1.
(jCommunity Group)

2. uC/OS-III The Real-Time Kernel
(MyBlog/TB-Reviews)

I've long wanted to know more about how a Real-Time Operating System (RTOS) performs its magic and how to use one of these little rascals, but there's surprisingly little written about this subject. Fortunately, ...

3. Power Supplies 101 – Safety, Transformers & Primary Windings
(MyBlog/TB-Articles)

Introduction. In this series of articles were going to be looking at mains powered linear power supplies (PSU’s). Before we start, a word of caution. You should already be aware that the domestic mains ...

4. How to make Printed Circuit Boards.
(MyBlog/TB-Articles)

... a little too small really. Component pad holes for transistors, IC’s and resistors etc should be around 0.8mm. Power diodes, bridge rectifiers, TO220 transistors and voltage regulators, Molex connectors ...

5. Maplesoft extends modeling tools
(MyBlog/TB-Blog)

... problems in industries such as automotive, aerospace, electronics, and power. MapleSim for physical modeling and a collection of new toolboxes enable fast model development, advanced analysis, and the ...

6. New eSi-RISC Scalable Soft Processor Cores for ASICs and FPGAs
(MyBlog/TB-Blog)

... configurable and low-power soft processor cores – the eSi-1600, eSi-3200 and eSi-3250 - to its customer IP portfolio. The new processor cores are available immediately for deployment as part of EnSilica's ...

7. Interview Bites: Metro Ethernet Forum's Nan Chen on Carrier Ethernet
(MyBlog/TB-Articles)

My intent is to launch an interview series in this Community. When I first started covering fiber optics networking ages ago, Nan Chen was my first interview in the space. Nan had recently joined the Metro ...

8. PC Controlled DC Motor – Keyboard Control
(MyBlog/TB-Tech-Tips)

... TR5 and TR6 (type 2SC1483, or perhaps a BC548 or equivalent – ARW) are used to interface the power driver stage to the parallel port of the PC. The data bits D0 and D1 (pin 2 and pin 3) of the parallel ...

9. A LED Ultra-Violet (UV) PCB Exposure Unit
(MyBlog/TB-Articles)

... coating of a UV sensitive photo resist layer. This photo resist layer is very sensitive to UV light in the 340nm to 420nm wave lengths. Traditional UV exposure units use special mains powered UV tubes ...

10. Mobile Phone Switch – Freely phone home and control an appliance
(MyBlog/TB-Tech-Tips)

... its screen to light up, a lightdependent resistor (LDR) detects this and triggers a flip-flop (IC1) which turns a relay on or off, thus controlling the power to whatever is connected to the relay contacts.  ...

11. Microchip's 44 Pin Demo board - what to do with it once you've flashed the LED's
(MyBlog/TB-Articles)

... short circuits. The other “enhancement” to complete is the bending of the Demo Boards LED power jumper; you can see this jumper in figure 3 on the left hand side. This jumper when fitted allows power ...

12. 12V Sealed Lead/Acid Charger – Cyclic Battery Use
(MyBlog/TB-Tech-Tips)

... open circuit voltage across pins 2 and 5 of theL200 (with power applied to its input). This is the reference voltage and should be in the region of 450mV which is divided by therequired output current ...

13. Turn your car into a hybrid
(MyBlog/TB-Tech-Tips)

... Kit could go 30 miles on battery power alone. Target kit cost is $3,000 to $5,000—so you figure out the payback period for your car. Perry's invention received first prize in a green energy competition ...

14. Two-stroke engine rebirth?
(MyBlog/TB-Blog)

EcoMotors OPOC internal combustion engine is an update of two-stroke powerplants. The acronym stands for opposed piston opposed cylinder, which describes a "module" consisting of a pair of pistons moving ...

15. Gray Codes (Part 2)
(MyBlog/TB-Articles)

... preventing intermediate states, Gray code counters consume only half the power of an equivalent binary counter and they generate correspondingly less noise. Actually, while the power and average noise ...

16. Positive Versus Negative Logic
(MyBlog/TB-Articles)

... 5). Figure 5. The physical mapping of a PMOS gate. Circuits constructed using the original PMOS transistors typically made use of a negative power supply; that is, a power supply with a 0V rail and ...

17. Zener Diode Tester - A tap on the knee
(MyBlog/TB-Tech-Tips)

... current limiter. VR1 is then adjusted until the LED D10 illuminates to indicate that current is flowing, when the test voltage may be read. The circuit operates from a mains power supply. To measure diodes ...

18. Actel Space Forum Lands in Israel
(MyBlog/TB-Blog)

... of how to optimize space applications using Actel FPGAs for high-reliability, high-performance, and low-power applications. Two of the things I'm really interested in are FPGAs and Spaceflight, so I wish ...

19. Analysis: M14K and M14Kc MCU cores
(MyBlog/TB-Reviews)

... and M14Kc offer significant advantages in cost, power, and performance.  However, MIPS must overcome ARM’s big head start in 32-bit MCUs. Review: The new M14K and M14Kc cores are strong entries into the ...

20. Synopsys and CoWare tie the knot. Virtual Prototyping on fire!!
(MyBlog/TB-Blog)

Boy – What a week for the virtual prototyping market. First, Synopsys acquires VaST, Days later Intel acquires Virtutech through its Wind River division and now today Synopsys has also acquired CoWare. ...