The only trouble is, though many of our appliances are designed to work with AC, small-scale power generators often produce DC. That means if you want to run something like an AC-powered gadget from a DC car battery in a mobile home, you need a device that will convert DC to AC—an...
aknow who i love when drunk,and know who love me when in trouble 知道谁我爱,当喝时,并且知道谁爱我,当在麻烦[translate] aend frames (den wall panes,top and borrom rails) 末端构筑 (小室墙壁单块玻璃、上面和borrom路轨)[translate] aRestore Original Factory Settings 恢复原始的工厂设置[translate]...
The diode is a semiconductor device including two terminals. The main function of the diode is to allow the current flow only in one direction and it is used in different applications likeclippers and clampers, rectifiers, etc. The diode testing is mainly done to identify its working conditions...
On any given day Rob gets trouble calls ranging from nuisance issues to potential catastrophic failures. Starting with the basics Motor and drive problems are the most common calls. "Normally your first check is to do an insulation check on the motor and wiring ...
What’s more, once armed with this knowledge, you’ll be better equipped to troubleshoot amplifier problems and to improve your guitar tone. Tubes (called valves in other parts of the world) can be divided into three families: preamp, poweramp and rectifier. Each family comprises a range ...
Figure 2: Variable frequency drives use input rectifiers, direct current capacitors, and insulated gate bi-polar transistors to send pulse width modulation to the external alternating current motor. Courtesy: Yaskawa America Inc. Note the similarities to the VFD in the ECM in Figure 3. Most of ...
To conclude, trouble-free operation of a current transducer requires limiting the temperature rise to avoid overheating the internal components. Parameters affecting temperature rise go beyond core losses and include the primary busbar resistive losses, the losses of the electronics and the various ...
The goal is to find a transformer that can output a maximum supply voltage close to the maximum supply voltage needed by your amplifier. A transformer’s voltage rating only tells you its AC voltage output. The DC voltage you’ll get after the bridge rectifiers on the power supply convert ...
can be used as a work bench power supply. It gives 12 volts, 9 volts and 5 volts regulated DC to power prototypes while testing or trouble shooting. It also has a battery back up to continue the work if power fails. Low battery indication is also provided to confirm the battery status...
Each machine is run by coordinated drive systems with about 12 drives and motors plus auxiliary equipment that adds another 100 motors or so to each machine. The motors range from a half horsepower to a 6000 horsepower behemoth. "I troubleshoot everything from v...