Intrinsically safe portable radio architecture
First Claim
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1. A portable radio device comprising:
- a portable radio device housing;
a first intrinsically safe circuit (ISC) disposed within said housing and arranged to perform at least one function to facilitate operation of said portable radio device;
at least a second ISC disposed within said housing and arranged to perform at least a second function to facilitate operation of said portable radio device; and
a power distribution circuit disposed within said portable radio device housing and arranged to couple power from a power source to each of said first ISC and said second ISC;
wherein said first ISC includes a first power limiting circuitry interposed between said power distribution circuit and a first functional circuitry for performing said first functions, and at least said second ISC includes a second power limiting circuitry interposed between said power distribution circuit and second functional circuitry for performing said second function; and
wherein said first and second ISC each independently satisfy a defined standard for intrinsic safety selected from the group consisting of FM3610, IEC 60079-11 or ANSI/ISA 60079-11.
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Abstract
An intrinsically safe portable radio device (100) having a portable radio device housing (120). A first radio section (201) is an intrinsically safe circuit is (ISC) disposed within the housing and arranged to perform at least one function to facilitate operation of the portable radio device. A second radio section (202) ISC is disposed within the housing and arranged to perform at least a second function to facilitate operation of the portable radio device. Each of the first and second ISCs independently satisfy a defined standard for intrinsically safe devices.
11 Citations
24 Claims
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1. A portable radio device comprising:
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a portable radio device housing; a first intrinsically safe circuit (ISC) disposed within said housing and arranged to perform at least one function to facilitate operation of said portable radio device; at least a second ISC disposed within said housing and arranged to perform at least a second function to facilitate operation of said portable radio device; and a power distribution circuit disposed within said portable radio device housing and arranged to couple power from a power source to each of said first ISC and said second ISC; wherein said first ISC includes a first power limiting circuitry interposed between said power distribution circuit and a first functional circuitry for performing said first functions, and at least said second ISC includes a second power limiting circuitry interposed between said power distribution circuit and second functional circuitry for performing said second function; and wherein said first and second ISC each independently satisfy a defined standard for intrinsic safety selected from the group consisting of FM3610, IEC 60079-11 or ANSI/ISA 60079-11. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A portable radio device comprising:
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a portable radio device housing; a first intrinsically safe circuit (ISC) disposed within said housing and arranged to perform at least one function to facilitate operation of said portable radio device; a second ISC disposed within said housing and arranged to perform at least a second function to facilitate operation of said portable radio device; a third ISC disposed within said housing and arranged to perform at least a third function to facilitate operation of said portable radio device; a power distribution circuit disposed within said housing and arranged to couple power from at least one power source to each of said first, second and third ISC; wherein said first, second and third ISC respectively include a first, second and third power limiting circuitry respectively interposed between said power distribution circuit and a first, second and third functional circuitry for performing said first, second and third functions, said first, second and third power limiting circuitry are each arranged to limit a total power which can be communicated to said first, second and third functional circuitry, respectively; and wherein said first, second and third ISC each independently satisfy a defined standard for intrinsically safe devices selected from the group consisting of FM3610, IEC 60079-11 or ANSI/ISA 60079-11. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A portable radio device comprising:
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a portable radio device housing; a first intrinsically safe circuit (ISC) disposed within said housing and arranged to perform at least one function to facilitate operation of said portable radio device; at least a second ISC disposed within said housing and arranged to perform at least a second function to facilitate operation of said portable radio device; a power distribution circuit disposed within said housing and arranged to couple power from a power source to each of said first ISC and at least said second ISC; wherein said first ISC includes a first power limiting circuitry interposed between said power distribution circuit and a first functional circuitry for performing said first functions, and at least said second ISC includes a second power limiting circuitry interposed between said power distribution circuit and second functional circuitry for performing said second function; wherein said first and second ISC each independently satisfy a defined standard for intrinsically safe devices; and wherein said first power limiting circuitry limits measured matched power of said first ISC to a value which is less than a predetermined value defined by a standard selected from the group consisting of FM3610, IEC 60079-11 or ANSI/ISA 60079-11. - View Dependent Claims (23, 24)
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Specification