitor (36) which is connected in series with an inductor (18) is charged from a low voltage source (16) by repeatedly opening and closing a switch (20) thereby to cause a collapsing magnetic field in the inductor (18) which results in a charging current flow to the capacitor (36).
Claims3
A detonator installation including control equipment, the control equipment comprising:
- a controller;
- a voltage source, an inductor and a switch connected in series with the voltage source;
- output terminals;
- and
- at least one detonator including a capacitor and at least one protective diode, the capacitor and the at least one protective diode being connected in series to the output terminals;
- wherein the controller is operable repeatedly to close the switch, thereby to direct current from the voltage source through the inductor which then establishes a magnetic field, and to open the switch so that the magnetic field collapses and generates a current which flows via the output terminals through the capacitor and the diode thereby to charge the capacitor.
3 more elements
Dependencies are inferred from the claim text.