Skip to content

Commit

Permalink
Transformerless AC-DC converter
Browse files Browse the repository at this point in the history
- Added the spice simulation. Real design needs a fuse on the live line and an X Rated capacitor; I will need to research if it is possible to drop that much voltage across one of these capacitors. Making this change will reduce manufacturing cost and the board size drastically however efficiency is reduced and heat may be an issue. 

*Will look into adding a series capacitor to the neutral side, as well as a filter for possible high frequency voltage spikes on the main lines. 

**Circuit is no longer galvanically isolated from mains power and is more dangerous. Do not work on the circuit when it is live. As a result this will be the last thing I implement on my final design as it is safer to test the rest of the circuit under the current design conditions.
  • Loading branch information
haliburt authored Oct 10, 2017
1 parent 2dacc1b commit 84134dc
Show file tree
Hide file tree
Showing 2 changed files with 99 additions and 0 deletions.
Binary file added CAD Files/Transformerless AC-DC Converter.PNG
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
99 changes: 99 additions & 0 deletions CAD Files/Transformerless AC-DC Converter.asc
Original file line number Diff line number Diff line change
@@ -0,0 +1,99 @@
Version 4
SHEET 1 1104 680
WIRE -48 112 -80 112
WIRE 64 112 64 16
WIRE 64 112 32 112
WIRE 144 112 144 16
WIRE 144 112 128 112
WIRE 192 112 144 112
WIRE 480 112 336 112
WIRE 496 112 480 112
WIRE 672 112 576 112
WIRE 1008 112 928 112
WIRE 1008 144 1008 112
WIRE 144 160 128 160
WIRE 192 160 192 112
WIRE 480 160 480 112
WIRE 576 160 576 112
WIRE 672 160 672 112
WIRE -80 176 -80 112
WIRE 128 192 128 160
WIRE 128 192 96 192
WIRE 256 192 256 160
WIRE 336 192 336 112
WIRE 336 192 256 192
WIRE 128 224 128 192
WIRE 256 224 256 192
WIRE 480 240 480 224
WIRE 576 240 576 224
WIRE 576 240 480 240
WIRE 800 240 800 208
WIRE 800 240 576 240
WIRE 1008 240 1008 224
WIRE 1008 240 800 240
WIRE -80 272 -80 256
WIRE 192 272 192 224
WIRE 192 272 -80 272
WIRE 576 272 576 240
FLAG 96 192 0
FLAG 576 272 0
SYMBOL voltage -80 160 R0
WINDOW 3 -53 133 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 170 60)
SYMBOL zener 592 224 R180
WINDOW 0 -37 33 Left 2
WINDOW 3 -142 -31 Left 2
SYMATTR InstName D3
SYMATTR Value BZX84C6V2L
SYMBOL cap 464 160 R0
WINDOW 0 -18 47 Left 2
WINDOW 3 -57 9 Left 2
SYMATTR InstName C1
SYMATTR Value 1000�
SYMBOL cap 128 96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 0.6�
SYMBOL res 160 0 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 48 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 100
SYMBOL res 592 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL diode 128 176 R270
WINDOW 0 31 36 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMBOL diode 192 176 R270
WINDOW 0 28 38 VTop 2
WINDOW 3 -1 33 VBottom 2
SYMATTR InstName D2
SYMBOL diode 192 240 R270
WINDOW 0 -11 -64 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D4
SYMBOL diode 128 240 R270
WINDOW 0 -16 133 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D5
SYMBOL PowerProducts\\LT1117-3.3 800 112 R0
WINDOW 0 2 51 Bottom 2
WINDOW 3 -58 -43 Left 2
SYMATTR InstName U1
SYMBOL res 992 128 R0
SYMATTR InstName R1
SYMATTR Value 500
TEXT -130 336 Left 2 !.tran 0 1 0 0.01

0 comments on commit 84134dc

Please sign in to comment.