![]() 238000006243 chemical reaction Methods 0.000 description 3.229920005591 polysilicon Polymers 0.000 claims description 5.229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 6.Assignors: JEFFERIES FINANCE LLC Status Expired - Fee Related legal-status Critical Current Links reassignment LATTICE SEMICONDUCTOR CORPORATION RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assigned to LATTICE SEMICONDUCTOR CORPORATION, SILICON IMAGE, INC., DVDO, INC., SIBEAM, INC. Assignors: DVDO, INC., LATTICE SEMICONDUCTOR CORPORATION, SIBEAM, INC., SILICON IMAGE, INC. OF ID Publication of US5231316A publication Critical patent/US5231316A/en Application granted granted Critical Anticipated expiration legal-status Critical Assigned to JEFFERIES FINANCE LLC reassignment JEFFERIES FINANCE LLC SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IDAHO RESEARCH FOUNDATION, INC., A CORP. Assigned to LATTICE SEMICONDUCTOR CORPORATION reassignment LATTICE SEMICONDUCTOR CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. OF IDAHO ASSIGNMENT OF ASSIGNORS INTEREST. OF IDAHO reassignment IDAHO RESEARCH FOUNDATION, INC. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US07/785,443 priority Critical patent/US5231315A/en Application filed by Lattice Semiconductor Corp filed Critical Lattice Semiconductor Corp Priority to US07/853,453 priority patent/US5231316A/en Assigned to IDAHO RESEARCH FOUNDATION, INC. Original Assignee Lattice Semiconductor Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/853,453 Inventor Donald C. Google Patents Temperature compensated cmos voltage to current converterĭownload PDF Info Publication number US5231316A US5231316A US07/853,453 US85345392A US5231316A US 5231316 A US5231316 A US 5231316A US 85345392 A US85345392 A US 85345392A US 5231316 A US5231316 A US 5231316A Authority US United States Prior art keywords voltage current providing resistance temperature coefficient Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5231316A - Temperature compensated cmos voltage to current converter Remark: The “Drive Supply Voltage” (in Volts) and “Drive Temperature” (in degrees Celsius) parameters are also displayed in the “4_Drive Status” control panel, from EasyMotion Studio or Easy SetUp.US5231316A - Temperature compensated cmos voltage to current converter – the “Senor Gain” and the “Output at 0 oC” values can be found in the “Drive Info” window (below is an example for the iPOS4808 MY-CAN-STO drive). Temperature = (Voltage_Measured – Output at 0 o C ) / Sensor Gain The conversion to degrees Celsius will be done using the relation below. If the temperature sensor is present, the drive will indicate (in the AD7 parameter) a value between 0 IU and 65520 IU. Remark: The drive temperature is available only if the respective drive has an integrated temperature sensor. It can be found in the “Drive Info” window, that can be opened from the “Drive Setup” dialog (below is an example for the iPOS4808 MY-CAN-STO drive). Where VdcMaxMeasurable is the maximum measurable DC voltage expressed in. Voltage_measured = (VdcMaxMeasurable/65520) * Voltage_measured To convert them to volts and respective to degrees Celsius, the following scaling factors needs to be applied. The drive supply voltage can be read through the AD4 parameter and the drive temperature through the AD7 parameter returned values are expressed in IU (drive internal units).
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