admin

28
Jul

First fully-integrated Thunderbolt™ DC/DC power solution fuels bus-powered applications

Texas Instruments today expanded its industry-leading Thunderbolt™ portfolio with the TPS65980 DC/DC switching regulator, the first fully integrated power solution for bus-powered Thunderbolt™ applications. The TPS65980 is the centerpiece of TI’s certified Thunderbolt™ single port peripheral reference design, simplifying the power chain and speeding the design of bus-powered applications, such as hard drives, solid state drives and audio and video

Read more

28
Jul

Rohm aims ‘smallest diode’ at wearables

Rohm has taken discrete semiconductor and passive component miniaturisation to a new level. The company has produced chip resistors in 03015 (0.3 × 0.15mm) size as well as Schottky barrier diodes in 0402 (0.4 × 0.2mm) size. The devices make use of a proprietary process called Rohm advanced smart micro device technology. Rohm says this is possible because its packaging

Read more

28
Jul

Rohm aims ‘smallest diode’ at wearables

Rohm has taken discrete semiconductor and passive component miniaturisation to a new level. The company has produced chip resistors in 03015 (0.3 × 0.15mm) size as well as Schottky barrier diodes in 0402 (0.4 × 0.2mm) size. The devices make use of a proprietary process called Rohm advanced smart micro device technology. Rohm says this is possible because its packaging

Read more

28
Jul

DC Power Transmission: War of Currents compromise

Are we having another War of Currents? Nikola Tesla and Thomas Edison were two of electrical history’s most influential energy-related engineer/inventors. Their battle in the 1880s brought about controversy of AC vs. DC power transmission (See my article on EDN). Of course we all know how that turned out when we turn on a light in our home or even

Read more

28
Jul

Toyota subsidiary to expand hybrid car battery production

Nagoya: Toyota Motor Corp. subsidiary Primearth EV Energy Co. Tuesday said it will increase its production capacity for nickel metal hydride batteries used in hybrid cars. To meet increasing demand for fuel-efficient cars, the Shizuoka-based subsidiary will expand its production capacity at its plant in Miyagi Prefecture in northeastern Japan, to 500,000 cars worth of rechargeable batteries from the current

Read more

28
Jul

Calibrate Manually (4) – Discharge Current

Discharge Current Calibration Step1. Select the right device and right channel under “device list”  Step2. Select the DC-Seg1 to calibrate Discharge current.  Step3. Click “Run”, the machine will be calibrated at the first measuring point.  Step4. Use a multimeter(here we use FLUKE 187) to measure the current, input the measure current after “Multimeter Value”.    Step5. Click “Input”.  Step6. Again

Read more

28
Jul

Calibrate Manually (3) – Discharge Voltage

Discharge Voltage Calibration Resistance  ≥ (2~10) X Full Scale Voltage(V)/ Full Scale Current(A)  Power of Resistance  ≥ Full Scale Voltage(V)*Full Scale Voltage(V)*/ Resistance(Ω)  Range of Constant-current source  ≥ Full Scale Current(A)  Constant-current source have to execute two workstep,step current are10% and 90% of Full Scale Current(A)of the device.  Step1. Select the right device and right channel under “device list”  Step2.

Read more

28
Jul

Calibrate Manually (2) – Charge Current

Charge Current Calibration Note: If the current range of the BTS device doesn’t reach the top-limit current of the multimeter, then connect multimeter directly with the channel you are going to calibrate like the following picture: But if the current range of the BTS device is over the top-limit current of the multimeter, then you should add a shunt in

Read more

28
Jul

Calibrate Manually (1) – Charge voltage

Preparation: Connect the machine to computer with Ethernet port(Ethernet version) or Serial port(serial port version).  Power on the machine, make sure the “BTS-TC” is shut down already and then execute the calibration software “BTS-Calibration” (These two can not run simultaneously).  Wait until the computer finds the machine and displays the machine’s information. (If the computer can not find it automatically,

Read more

28
Jul

Desktop PCB factory turns your design into a working circuit in 30 minutes

What would you do if you could turn the schematic you sketched on the back of a napkin during your lunch break into a fully-assembled circuit before your afternoon coffee break? What would you do if you could print a circuit which monitored your vital signs onto a flexible circuit board which could be easily sewn into your workout clothes?

Read more