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#: ../../source/electronic-bjt-current.rst:9
msgid "La fuente de corriente"
msgstr "The current source"

#: ../../source/electronic-bjt-current.rst:10
msgid ""
"Este circuito sirve para generar una corriente que se mantendrá "
"constante, independientemente de la tensión que haya a su salida. Es un "
"circuito muy utilizado para polarizar otras etapas de transistores, como "
"el par diferencial, para alimentar diodos led de corriente constante, "
"enviar información inmune al ruido eléctrico, etc."
msgstr ""
"This circuit serves to generate a current that will remain constant, "
"regardless of the voltage at its output. It is a circuit widely used to "
"polarize other transistor stages, such as the differential pair, to power"
" constant current LED diodes, send information immune to electrical "
"noise, etc."

#: ../../source/electronic-bjt-current.rst:22
msgid "Esquema de una fuente de corriente constante basada en transistores NPN."
msgstr "Schematic of a constant current source based on NPN transistors."

#: ../../source/electronic-bjt-current.rst:30
msgid "Símbolo de una fuente de corriente constante."
msgstr "Symbol of a constant current source."

#: ../../source/electronic-bjt-current.rst:34
msgid "Funcionamiento y cálculos"
msgstr "Operation and calculations"

#: ../../source/electronic-bjt-current.rst:35
msgid "La función de cada componente es la siguiente:"
msgstr "The function of each component is the following:"

#: ../../source/electronic-bjt-current.rst:37
msgid ""
"La resistencia R1 polariza la base del transistor Q2, que comienza a "
"conducir corriente."
msgstr ""
"Resistor R1 biases the base of transistor Q2, which begins to conduct "
"current."

#: ../../source/electronic-bjt-current.rst:40
msgid ""
"Al conducir corriente el transistor Q2, la tensión de la resistencia R2 "
"comienza a subir, hasta que llega aproximadamente a 0.6 voltios, que es "
"el momento en el que comienza a conducir corriente el transistor Q1."
msgstr ""
"As transistor Q2 conducts current, the voltage of resistor R2 begins to "
"rise, until it reaches approximately 0.6 volts, which is the moment at "
"which transistor Q1 begins to conduct current."

#: ../../source/electronic-bjt-current.rst:45
msgid ""
"Al conducir corriente el transistor Q1, la corriente de la resistencia R1"
" se escapa por el colector del transistor Q1 y deja de alimentar a la "
"base de Q2."
msgstr ""
"As transistor Q1 conducts current, the current in resistor R1 escapes "
"through the collector of transistor Q1 and stops feeding the base of Q2."

#: ../../source/electronic-bjt-current.rst:49
msgid ""
"El resultado final es que se mantiene una tensión prácticamente constante"
" en la base de Q1 y, por lo tanto, en la resistencia R2. Esa tensión "
"constante se traduce en que circulará una corriente prácticamente "
"constante por el emisor de Q2 y, despreciando la corriente de base, por "
"el colector de Q2."
msgstr ""
"The end result is that a practically constant voltage is maintained at "
"the base of Q1 and therefore at the resistor R2. This constant voltage "
"means that a practically constant current will flow through the emitter "
"of Q2 and, neglecting the base current, through the collector of Q2."

#: ../../source/electronic-bjt-current.rst:55
msgid "Aplicando la ley de Ohm:"
msgstr "Applying Ohm's law:"

#: ../../source/electronic-bjt-current.rst:57
msgid "I_{R2} = \\frac{V_{be}}{R_2}"
msgstr "I_{R2} = \\frac{V_{be}}{R_2}"

#: ../../source/electronic-bjt-current.rst:61
msgid "Siendo:"
msgstr "Being:"

#: ../../source/electronic-bjt-current.rst:63
msgid "I_R2 = Corriente que circula por la resistencia R2 en amperios [A]"
msgstr "I_R2 = Current flowing through resistance R2 in amperes [A]"

#: ../../source/electronic-bjt-current.rst:65
msgid "V_be = Tensión entre la base y el emisor del transistor Q1 en voltios [V]"
msgstr "V_be = Voltage between the base and emitter of transistor Q1 in volts [V]"

#: ../../source/electronic-bjt-current.rst:67
msgid "R_2 = Resistencia R2 en ohmios [Ω]"
msgstr "R_2 = Resistance R2 in ohms [Ω]"

#: ../../source/electronic-bjt-current.rst:69
msgid ""
"La tensión V_be puede variar, pero suele mantenerse en un valor alrededor"
" de 0.60 Voltios."
msgstr ""

#: ../../source/electronic-bjt-current.rst:74
msgid "Simulación"
msgstr "Simulation"

#: ../../source/electronic-bjt-current.rst:75
msgid ""
"A continuación puede verse la simulación de una fuente de corriente "
"constante basada en transistores NPN."
msgstr ""
"Below you can see the simulation of a constant current source based on "
"NPN transistors."

