![Sonicare toothbrush teardown: microcontroller, H bridge, and inductive charging Sonicare toothbrush teardown: microcontroller, H bridge, and inductive charging](https://www.electronics-lab.com/wp-content/uploads/2016/09/sonicare-internals-composite.jpg)
Sonicare toothbrush teardown: microcontroller, H bridge, and inductive charging
Ken Shirriff did a teardown of a Sonicare electric toothbrush: The photos below show the top and bottom of the toothbrush internals. I expected to find a simple, low-cost mechanism, so I was surprised at how much complexity there was inside. The vibration mechanism (right) is built...
Continue Reading![LT3086 – 40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation LT3086 – 40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation](https://www.electronics-lab.com/wp-content/uploads/2016/09/160926edne-linear3086.jpg)
LT3086 – 40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation
Graham Prophet @ www.edn-europe.com discuss about LT3086 LDO. The 40V, 2.1A low dropout linear regulator (LDO) includes current monitoring with externally settable current limit and temperature monitoring with external control of thermal limit temperature. The device includes a...
Continue Reading![The new 800V CoolMOS MOSFET from Infineon The new 800V CoolMOS MOSFET from Infineon](https://www.electronics-lab.com/wp-content/uploads/2016/09/20160912142602_InfineonCoolMOS-P7.jpeg)
The new 800V CoolMOS MOSFET from Infineon
Thomas Scherer @ elektormagazine.com shares the news about a CoolMOS Mosfet from Infineon. The latest 800V CoolMOS P7 800V MOSFET from Infineon is based on their superjunction technology. The device is available in twelve classes of RDS(on) beginning with 0.28 Ω and in six...
Continue Reading![230V AC dimmer, mains isolated, using PIC12F629 230V AC dimmer, mains isolated, using PIC12F629](https://www.electronics-lab.com/wp-content/uploads/2016/09/dimmer-1024x701.jpg)
230V AC dimmer, mains isolated, using PIC12F629
This is a very simple mains isolated dimmer with a triac output (phase control). It uses timer0 to do the timing. There is no user interface, the value of the triac ignition delay after a zero crossing is defined by setting the reload value of timer0 (Tmr0) in the software...
Continue Reading![Short circuit tracer uses low power Short circuit tracer uses low power](https://www.electronics-lab.com/wp-content/uploads/2016/09/DI5471sch.png)
Short circuit tracer uses low power
Dan Meeks shares his design idea on edn.com: This Design Idea presents a low power short circuit finder that capitalizes on the ear’s sensitivity to changes in frequency. The heart of the circuit is a voltage-to-frequency converter (based on Linear Tech’s AN45, Figure 13, by Jim...
Continue Reading![L293D Motor Direction Controller L293D Motor Direction Controller](https://www.electronics-lab.com/wp-content/uploads/2016/09/F0UIIDBIT9PPHRC.MEDIUM.jpg)
L293D Motor Direction Controller
baelza.bubba @ instructables.com show us how to build a DC motor direction controller using L293D. I designed this DC Motor Direction Controller so that I could give direction control to DC motors that I am building into mini tools (drill, lathe, table saw, solder smoke extractor,...
Continue Reading![Convert $2 LED Lamp to $50 Smart Lamp Convert $2 LED Lamp to $50 Smart Lamp](https://www.electronics-lab.com/wp-content/uploads/2016/09/FEAYPKCITCH2RY1.MEDIUM.jpg)
Convert $2 LED Lamp to $50 Smart Lamp
taifur @ instructables.com show us how to convert a simple LED lamp to a smart one that can be controlled using a smartphone. A smart bulb is an internet or Bluetooth-capable LED light bulb that allows lighting to be customized, scheduled and controlled remotely. Smart bulbs are...
Continue Reading![Laser for sending music over a distance Laser for sending music over a distance](https://www.electronics-lab.com/wp-content/uploads/2016/09/laser-for-sending-music-over-a-d-1024x576.jpg)
Laser for sending music over a distance
Light is a very popular means of communication. Today, optical fiber communication is the backbone of telecommunication and internet. Light is guided through a fiber optic cable in such systems to achieve low-attenuation and high speed data transmission. Question is: Is it possible to use...
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