ELECTRONIC DEVICE AND METHOD FOR TESTING A CIRCUIT BOARD
First Claim
1. An electronic device comprising:
- a circuit board having a set of input contacts, a set of output contacts and an electrical circuit connected between the input contacts and the output contacts, anda controller,wherein the controller is configured, at least once during operation of the device,to apply a predetermined test signal to the set of input contacts,to tap off a response signal at the set of output contacts,to carry out a signal analysis on the response signal,to compare a result of the signal analysis with an expected value stored in a memory of the controller, andif no match is determined between the signal analysis result and the expected value, to prevent, at least partially, further operation of at least part of the device,wherein the electrical circuit is configured as a passive network having a characteristic transfer function and comprises at least two separate partial circuits which, in the installed condition, are connected to electrically conduct by interaction with at least one of;
at least one device component and at least one installation component, andwherein the test signal is at least one of a pulsed signal, an alternating current signal with a predetermined frequency and an alternating current signal with a sequence of predetermined frequencies.
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Accused Products
Abstract
An electronic device, and associated method, provided with a circuit board (10), with a set of input contacts (IN/COM), a set of output contacts (OUT/COM) and an electrical circuit (18) connected between the input contacts (IN/COM) and the output contacts (OUT/COM) and a controller. The controller carries out a real-time test of the circuit board using a test signal introduced into the electrical circuit, the electrical circuit (18) being designed as a passive network having a characteristic transfer function and provided with at least two separate partial circuits (18′, 18″) wherein the separate partial circuits are electrically connected in the assembled state by cooperation with at least one of: at least one device components and/or assembly components (181).
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Citations
8 Claims
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1. An electronic device comprising:
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a circuit board having a set of input contacts, a set of output contacts and an electrical circuit connected between the input contacts and the output contacts, and a controller, wherein the controller is configured, at least once during operation of the device, to apply a predetermined test signal to the set of input contacts, to tap off a response signal at the set of output contacts, to carry out a signal analysis on the response signal, to compare a result of the signal analysis with an expected value stored in a memory of the controller, and if no match is determined between the signal analysis result and the expected value, to prevent, at least partially, further operation of at least part of the device, wherein the electrical circuit is configured as a passive network having a characteristic transfer function and comprises at least two separate partial circuits which, in the installed condition, are connected to electrically conduct by interaction with at least one of;
at least one device component and at least one installation component, andwherein the test signal is at least one of a pulsed signal, an alternating current signal with a predetermined frequency and an alternating current signal with a sequence of predetermined frequencies. - View Dependent Claims (2, 3, 5, 6, 7, 8)
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4. A method for testing a circuit board which comprises a set of input contacts, a set of output contacts and an electrical circuit connected between the input contacts and the output contacts, comprising:
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a) applying a predetermined test signal, configured as at least one of a pulsed signal, an alternating current signal with a predetermined frequency and an alternating current signal with a sequence of predetermined frequencies, to the set of input contacts, b) tapping off a response signal at the set of output contacts, c) analyzing the response signal, wherein a controller performs said applying, said tapping and said analyzing at least once during operation of an electronic device which comprises the circuit board, d) comparing a result of the signal analysis with an expected value, and e) if said comparing produces no match between the signal analysis result and the expected value, preventing, at least partially, further operation of at least part of the electronic device, wherein the electrical circuit is configured as a passive network having a characteristic transfer function and comprises at least two separate partial circuits which, in the installed condition, are connected to electrically conduct by interaction with at least one of;
at least one device component and at least one installation component.
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Specification