#: ../../source/electronic-bjt-current.rst:86
msgid "Ejercicios"
msgstr "Exercises"

#: ../../source/electronic-bjt-current.rst:88
msgid ""
"Dibuja un esquema simplificado de una fuente de corriente constante "
"basada en transistores NPN."
msgstr ""
"Draw a simplified schematic of a constant current source based on NPN "
"transistors."

#: ../../source/electronic-bjt-current.rst:91
msgid "Dibuja al lado el símbolo de la fuente de corriente constante."
msgstr "Draw the symbol for the constant current source next to it."

#: ../../source/electronic-bjt-current.rst:93
msgid ""
"Dibuja un esquema realista de una fuente de corriente constante basada en"
" transistores NPN, que alimenta a una resistencia."
msgstr ""
"Draw a realistic schematic of a constant current source based on NPN "
"transistors, which feeds a resistor."

#: ../../source/electronic-bjt-current.rst:96
msgid ""
"¿Cuál es la función principal de una fuente de corriente? ¿Qué "
"aplicaciones tiene?"
msgstr ""
"What is the main function of a current source? What applications does it "
"have?"

#: ../../source/electronic-bjt-current.rst:99
#: ../../source/electronic-bjt-current.rst:107
msgid ""
"En la simulación de la fuente de corriente constante podemos comprobar "
"cómo le afectan los cambios externos."
msgstr ""
"In the simulation of the constant current source we can check how "
"external changes affect it."

#: ../../source/electronic-bjt-current.rst:102
msgid ""
"Cambia la tensión de alimentación desde 9 voltios hasta 18 voltios en "
"pasos de 3 en 3 voltios y anota en una tabla cómo va variando la "
"corriente por el colector del transistor con el cambio de tensión de "
"alimentación."
msgstr ""
"Change the supply voltage from 9 volts to 18 volts in steps of 3 volts at"
" a time and record in a table how the current through the collector of "
"the transistor varies with the change in supply voltage."

#: ../../source/electronic-bjt-current.rst:110
msgid ""
"Con una tensión de alimentación de 9 voltios, cambia la resistencia R3 "
"por los valores 2000Ω, 1000Ω, 100Ω, 10Ω. Anota en una tabla cuánto vale "
"la corriente de colector para cada uno de los valores de resistencia."
msgstr ""
"With a supply voltage of 9 volts, change resistor R3 to the values "
"​​2000Ω, 1000Ω, 100Ω, 10Ω. Write down in a table how much the collector "
"current is for each of the resistance values."

#: ../../source/electronic-bjt-current.rst:115
msgid ""
"Diseña una fuente de corriente constante que funcione con una tensión de "
"alimentación de 12 voltios y con una corriente de colector de 10 "
"miliamperios."
msgstr ""
"Design a constant current source that operates with a supply voltage of "
"12 volts and a collector current of 10 milliamps."

#: ../../source/electronic-bjt-current.rst:119
msgid ""
"Para conseguirlo, cambia la tensión de alimentación a 12 voltios y "
"calcula la resistencia R2 necesaria con la siguiente fórmula:"
msgstr ""
"To achieve this, change the supply voltage to 12 volts and calculate the "
"necessary resistance R2 with the formula:"

#: ../../source/electronic-bjt-current.rst:122
msgid "R_2 = \\frac{V_{be}}{I_e}"
msgstr "R_2 = \\frac{V_{be}}{I_e}"

#: ../../source/electronic-bjt-current.rst:126
msgid ""
"Cambia en el simulador anterior los valores de tensión de alimentación y "
"de resistencia R2 para comprobar que funcionan correctamente."
msgstr ""

#: ../../source/electronic-bjt-current.rst:129
msgid ""
"Diseña en el `simulador de circuitos "
"<../circuits/?startCircuit=empty.txt>`__ una fuente de corriente negativa"
" constante. La forma del circuito será igual que la fuente simulada "
"anterior, pero utilizando transistores PNP y conectando el circuito en "
"espejo horizontal. Es decir, la resistencia R1 irá conectada al negativo "
"de la pila y la resistencia R2 irá conectada al positivo de la pila."
msgstr ""
"Design a constant negative current source in the `circuit simulator "
"<../circuits/?startCircuit=empty.txt>`__. The shape of the circuit will "
"be the same as the previous simulated source, but using PNP transistors "
"and connecting the circuit in a horizontal mirror. That is, resistor R1 "
"will be connected to the negative of the battery and resistor R2 will be "
"connected to the positive of the battery."

#~ msgid "Sin utilizar decimales para el valor de la resistencia."
#~ msgstr "Without using decimals for the resistance value."