Abstract
A low cost prototype of a government system is developed for laser diodes with STM32F4 microcontrollers and Peltier cooling. Commercial and homemade government system (with STM32F4 microcontrollers ) are investigated with the objective of adequately control the current of a laser diode. Characteristics of STM32F4 microcontrollers are described. The low cost platforms as the Arduino and Raspberry Pi are compared. A bibliographical and documentary compilation is realized for the preliminary study of the components and tools to use in the prototype. The theory related with the heat transfer between a laser diode and the outside, and a Peltier cell and outside is summarized. A heat dissipation model is proposed of a system formed by a laser diode and Peltier cell. A control system of current and fed back temperature is designed and implemented to allow adequately control laser diodes without and with photodiode (2 pickups and 3 pickups respectively). The viability of control with free software is studied and corroborated. The temperature control of the laser diode using a Peltier cell as cooler has been possible through a simple control of ON/OFF mode. The integration of devices such as ADC, DAC, timers and facilities of STM32F4 microcontroller, have allowed to
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Citation Formats
Ulloa Solano, Natalia Irina.
Control by hardware of government systems for laser diodes with STM32F4 and Peltier cells; Control por hardware de sistemas de gobierno para diodos laser con STM32F4 y celdas Peltier.
Costa Rica: N. p.,
2013.
Web.
Ulloa Solano, Natalia Irina.
Control by hardware of government systems for laser diodes with STM32F4 and Peltier cells; Control por hardware de sistemas de gobierno para diodos laser con STM32F4 y celdas Peltier.
Costa Rica.
Ulloa Solano, Natalia Irina.
2013.
"Control by hardware of government systems for laser diodes with STM32F4 and Peltier cells; Control por hardware de sistemas de gobierno para diodos laser con STM32F4 y celdas Peltier."
Costa Rica.
@misc{etde_22233947,
title = {Control by hardware of government systems for laser diodes with STM32F4 and Peltier cells; Control por hardware de sistemas de gobierno para diodos laser con STM32F4 y celdas Peltier}
author = {Ulloa Solano, Natalia Irina}
abstractNote = {A low cost prototype of a government system is developed for laser diodes with STM32F4 microcontrollers and Peltier cooling. Commercial and homemade government system (with STM32F4 microcontrollers ) are investigated with the objective of adequately control the current of a laser diode. Characteristics of STM32F4 microcontrollers are described. The low cost platforms as the Arduino and Raspberry Pi are compared. A bibliographical and documentary compilation is realized for the preliminary study of the components and tools to use in the prototype. The theory related with the heat transfer between a laser diode and the outside, and a Peltier cell and outside is summarized. A heat dissipation model is proposed of a system formed by a laser diode and Peltier cell. A control system of current and fed back temperature is designed and implemented to allow adequately control laser diodes without and with photodiode (2 pickups and 3 pickups respectively). The viability of control with free software is studied and corroborated. The temperature control of the laser diode using a Peltier cell as cooler has been possible through a simple control of ON/OFF mode. The integration of devices such as ADC, DAC, timers and facilities of STM32F4 microcontroller, have allowed to optimize costs by hardware, save time and costs. Also, the incorporation of the Cortex-M4 processor has optimized the consumption of operational resources and has executed much of its instruction set of efficient way. Because of this, the project has complied with its maximum as to low cost is concerned [Spanish] Un prototipo de bajo costo de un sistema de gobierno es desarrollado para diodos laser con microcontroladores STM32F4 y enfriamiento con Peltier. Los sistemas de gobierno comerciales y caseros (con microcontroladores STM32F4) son investigados con el objetivo de controlar adecuadamente la corriente de un diodo laser. Las caracteristicas de los microcontroladores STM32F4 son descritas. Las plataformas de bajo costo como el Arduino y el Raspberry Pi son comparadas. Una recopilacion bibliografica y documental es realizada para el estudio preliminar de los componentes y herramientas a utilizar en el prototipo. La teoria relacionada con la transferencia de calor entre un diodo laser y el exterior, y una celda Peltier y exterior es resumida. Un modelo de disipacion de calor es propuesto de un sistema formado por un diodo laser y una celda Peltier. Un sistema de control de corriente y temperatura retroalimentado es disenado e implementado para permitir controlar adecuadamente diodos laser sin y con fotodiodo (2 pastillas y 3 pastillas respectivamente). La viabilidad del control con software libre es estudiado y corroborado. El control de la temperatura del diodo laser usando una celda Peltier como enfriador ha sido posible mediante un control sencillo de modo ON/OFF. La integracion de dispositivos tales como ADC, DAC, temporizadores y facilidades del microcontrolador STM32F4, han permitido optimizar costos por hardware, ahorrar tiempo y costos. Asimismo, la incorporacion del procesador Cortex-M4 ha optimizado el consumo de recursos operativos y ha ejecutado gran parte de su set de instrucciones de forma eficiente. Debido a lo anterior, el proyecto ha cumplido con su maxima en cuanto a bajo costo se refiere.}
place = {Costa Rica}
year = {2013}
month = {Jul}
}
title = {Control by hardware of government systems for laser diodes with STM32F4 and Peltier cells; Control por hardware de sistemas de gobierno para diodos laser con STM32F4 y celdas Peltier}
author = {Ulloa Solano, Natalia Irina}
abstractNote = {A low cost prototype of a government system is developed for laser diodes with STM32F4 microcontrollers and Peltier cooling. Commercial and homemade government system (with STM32F4 microcontrollers ) are investigated with the objective of adequately control the current of a laser diode. Characteristics of STM32F4 microcontrollers are described. The low cost platforms as the Arduino and Raspberry Pi are compared. A bibliographical and documentary compilation is realized for the preliminary study of the components and tools to use in the prototype. The theory related with the heat transfer between a laser diode and the outside, and a Peltier cell and outside is summarized. A heat dissipation model is proposed of a system formed by a laser diode and Peltier cell. A control system of current and fed back temperature is designed and implemented to allow adequately control laser diodes without and with photodiode (2 pickups and 3 pickups respectively). The viability of control with free software is studied and corroborated. The temperature control of the laser diode using a Peltier cell as cooler has been possible through a simple control of ON/OFF mode. The integration of devices such as ADC, DAC, timers and facilities of STM32F4 microcontroller, have allowed to optimize costs by hardware, save time and costs. Also, the incorporation of the Cortex-M4 processor has optimized the consumption of operational resources and has executed much of its instruction set of efficient way. Because of this, the project has complied with its maximum as to low cost is concerned [Spanish] Un prototipo de bajo costo de un sistema de gobierno es desarrollado para diodos laser con microcontroladores STM32F4 y enfriamiento con Peltier. Los sistemas de gobierno comerciales y caseros (con microcontroladores STM32F4) son investigados con el objetivo de controlar adecuadamente la corriente de un diodo laser. Las caracteristicas de los microcontroladores STM32F4 son descritas. Las plataformas de bajo costo como el Arduino y el Raspberry Pi son comparadas. Una recopilacion bibliografica y documental es realizada para el estudio preliminar de los componentes y herramientas a utilizar en el prototipo. La teoria relacionada con la transferencia de calor entre un diodo laser y el exterior, y una celda Peltier y exterior es resumida. Un modelo de disipacion de calor es propuesto de un sistema formado por un diodo laser y una celda Peltier. Un sistema de control de corriente y temperatura retroalimentado es disenado e implementado para permitir controlar adecuadamente diodos laser sin y con fotodiodo (2 pastillas y 3 pastillas respectivamente). La viabilidad del control con software libre es estudiado y corroborado. El control de la temperatura del diodo laser usando una celda Peltier como enfriador ha sido posible mediante un control sencillo de modo ON/OFF. La integracion de dispositivos tales como ADC, DAC, temporizadores y facilidades del microcontrolador STM32F4, han permitido optimizar costos por hardware, ahorrar tiempo y costos. Asimismo, la incorporacion del procesador Cortex-M4 ha optimizado el consumo de recursos operativos y ha ejecutado gran parte de su set de instrucciones de forma eficiente. Debido a lo anterior, el proyecto ha cumplido con su maxima en cuanto a bajo costo se refiere.}
place = {Costa Rica}
year = {2013}
month = {Jul}
}