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Easy supercap backup power for smart grid
Figure 1: Backup power lasts for 6.5 secondsEveryone wants reliable smart meters. Utility customers want them so that the utility knows exactly when there is a power outage without the customer having...
View ArticleRecommended Gate Driver for digitally controlled Synchronous Buck NexFET...
Hello,I am designing a digitally controlled Synchronous Buck Converter. I have chosen CSD87352Q5D (NexFET Power Block) as the main and synchronous MOSFET. TMS320F28335 control card will be used as...
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How to keep your power switching frequency above the AM radio band
We’ve all been there before. After selecting a particular power-supply device, you build a printed circuit board (PCB) and evaluate it in your lab. You measure some basic parameters, such as efficiency...
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Are two inductors better than one?
Electronics’ continuous advancement into smaller devices with fewer and fewer components has been propelling the industry for decades. Notebooks and tablets, for example, are only possible due to...
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Find your pot of gold—no luck required!
With the upcoming St. Patrick’s Day holiday March 17, many of you will literally wear green and figuratively look for your very own pot of gold – or at least good-luck charms like horseshoes and...
View ArticleReducing current sense resistor value in TPS62150 LED driver
Hi,We are using a TPS62150 in CC mode to drive a white LED.Specs:Vin: 2.8-12VLED: Vf 2.6-2.9V, 300ma - 1A maxSS/TR pin connected to DAC to adjust LED forward current.In Application Report SLVA451 page...
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TPS62160 power good output not low
I got the TPS62160 EVAL board TPS62160EVM-627, and tested its power good output, found it can't maintain low when power is off (refer to attached waveform: Channel 1 is VOUT, channel 2 is PG).My...
View ArticleValidation on Non-Linear Voltage Regulators
Hi,Can someone provide any ideas of the best method to validate non-linear voltage regulators? Impedance profile and Bode-plot used in traditional validation are useless when non-linear voltage...
View ArticleNeed help selecting a DC-DC LED driver
Hi,We are using the TPS62150 in a constant current configuration to drive a white LED up to 1A. Would like to know if there is a more efficient part.Spec's:Vin 2.8V-12VVout 3.0V @ 1A maxThanks,Paul
View ArticleHow to build a 2.5A constant current?
I used to make some constant current supplies such as LM3407, LM3406 driver but all of them below 1.5A. Is there a TI's IC met 2.5A or combinable ICs helped me do this?I'm designing a Cree-XML2 Drivers...
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Charging a Li Pack with an Alkaline Pack and Switching Between Them
Hello everyone,There are several applications where it is preferable to use alkaline batteries. But since they have high internal resistance, I was wondering if it was possible to use the alkaline pack...
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Power your Bluetooth speaker with less
We all like to take our music with us on MP3 players. And since the invention of the boom box, many of us like to share our music as well. Shrinking the size of the boom box without sacrificing...
View ArticleLooking for a combination of LiPO charger, gauge and buck/boost
Hello,I am looking for a power management solution for my uC board that has a 3.7 V LiPo power supply. I need a 3.3 V output with a max current draw of 500 mA, and a battery gauge, as well as a USB...
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Do all rails in an ultra-low power system need ultra-low Iq?
All designers of ultra-low power systems are concerned about battery life. How much time will elapse before the battery in a fitness tracker will need recharging? Or, for primary cell systems, how long...
View ArticleRecommended Gate Driver for digitally controlled Synchronous Buck NexFET...
Hello,I am designing a digitally controlled Synchronous Buck Converter. I have chosen CSD87352Q5D (NexFET Power Block) as the main and synchronous MOSFET. TMS320F28335 control card will be used as...
View ArticleClik here to view.
How to keep your power switching frequency above the AM radio band
We’ve all been there before. After selecting a particular power-supply device, you build a printed circuit board (PCB) and evaluate it in your lab. You measure some basic parameters, such as efficiency...
View ArticleClik here to view.
Are two inductors better than one?
Electronics’ continuous advancement into smaller devices with fewer and fewer components has been propelling the industry for decades. Notebooks and tablets, for example, are only possible due to...
View ArticleClik here to view.
Find your pot of gold—no luck required!
With the upcoming St. Patrick’s Day holiday March 17, many of you will literally wear green and figuratively look for your very own pot of gold – or at least good-luck charms like horseshoes and...
View ArticleClik here to view.
Make your audio amplifier more efficient with envelope tracking
A key design challenge for creating an audio amplifier is generating its power supply voltage. When using a single-cell lithium battery as the power source, a boost converter raises this voltage to...
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What can iDCS-Control do for your industrial system?
Industrial system designers typically standardize on one or two devices to provide a given function across their products. For example, they might use one or two power-supply integrated circuits (ICs)...
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