Circa 1973...

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

America: Land of the Free, Because of the Brave

On Sat, 02 Aug 2008 16:39:35 -0700, Jim Thompson
wrote:


Circa 1973...

...Jim Thompson
Is that a rough draft?

Heres a neater version. 1983 Unitrode Design Seminars

http://www-s.ti.com/sc/techlit/slup060.pdf

On Sun, 03 Aug 2008 02:16:29 GMT, Hammy wrote:

On Sat, 02 Aug 2008 16:39:35 -0700, Jim Thompson
wrote:


Circa 1973...

...Jim Thompson
Is that a rough draft?

No. It was done strictly for my own benefit... note the TI
programmable calculator listing and magnetic card. I used it to size
transformers and filter capacitors... back in the dark ages (before
CAD ;-)


Heres a neater version. 1983 Unitrode Design Seminars

http://www-s.ti.com/sc/techlit/slup060.pdf

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

American English usage has many irregularly declined nouns
For example, Democrat is the pluperfect form of ignoramus

On Sat, 02 Aug 2008 16:39:35 -0700, Jim Thompson
wrote:


Circa 1973...

...Jim Thompson

This analysis assumes an undistorted sinusoidal waveform at the input to the
rectifier, which is not the case if the transformer (or other source) has some
resistance. It might be appropriate for a low power rectifier operating
directly from the grid, but generally not.

On 3 Aug 2008 12:03:02 -0500, The Phantom wrote:

On Sat, 02 Aug 2008 16:39:35 -0700, Jim Thompson
wrote:


Circa 1973...

...Jim Thompson

This analysis assumes an undistorted sinusoidal waveform at the input to the
rectifier, which is not the case if the transformer (or other source) has some
resistance. It might be appropriate for a low power rectifier operating
directly from the grid, but generally not.

Indeed. But this was a number of years pre-CAD. I'd just simulate it
now... might take all of one minute ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

Global Warming is God's gift to the Blue States

Jim Thompson a écrit :
On 3 Aug 2008 12:03:02 -0500, The Phantom wrote:

On Sat, 02 Aug 2008 16:39:35 -0700, Jim Thompson
wrote:

Circa 1973...

...Jim Thompson
This analysis assumes an undistorted sinusoidal waveform at the input to the
rectifier, which is not the case if the transformer (or other source) has some
resistance. It might be appropriate for a low power rectifier operating
directly from the grid, but generally not.

Indeed. But this was a number of years pre-CAD. I'd just simulate it
now... might take all of one minute ;-)


Wot? Design by simulation?
Nah, it can't be...

--
Thanks,
Fred.

On Mon, 04 Aug 2008 18:07:41 +0200, Fred Bartoli " " wrote:

Jim Thompson a écrit :
On 3 Aug 2008 12:03:02 -0500, The Phantom wrote:

On Sat, 02 Aug 2008 16:39:35 -0700, Jim Thompson
wrote:

Circa 1973...

...Jim Thompson
This analysis assumes an undistorted sinusoidal waveform at the input to the
rectifier, which is not the case if the transformer (or other source) has some
resistance. It might be appropriate for a low power rectifier operating
directly from the grid, but generally not.

Indeed. But this was a number of years pre-CAD. I'd just simulate it
now... might take all of one minute ;-)


Wot? Design by simulation?
Nah, it can't be...

No. Just determination of capacitor sizing.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

American English usage has many irregularly declined nouns
For example, Democrat is the pluperfect form of ignoramus