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SCR's are mainly used in AC circuits. They could be used in DC circuits but they then would not be able to turn off. They require the zero crossing of the AC circuit to turn off. Then when positively biased they can be turned back on.

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Can you use an AC Dimmer Switch on a DC fan?

No, an AC dimmer switch is designed to work with AC-powered devices, not DC. DC fans require a different type of dimmer switch specifically rated for DC power. Using an AC dimmer switch on a DC fan can potentially damage the fan or the switch itself.


Does a computer use AC or dc power?

Both, in a way. Electronic components, including moth components inside the computer, need DC. However, since the power available in homes or offices is AC, a computer is designed to work with this. A computer has a power supply that internally converts AC to DC.


Is fluorescent lights fixtures ac or dc?

The basic fluorescent light fixture is AC, although there are fluorescent lights powered by DC.


Does ac dc mean it can run on battery or plug into wall?

AC - Alternating Current, same thing that comes out of a wall socket DC - Direct Current, batteries. <<>> When a device has AC/DC on its name plate, it can work off either of the two voltages. Many portable radios have this function. When the radio is plugged into AC, the voltage is transformed to the working DC voltage and then rectified to a DC voltage. When the radio is on battery operation, the radio operated strictly from the DC voltage supplied by the batteries. The change between voltages from AC to DC or DC to AC is almost instantaneously. This change over is done through an AC powered relay in the radio. When the AC held in relay looses its supply it de energizes and switches over to DC power if the batteries are in the radio. With batteries in the radio try it. Plug into the AC supply, turn on the radio that has batteries installed in it, unplug the AC supply and the radio will not miss a beat.


If you plug an appliance designed for AC into a DC Power source the appliance?

Usually nothing good will happen. The appliance may not work or be damaged or overheat. Sometimes for small electronics, it will work fine. Many electronic devices have a rectifier that converts AC to DC, and DC will pass through and work fine. But other devices have transformers that will not work with DC input.

Related Questions

Is electronics device only work in direct current?

Electronics devices are work both AC and DC currnt . Such as Diode , SCR , Capacitor can work both AC and DC current . Espacilly voltage control circuits such as dimmer , and then voltage rectifier circuits , means power suppy circuts and so on.


When you connect a full-wave SCR circuit to a 60Hz AC supply how many DC pulastions will you get?

120


Can DC series motor work on ac and DC and why?

A dc series motor can work on dc and ac because dc motors are totally reversible.


How does DC to ac power supply work?

If having DC and AC is required then a PWM pulse width modulator is required to chop the DC to make AC


What is SCR in drilling rig?

It is a silicon-controlled rectifier, converting AC to DC for use in drawworks, mud pumps, etc.:silicon-controlled-rectifier


Why scr is used in ac or dc voltage regulator?

The only use of an SCR in a powersupply regulator that I know of is a Crowbar protection circuit to force the breaker to pop if the regulation fails and the powersupply output voltage rises too high.


Do laptop work on ac or DC and how?

A laptop runs on DC. Either from the battery, or the external power supply, which converts AC power to DC.


Can a dc motor work in ac?

No it cant


How does auto transformer work with DC supply?

Transformers don't work with DC supplies - they only work on AC.


Does electrical transformer use a DC or AC source?

A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.


What instrument measures both ac and DC?

hot wire ammmeter or a moving iron ammeter will work for ac and dc.


Why do you still use both ac and DC?

Because some appliances work with ac current and some with dc current.