in my project the capacitors always overheat and explode ( i us in 160V 68uF ) what can i do that the capacitors don't overheat and explode....????
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the parts:
R1,R2 = 10 ohm, 5 watt
R3,R4 = 180 ohm, 1 watt
C1,C2 = 68uF, 50 Volt (or higher volt)
D1,D2 = 1N4002
Q1,Q2 = 2N3055
T1 = 220 / 24ct Transformer
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the parts:
R1,R2 = 10 ohm, 5 watt
R3,R4 = 180 ohm, 1 watt
C1,C2 = 68uF, 50 Volt (or higher volt)
D1,D2 = 1N4002
Q1,Q2 = 2N3055
T1 = 220 / 24ct Transformer
Attachments
The way i used to build these, C1 and C2 did not exist.
The base resistors were 1k and went to the collector of
the other transistor.
The base resistors were 1k and went to the collector of
the other transistor.
i dont incomprehensible your explanation on the inverter...
u can post a circuit or painting of this??
if is work thanks u!!!!
u can post a circuit or painting of this??
if is work thanks u!!!!
Delete R3, R4, C1, C2
Tie resistor 1K from base of Q1 to Collector of Q2
Tie resistor 1K from base of Q2 to Collector of Q1
Tie resistor 1K from base of Q1 to Collector of Q2
Tie resistor 1K from base of Q2 to Collector of Q1
You probably want to delete R1, R2, D1 and D2 too.
Its about 50/60 hz, and is definitely NOT a sine wave.
Exact frequency depends on the transformer.
Very similar to the heathkit inverters of years ago...
What do you want to do with it???
With the transistors specified it is good for about 200 watts
max.
Its about 50/60 hz, and is definitely NOT a sine wave.
Exact frequency depends on the transformer.
Very similar to the heathkit inverters of years ago...
What do you want to do with it???
With the transistors specified it is good for about 200 watts
max.
this is work well?? i need it for home AMPLIFIER to put in a car...
my amp need 280W
and if i change the 2N3055 in 2N3771 is out more power?
my amp need 280W
and if i change the 2N3055 in 2N3771 is out more power?
Be careful. Your amp may not be happy with the output of the inverter.
Why not just use a car amp and be done with it?
Why not just use a car amp and be done with it?
I agree. You are going the wrong way down a one-way street...and there's no exits for miles. The schematic, either one, will not be high enough power to do what you want it to do and I recommend just getting a car stereo amplifier. As a side bar though: The home equipment should work fine with a squarewave 50/60 Hz but it is not recommended. The original schematic was an attempt at a astable multivibrator, also called an emmiter-couple oscillator. The "fix" was an attempt to change it into a similar circuit called an Royer oscillator. A "Royer oscillator" is a low power converter type circuit. Usually working a few kilohertz to a few tens of kHz. This would not be the type of circuit t use for a 12V automoblie system. You need a supply that is regulated and used a full-bridge configuration.
BeanZ
BeanZ
soooo anybady can post me a circuit or painting of easy inverter... that out 230V in the input will be 12V... ???
and i have a car amp in the car.... i jast want to activate a home amp's in the car...
and i have a car amp in the car.... i jast want to activate a home amp's in the car...
Your best bet is then to take out the powe supply that is in the amplifier now and design a converter for it. You will need to know the rail voltages for the amplifier channels. Otherwise, you are going DC to AC to DC again. That is 12VDC to 230AC to DC rails. This is a complete waste of a lot of things...space, energy, time, weight. Try designing a 12V-to-split symmetrical rails power supply. Then you can evaluate the amplifier channels in the car. That is the best advice that I can give to you. Also, none of the circuits shown will be able to work for a few reasons...the circuit frewheels at a constant frequency and duty cylce based on the number of turns and the saturation time for the transistor, it is unregulated, it wont be able to deliver enough current for an amplifier to run. You will have to go to a more complicated circuit. That circuit is good if you need a medium power oscillator.
BeanZ
BeanZ
To get 280 watts from 12 volts you will need 25 amps from your 12 volt power source. That assumes near 100% efficiency.
Throw in some real world losses of the above mentioned DC to AC to DC conversion and you get to the, "Just buy a 12 volt car amp" answer real quick.
Aud_Mot
Throw in some real world losses of the above mentioned DC to AC to DC conversion and you get to the, "Just buy a 12 volt car amp" answer real quick.
Aud_Mot
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