Device for supplying power to an electronic computer
AssigneesContinental Automotive France, Continental Automotive GmbH
InventorPhilippe Boissiere
Life of this patent
Estimating the term…
Abstract
Disclosed is a device for supplying power to an electronic computer having a first connection terminal coupled to a power supply, a second connection terminal coupled to an electrical ground, a microprocessor having a microprocessor supply input coupled, firstly, to a first terminal of first capacitance of a first capacitor and, secondly, coupled to a supply output of the power supply device, the second terminal of first capacitance being coupled to the electrical ground, the power supply device has a first supply input. It has a diode coupled to the supply input, and to the supply output, and a switching device coupled in parallel with the diode.
Claims20
A power supply device (30) for supplying power to an electronic computer that includes a microprocessor and connection means (26) the connection means (26) coupled to a power supply and to an electrical ground (32), the microprocessor (22) having a microprocessor supply input (22_1) coupled to a first terminal (C3_1) of a first capacitor (C3), and a second terminal (C3_2) of the first capacitor (C3) being coupled to the electrical ground (32), the power supply device (30) comprising:
- a supply device output (30_1) coupled to the microprocessor supply input (22_1) and the first terminal (C3_1) of the first capacitor (C3);
- a supply device input (30_2) coupled to a first connection terminal (26_1) of the connection means (26) and also to a supply input (24_1) of a power module (24);
- and
- a diode (36), having an anode (36_1) coupled to the supply device input (30_2), and a cathode (36_2) coupled to the supply device output (30_1),
- wherein a switching device (38) is coupled to the anode (36_1) of the diode (36) and the cathode (36_2) of the diode (36), so as to be in parallel with the diode (36).
An electronic engine control computer for controlling an engine, comprising:
- a microprocessor (22), which includes a microprocessor supply input (22_1);
- a power module (24) adapted to control injectors of the engine;
- connection means (26) that couples to a supply of electrical energy and to an electrical ground (32);
- a first capacitor (C3) with first and second terminals, the first terminal (C3_1) of the first capacitor (C3) coupled to the microprocessor supply input (22_1), and the second terminal (C3_2) of the first capacitor (C3) being coupled to the electrical ground (32);
- and
- a power supply device (30), which includes a diode (36), a switching device (38), a supply device output (30_1) coupled to the microprocessor supply input (22_1), and a supply device input (30_2) coupled to both a first connection terminal (26_1) of the connection means (26) and also to a supply input (24_1) of the power module (24),
- the diode (36) having an anode (36_1) coupled to the supply device input (30_2), and a cathode (36_2) coupled to the supply device output (30_1), and
- the switching device (38) being coupled to the anode (36_1) and the cathode (36_2) of the diode (36) so as to be in parallel with the diode (36).
Dependencies are inferred from the claim text.