[AMPS] Bridge vs. Doubler

[Rich Measures]

>
>In message <+58MpKAl5+L3Ew5U@txrx.demon.co.uk>, Steve Thompson
><amps@txrx.demon.co.uk> writes
>>
>
>>PPS I've no axe to grind here - According to Spice using the figures I
>>guessed at, the doubler does not deliver significantly lower ripple and
>>puts everything but the transformer insulation under greater strain.
>
>Now I've woken up properly, I realise that the strain on the insulation
>is just the same...
>
€  agreed, Steve.  As I understand it, the trade-offs are that the FWD 
filter requires twice as much capacitance and the FWB transformer 
typically needs about 1/3 more layers of paper insulation. 
 //  There is a simple circuit for switching a power supply from FWB (for 
RTTY, FM and CW) to FWD (for SSB).    - - see Figure 3 on my Web site.  
-  cheers


Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm