Intuitive electronic circuit
DCFirst Claim
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1. An apparatus comprising:
- an electrical interface;
a signal source operable to output a reference signal via the electrical interface, in which the reference signal is a direct current (DC) signal;
a first light source; and
a logic circuit operable to;
receive, via the electrical interface a first signal indicative of a response to the reference signal;
determine a second signal based on the first signal, in which, in determining the second signal, the logic circuit is operable to;
measure the voltage differential across a resistive element of the signal source;
determine a first value of the second signal if the measured voltage differential is zero, in which the first value of the second signal is a value that instructs the light source to not emit light; and
determine a second value of the second signal if the measured voltage differential is non-zero, in which the second value of the second signal is a value that instructs the light source to emit light; and
transmit the second signal to the first light source.
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Abstract
An apparatus according to various embodiments may detect the state of an external switch (14). An apparatus (1000) according to various embodiments may activate or deactivate an appliance based on the state of the external switch (14). An apparatus according to various embodiments may activate or deactivate an appliance based on the state of the external switch (14), even in the absence of grid power (3).
9 Citations
7 Claims
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1. An apparatus comprising:
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an electrical interface; a signal source operable to output a reference signal via the electrical interface, in which the reference signal is a direct current (DC) signal; a first light source; and a logic circuit operable to; receive, via the electrical interface a first signal indicative of a response to the reference signal; determine a second signal based on the first signal, in which, in determining the second signal, the logic circuit is operable to; measure the voltage differential across a resistive element of the signal source; determine a first value of the second signal if the measured voltage differential is zero, in which the first value of the second signal is a value that instructs the light source to not emit light; and determine a second value of the second signal if the measured voltage differential is non-zero, in which the second value of the second signal is a value that instructs the light source to emit light; and transmit the second signal to the first light source. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus comprising:
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an electrical interface; a signal source operable to output a reference signal via the electrical interface, in which the signal source is circuit with a plurality of elements and nodes including; a first electrical contact at a first node at which a reference voltage is received; a second electrical contact at a second node at which a signal voltage is output; a first resistive element spanning the first node and the second node; a second resistive element spanning the second node and a third node; a third resistive element spanning the third node and a fourth node; a first set of diodes arranged in parallel spanning the fourth node and a fifth node, the first set of diodes permitting current flow from the fourth node to the fifth node; a third electrical contact at the fifth node; a fourth electrical contact at a sixth node; a fourth resistive element spanning the sixth node and an eighth node, the eighth node being grounded; a second set of diodes arranged in parallel spanning the eighth node and a seventh node, the second set of diodes permitting current flow from the eighth node to the seventh node; a third set of diodes spanning the eighth node and the third node, the third set of diodes permitting current flow from the eighth node to the third node; a capacitive element spanning the third node and the eighth node; and a fifth resistive element spanning the fourth node and the seventh node, a first light source; and a logic circuit operable to; receive, via the electrical interface a first signal indicative of a response to the reference signal; determine a second signal based on the first signal; and transmit the second signal to the first light source.
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7. An apparatus comprising:
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an electrical interface; a signal source operable to output a reference signal via the electrical interface, in which the signal source is a circuit comprising; a first electrical contact for receiving a reference voltage; a second electrical contact; a third electrical contact for interfacing with the line terminal of a grid network; a fourth electrical contact for interfacing with the neutral terminal of the grid network; in which the signal source functions as a voltage divider placing a resistive element in series with an external load connected between the third and fourth electrical contacts, and in which the second electrical contact outputs a version of the reference voltage that is stepped down across the resistive element if current flows through the external load, in which the signal source is operable to; send a first signal, in which the first signal comprises a flat signal of a first voltage; measure a first response to the first signal; send, in the event that the first response matches a first reference response, a second signal, in which the second signal comprises a pulsating signal of the first voltage; measure, in the event that the first response matches the second signal, the second response to the second signal; send, in the event that the second response matches a second reference response, a third signal, in which the third signal comprises a pulsating signal at a second voltage that is higher than the first voltage; measure, in the event that the second response matches the second reference signal, a third response to the third signal; and transmit a fourth signal causing the activation of a secondary light source in the event that the first response does not match the first reference response, the second response does not match the second reference response, or the third response does not match a third reference response, a first light source; and a logic circuit operable to; receive, via the electrical interface a first signal indicative of a response to the reference signal; determine a second signal based on the first signal; and transmit the second signal to the first light source.
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Specification