Why does a transformer require ac? Transformer: A transformer is a device normally used to step up or down AC power and rarely to isolate circuits. The principle of operation of a transformer is mutual inductance between the electrically separate input and output coils. Answer and Explanation: ...
contactors with AC coils, the pull-in time isn't well synchronized -- the switching time has a large variance due to fumbling and friction), so you'll see a transformer sometimes do nothing at all, just click and it's on like nothing happened, and other times ...
Diodes only work as diodes if they have current flowing through them. If you take the AC output of a transformer and feed it through a bridge rectifier with the DC side of the rectifier an open circuit then you will get very unpredictable voltages. Basically the diodes in the rectifier can...
There is some reason, related to how a multimeter works, that means that the batteries/fuses need to be very securely inside the case, and which a separate compartment with an access door would not satisfy. But I have no idea what this reason would be. It would cost more to design & ...
and if it needs to rectify the output from a transformer, which is fairly common, then the more efficient way is to use a dual winding and just two Schottky diodes in a full wave rectifier configuration, not a four diode bridge rectifier, because that way you only have to deal with one...
Controlling the speed by a variation of the voltage using an transformer or a AC-Controller:very cheap and only suitable for small motors with fan or pump loads, special motors with high resistance rotors required, for this type of drive stalling is an issue !Controlling the speed by ...
transformer. The transition between the various metals used in a power cable and its connectors can cause electromagnetic reflections and diode-like rectification of the noise impulses as they propagate away from the power supply. If the power cable presents a high impedance to these signals they ...
The story isn't over. Since you've made a change to your system, Murphy's Law crops up and informs you that for every problem that you cure, another one is created. Before you "grounded" your system, the AC voltage in general acted pretty safe for your customers. The only way they...
aYou want to be a slut in my mind, a good girl in my life, a tender maiden in my appearance and a Transformer in my heart. 您在我的生活中在我的出现上在我的心脏依我所见想要是荡妇,一个好女孩,嫩未婚和一台变压器。[translate]
Overall, the circuit shown in Figure 2-1 allows for the control of a high-voltage half-bridge using only a low-side gate driver IC, a transformer, and some extra components. There is no need for level-shifting, isolator ICs, or a bias supply as the gate drive transformer fulfills all...