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Current mirror

Current mirror is inevitable part of input stage of operational amplifiers. Current mirror behaves almost as perfect cu...
0 comments posted 11yrs
posted by pchung705
0 comments posted 11yrs posted by pchung705

Measured Power: Dissipated or Undissipated?

Is measured current dissipated or undissipated current? In other words, is measured power "true power" or "imaginary po...
3 comments posted 11yrs
posted by rb.rb642
3 comments posted 11yrs posted by rb.rb642

Automotive relay question

I have a 12V SPST cube relay in my junque box. The diagram molded into the which looks suspiciously like a resistor. (u...
17 comments posted 11yrs
posted by invalid
17 comments posted 11yrs posted by invalid

Power factor correction circuits

Power factor correction circuits are essential part of modern household power supplies. These circuit have a feature of...
0 comments posted 11yrs
posted by pchung705
0 comments posted 11yrs posted by pchung705

UHF reception relay

I am thinking of building some sort of device that can recieve DTV signals, amplify them, and transmit them downward. T...
19 comments posted 11yrs
posted by kpgpbhdw
19 comments posted 11yrs posted by kpgpbhdw

Making "Star Trek" Type "Replicators" Reality

Making "Star Trek" Type "Replicators" Reality A way to create a Star Trek type replicator might be to create a "3D prin...
0 comments posted 11yrs
posted by rb.rb642
0 comments posted 11yrs posted by rb.rb642

Voltage mode control and One cycle control

Voltage mode control is not as fast as current mode control, but it is applicable in wider load range. One cycle contro...
1 comments posted 11yrs
posted by pchung705
1 comments posted 11yrs posted by pchung705

HID ballasts: AC or DC?

Some of the vendors of automotive HID light conversion kits are saying that AC voltage ballasts are superior to DC ball...
8 comments posted 11yrs
posted by fbt
8 comments posted 11yrs posted by fbt

Tripp-Lite PV1250RC. Radio Control

As I understand it, there is a remote module, which is for use when it is difficult to reach the inverter. Any details a...
0 comments posted 11yrs
posted by wolftracks
0 comments posted 11yrs posted by wolftracks

Current mode control

Current mode control is the fastest control method for switching mode power supply since it has to feedback loops. Read...
0 comments posted 11yrs
posted by pchung705
0 comments posted 11yrs posted by pchung705

Step-down transformer backward?

I have this transformer: http://www.signaltransformer.com/sites/all/pdf/M4L.pdf model M4L-2-10, 210/230/250 primary wit...
21 comments posted 11yrs
posted by fbt
21 comments posted 11yrs posted by fbt

How to disassemble this rice cooker?

I suspect it's just a thermal fuse gone. But I can't for the life of me get it open. http://www.newegg.com/Product/Prod...
11 comments posted 11yrs
posted by bespoke
11 comments posted 11yrs posted by bespoke

FTR

FTR Media Service is a registered media agency which is providing the media services like Advertising, Event Management...
0 comments posted 12yrs
posted by mehwish.abbasi84
0 comments posted 12yrs posted by mehwish.abbasi84

Replacing a 3ph motor with single phase

I need to provide jog function on a machine (run the motor for a few seconds under load) without use of VFD**. It was d...
12 comments posted 12yrs
posted by invalid
12 comments posted 12yrs posted by invalid