Universal opto-coupled voltage system
First Claim
1. A voltage circuit system comprising:
- input terminals for connection to a first voltage;
a regulator connected to the input terminals;
an output driver connected to the regulator and for providing a second voltage; and
an isolator connected to the output driver; and
whereinthe isolator comprises an opto-coupler;
the first voltage is of a power source;
the second voltage is a reference voltage; and
the first voltage can have a magnitude between one and twenty times greater than a magnitude of the second voltage without affecting the magnitude of the second voltage, and at least one of a set of contacts of a relay that provides a connection to an opto-coupler circuit that has a magnitude of the first voltage.
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Accused Products
Abstract
A system for providing one or more voltages at predetermined magnitudes. The system may be supplied with power having a range of voltage magnitudes without affecting the predetermined magnitudes of the one or more voltages provided by the system and without a need to change circuitry of the system. The system may be connected, for example, from 28 VDC to 250 VAC without affecting the predetermined magnitudes of the output voltage or voltages. This system is protected from a mistaken power hook-up thought to be for 28 VDC but actually being connected to 250 VAC, which could be a disaster for a system not having the present circuitry. The system may be used for supplying power for opto-couplers in relay detection and other applications. The system may incorporate lightning and reverse polarity protection, reference and regulated voltages, an output driver, and input isolation circuitry.
136 Citations
15 Claims
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1. A voltage circuit system comprising:
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input terminals for connection to a first voltage; a regulator connected to the input terminals; an output driver connected to the regulator and for providing a second voltage; and an isolator connected to the output driver; and wherein the isolator comprises an opto-coupler; the first voltage is of a power source; the second voltage is a reference voltage; and the first voltage can have a magnitude between one and twenty times greater than a magnitude of the second voltage without affecting the magnitude of the second voltage, and at least one of a set of contacts of a relay that provides a connection to an opto-coupler circuit that has a magnitude of the first voltage. - View Dependent Claims (2, 3, 4)
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5. An opto-coupled voltage mechanism comprising:
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a protection module; a reference and regulation module connected to the protection module; an output driver connected to the reference and regulation module; an isolation module connected to the output driver; a reference opto-circuit connected to the output of the output driver for a reference voltage and to an output of the protection module for providing an opto reference sync signal; and a processor having an input connected to the reference opto-circuit for receiving the opto reference sync signal, wherein; the protection module has an input for a system voltage; the isolation module has an input for an enable signal; the output driver has an output for providing a reference voltage; and the system voltage can vary from a first value up to at least an order of magnitude greater than the first value, while the reference voltage remains at a second value. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method for adapting a circuit to a supply voltage of various magnitudes, comprising:
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generating one or more output voltages having constant levels from various supply line voltage levels; conveying the one or more output voltages to one or more opto-coupled signal circuits; turning on the one or more opto-coupled signal circuits when an input measurement is occurring; and wherein the one or more output voltages bias one or more opto-coupled signal circuits to operate in a correct active range, and limit current to the one or more opto-coupled signal circuits to a magnitude appropriately safe for the one or more opto-coupled signal circuits, and wherein an input measurement via an opto-coupled signal circuit needs to be active for just a fraction of a contiguous amount of time of a cycle of a supply line voltage available for the input measurement. - View Dependent Claims (12, 13, 14, 15)
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Specification