DEVICE AND METHOD FOR DETERMINING THE INTENSITY OF CURRENT
First Claim
1. A device for allowing current flowing in each branch of a multi-channel circuit to be evaluated, the device comprising:
- secondary branches in parallel with each other and which each receive a resistive component of variable resistance that varies according to a common variation law;
a main branch with a resistive component of predetermined resistance, the main branch being connected in series with the secondary branches; and
a control unit that analyzes voltages measured across terminals of the resistive components of the main branch and the secondary branches and as a function of the predetermined resistance of the resistive component of the main branch and that deduces a value of current flowing through the resistive components of the main branch and the secondary branches.
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Abstract
A device allows current flowing in each branch of a multi-channel circuit to be evaluated. The device includes secondary branches in parallel with each other and which each receive a resistive component. The device also includes a main branch with a resistive component, the main branch being connected in series with the secondary branches, and a control unit that analyzes the voltages measured across the terminals of each of the resistive components and deduces the value of the current flowing through each of the resistive components. A method for determining the intensity of electrical currents is performed using the device. The currents can be measured in several branches in a less expensive manner. The temperature of the device can also be determined.
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Citations
10 Claims
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1. A device for allowing current flowing in each branch of a multi-channel circuit to be evaluated, the device comprising:
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secondary branches in parallel with each other and which each receive a resistive component of variable resistance that varies according to a common variation law; a main branch with a resistive component of predetermined resistance, the main branch being connected in series with the secondary branches; and a control unit that analyzes voltages measured across terminals of the resistive components of the main branch and the secondary branches and as a function of the predetermined resistance of the resistive component of the main branch and that deduces a value of current flowing through the resistive components of the main branch and the secondary branches. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An architecture of a vehicle electrical system, the architecture comprising:
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a device allowing current flowing in each branch of a multi-channel circuit to be evaluated, the device including; secondary branches in parallel with each other and which each receive a resistive component of variable resistance that varies according to a common variation law; a main branch with a resistive component of predetermined resistance, the main branch being connected in series with the secondary branches; and a control unit that analyzes voltages measured across terminals of the resistive components of the main branch and the secondary branches and as a function of the predetermined resistance of the resistive component of the main branch and that deduces a value of current flowing through the resistive components of the main branch and the secondary branches. - View Dependent Claims (8)
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9. A method for determining electrical current intensity in each branch of a device, the device including:
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secondary branches in parallel with each other and which each receive a resistive component of variable resistance that varies according to a common variation law, a main branch with a resistive component of predetermined resistance, the main branch being connected in series with the secondary branches, and a control unit that analyzes voltages measured across terminals of the resistive components of the main branch and the secondary branches and as a function of the predetermined resistance of the resistive component of the main branch and that deduces a value of current flowing through the resistive components of the main branch and the secondary branches, the method comprising the steps of; measuring the voltage across the terminals of the resistive components of the main branch and the secondary branches; and determining an intensity of the current in the main branch and the secondary branches as a function of a characteristic of the resistive component of the main branch. - View Dependent Claims (10)
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Specification