Path: EDN Asia >> News Centre >> Computing/Peripherals >> EDN Asia's top 10 Design Ideas of 2013
Computing/Peripherals Share print

EDN Asia's top 10 Design Ideas of 2013

22 Jan 2014

Share this page with your friends

Measure currents without resistive insertion loss

In most cases, you measure current by converting it into a proportional voltage and then measuring the voltage. There are two typical methods for making the conversion: You either insert a probing resistor, RP, in series with the current path and use differential amplifier IC1 to measure the resulting voltage drop, or use operational amplifier current-to-voltage converter in which inverted IC1's output sinks the incoming current through the feedback resistor.

Simple diode acts as sensor for thermal probe

This article describes a two-transistor thermal probe for identifying circuit problems such as hot components and thermal runaway. Although the probe does not provide an accurate temperature measurement, it acts as a quick check for potential thermal problems by simply probing a suspicious component with the sensing diode.

LED intrinsic capacitance works in 650-mV LRC IC

You can use the inherent capacitance of an LED to make a series resonant boost circuit that can create a voltage large enough to light the LED. Depending on the colour of the LED, you need a voltage higher than 1.6V to turn it on. The threshold, or knee, voltage rises higher as the LED wavelength becomes shorter.


 First Page Previous Page 1 • 2 • 3


Want to more of this to be delivered to you for FREE?

Subscribe to EDN Asia alerts and receive the latest design ideas and product news in your inbox.

Got to make sure you're not a robot. Please enter the code displayed on the right.

Time to activate your subscription - it's easy!

We have sent an activate request to your registerd e-email. Simply click on the link to activate your subscription.

We're doing this to protect your privacy and ensure you successfully receive your e-mail alerts.


Add New Comment
Visitor (To avoid code verification, simply login or register with us. It is fast and free!)
*Verify code:
Tech Impact

Regional Roundup
Control this smart glass with the blink of an eye
K-Glass 2 detects users' eye movements to point the cursor to recognise computer icons or objects in the Internet, and uses winks for commands. The researchers call this interface the "i-Mouse."

GlobalFoundries extends grants to Singapore students
ARM, Tencent Games team up to improve mobile gaming


News | Products | Design Features | Regional Roundup | Tech Impact