AMDave
03-27-2012, 05:49 PM
400*V DC/DC*Converter with a Choke
Since the transformer used currently in the converter block may be problematic in terms of availability and construction, I have decided to design a compatible converter using a choke.
http://radioactiveathome.org/images/przetwo.resized.jpg
The tube has to be powered with a voltage of ca. 400 V. Because the MC34063 has not been originally designed to work with such a high voltage, we have to use an external transistor working as a key. Such a use of the MC34063 is nothing new: a similar schematic diagram can be found in a STMicroelectronics datasheet.
More... (http://radioactiveathome.org/en/articles/136-400v-dcdcconverter-with-a-choke)
Since the transformer used currently in the converter block may be problematic in terms of availability and construction, I have decided to design a compatible converter using a choke.
http://radioactiveathome.org/images/przetwo.resized.jpg
The tube has to be powered with a voltage of ca. 400 V. Because the MC34063 has not been originally designed to work with such a high voltage, we have to use an external transistor working as a key. Such a use of the MC34063 is nothing new: a similar schematic diagram can be found in a STMicroelectronics datasheet.
More... (http://radioactiveathome.org/en/articles/136-400v-dcdcconverter-with-a-choke)