201303.pdf 36567KB Mar 22 2013 09:11:22 PM

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Which process and supplier
are best for my design?
38
One of the most difficult tasks circuit
designers face is selecting the optimum
components to meet the demands of
both the system and the environment.
by Steve Taranovich, Senior Technical Editor
contents
March 2013
10
Tips
10 software tips
for hardware engineers
Here is some advice that I wish
48I’d received back in the day
when I was transitioning from hardware
to software.
by Jacob Beningo,
Beningo Engineering
LED-driving techniques
reduce power in
LCD TVs
New design techniques in
31LED-driver circuits promise to
deliver significant energy savings.
by Peter Rust, Werner Schögler,
Manfred Pauritsch, and
Herbert Truppe, AMS AG
COVER IMAGE: GIULIA FINI
IMAGE(S): SHUTTERSTOCK, THINKSTOCK
1
nF
D 1
D 2
D 3
D 4
DESIGNIDEASR 6
R 3
47k
R 4
47k
D 5
C 3
1 μF
10V
C 2
1 μF
10V
10k
5V
R 7
10k
ISO 1
51 Circuit maximizes pulse-width-modulated DAC throughput
OC 1
52 A circuit 4N33 for mains synchronization has two separate outputs for each half-period
55 Low-component-count zero-crossing detector is low power
Q 5
57 DC-DC OC converter 2 starts up and operates from a single photocell
2N3904 4N33
58 Filter quashes 60-Hz interference ISO 2
▶ Find out how to submit your own Design Idea: www.edn.com/4394666.
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MARCH 2013 | EDN 5