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Del libro /autor : José Rodríguez - Universidad Técnica Federico Santa María - Chile
Un convertidor de potencia se podría definir como un dispositivo que consta en su interior de un circuito eléctrico que convierte el tipo de la energía eléctrica, ya sea continua o discontinua.
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Aprendizaje
Transcripción
00:02This video will discuss the industrial electronics of author José Rodríguez, whose
00:08The application occurred in power electronics; we have the action scheme of the electronics
00:12In terms of power, we have an input voltage from the grid, and we have the processing of
00:17power, this is controlled by a signal controller, preferably an oscillator
00:22The 555 monostable square wave timer, and as an output we have a load that could well be
00:27A lamp, or a resistor. The classification of energy forms varies.
00:34Types such as rectifier, its input is alternating current and its energy flow to us
00:39In the conversion of direct current, we have the inverter, which is of direct current.
00:43With alternating current, a push button or chopper for direct current as a load, we have
00:49a small DC motor, and we have the converter cycle, are the different
00:53Among families of power converters, we have mixed frequency converters.
01:00It is with a DC voltage link, inverter rectifier, or current source, the switch
01:06It offers the user the voltage interruption of a semiconductor, turning it on and off.
01:11On/Off, okay, now we have the circuit to simulate which consists of a transistor, the controller
01:19It will be the 555 monostable multivibrator, to perform the measurements on a load, in this case a resistor.
01:26The voltages to be obtained and the pulse width modulation of the 555 are also shown.
01:42To perform the simulation, we will control the converter circuit; we have
01:48from the 555 timer, then some resistors, then a capacitor or capacitors, its measurement is one
02:02microfarad, and 10-farad, a direct current power supply
02:10of 5 volts, ground or earth, at the output we have an LED indicator, together
02:26with a resistance of 220 ohms, and we make the connection, here warn that in order not to make a mistake
02:32In the connection, we will need to investigate the pinout of the 555 timer, and we continue
03:02performing the required configurations and connections.
03:51Let's remember that the IC555 timer is an integrated circuit, a chip, used in the generation
03:57of timers, pulses, and oscillations. The 555 can be used to provide
04:04time delays, such as an oscillator, and as a flip-flap integrated circuit.
04:09Its derivatives provide up to 4 timing circuits in a single package.
04:33Thank you.
04:35Thank you.
04:35Thank you.
04:42Thank you.
04:54Thank you.
05:07We need to find the following curve of the initial voltage, and together with the timer
05:12the 555, with a pulse and square-shaped oscillations.
05:18Now let's look at the power circuit, which consists of a TIP 47 transistor, a 1N4407G diode,
05:30a 100 MHz inductor, a 1 Kilo Ohm resistor, and a 330 Ohm resistor.
06:05From the base of the transistor we connect a resistor.
06:18From 330 Ohms, at the output of the 555, from the collector we connect to the 5 volt current source
06:31continuous, the emitter will be connected to the diode in parallel with the 100 MHz inductor.
06:49Once the design is done, we center it, and from the oscilloscope we take the serial measurement
07:02With the 330 Ohm resistor, the other channel will take the measurement from the inductor.
07:14Now we will move on to the simulation, a DC to AC converter as well
07:19He is known as an investor.
07:21A single-phase transistor inverter conducts for half a period.
07:24The output voltage is alternating current; the output voltage can be controlled by varying
07:29the conduction time of the transistors.
07:47Here on the oscilloscope we present both channel 1 and channel 2 in a better way.
07:522, we configure their positions and the division by volts, in the section division per second
07:57We control the wavelength.
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08:38That's all, great! If you found the video helpful, don't forget to subscribe.
08:44Music
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