How do you calculate voltage peaks after a tube full-wave re

A

at

Guest
How do you calculate the voltage peaks of voltage coming out of a full-wave
rectifier tube?

If 230V 50Hz AC has voltage peaks approx 1.41 times the average voltage, the
voltage peaks seen by the rectifier tube would also be like that. But what
happens in the rectifier? How high are the peaks coming out of it?
The rectifier in question is a GZ34 tube, and it has a voltage multiplier of
1.3, so output voltage (DC) is 1.3 times input voltage (AC), so if 230VAC
average goes in, the output is 299 average. But how high are the voltage
peaks that come out of the tube?

Thanks!

-at
 
The voltage drop through a tube rectifier under light load is practically
zero.

"at" <poista.taatii@poista.welho.com> wrote in message
news:cgsn6g$onj$1@nyytiset.pp.htv.fi...
How do you calculate the voltage peaks of voltage coming out of a
full-wave
rectifier tube?

If 230V 50Hz AC has voltage peaks approx 1.41 times the average voltage,
the
voltage peaks seen by the rectifier tube would also be like that. But what
happens in the rectifier? How high are the peaks coming out of it?
The rectifier in question is a GZ34 tube, and it has a voltage multiplier
of
1.3, so output voltage (DC) is 1.3 times input voltage (AC), so if 230VAC
average goes in, the output is 299 average. But how high are the voltage
peaks that come out of the tube?

Thanks!

-at
Click to expand...
 
"at" <poista.taatii@poista.welho.com> schreef in bericht
news:cgsn6g$onj$1@nyytiset.pp.htv.fi...
How do you calculate the voltage peaks of voltage coming out of a
full-wave
rectifier tube?

If 230V 50Hz AC has voltage peaks approx 1.41 times the average voltage,
the
voltage peaks seen by the rectifier tube would also be like that. But what
happens in the rectifier? How high are the peaks coming out of it?
The rectifier in question is a GZ34 tube, and it has a voltage multiplier
of
1.3, so output voltage (DC) is 1.3 times input voltage (AC), so if 230VAC
average goes in, the output is 299 average. But how high are the voltage
peaks that come out of the tube?

Thanks!

-at
Click to expand...
According to the datasheet
http://www.drtube.com/tubedata.htm
the peak voltage depends on the current. If you have no or a very small
load, the peak voltage will be about 1.41 * Vin. Vin being the RMS value of
a sine wave AC source. The current will highly depend on the load and the
smoothing filter. This and the accurancy of the tube parameters make a
general calculation scheme less usefull. (Although you can make one if you
want.)

petrus bitbyter


---
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Checked by AVG anti-virus system (http://www.grisoft.com).
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Hi,

This should give you sufficient information to work it out for
your particular set of circumstances -


http://home.comcast.net/~enghenry/diy/5687/5AR4.pdf


Cheers - Joe
 
at wrote:
How do you calculate the voltage peaks of voltage coming out of a
full-wave rectifier tube?

If 230V 50Hz AC has voltage peaks approx 1.41 times the average
voltage, the voltage peaks seen by the rectifier tube would also be
like that. But what happens in the rectifier? How high are the peaks
coming out of it? The rectifier in question is a GZ34 tube, and it
has a voltage multiplier of
1.3, so output voltage (DC) is 1.3 times input voltage (AC), so if
230VAC average goes in, the output is 299 average. But how high are
the voltage peaks that come out of the tube?

Thanks!
Click to expand...
"How do you calculate voltage peaks after a tube full-wave rectifier?"

Just run some spice simulations. It will take you < 1sec per run.


Hint: SuperSpice has the GZ34 tube model and a symbol for it.


Kevin Aylward
salesEXTRACT@anasoft.co.uk
http://www.anasoft.co.uk
SuperSpice, a very affordable Mixed-Mode
Windows Simulator with Schematic Capture,
Waveform Display, FFT's and Filter Design.
 
Thanks.

This will help.

-at

"at" <poista.taatii@poista.welho.com> wrote in message
news:cgsn6g$onj$1@nyytiset.pp.htv.fi...
How do you calculate the voltage peaks of voltage coming out of a
full-wave
rectifier tube?

If 230V 50Hz AC has voltage peaks approx 1.41 times the average voltage,
the
voltage peaks seen by the rectifier tube would also be like that. But what
happens in the rectifier? How high are the peaks coming out of it?
The rectifier in question is a GZ34 tube, and it has a voltage multiplier
of
1.3, so output voltage (DC) is 1.3 times input voltage (AC), so if 230VAC
average goes in, the output is 299 average. But how high are the voltage
peaks that come out of the tube?

Thanks!

-at
Click to expand...
 
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