If it’s a DC motor used as a generator, it will produce DC. The coils in the armature carry AC, but the commutator rectifies that to DC at the terminals. magnetic field. Even a generator, DC or AC, cannot produce … Continue reading →

➨Choppers are inadequate due to unsteady voltage and current supply. ➨Disadvantages of fly-back type: More EMI due to gap, More ripple current, More input/output capacitance, higher losses etc. What are the advantages of chopper? DC chopper device has the advantages … Continue reading →

USB-C supports older versions of the HDCP copy protection standard, but cannot yet handle the latest HDCP 2.2 standard. Only HDMI can currently do that. You’ll still need HDMI cables to support “legacy” devices which weren’t built with USB-C ports … Continue reading →

If a device rated for 5v is connected to a 12v supply, some of the components may get burnt or damaged due to over current. If the applied voltage to equipment is more than its maximum rated voltage, the equipment … Continue reading →

The most common fault that makes it obvious for you to think it is burnt is the capacitor. With the smell, and sometimes the liquid electrolyte from the busted capacitor draining through. If you are lucky enough and it’s just … Continue reading →

Plug in your wireless USB adapter to an available USB port on your computer. If your wireless adapter comes with a USB cable, you may plug one end of the cable to your computer and connect the other end on … Continue reading →

When getting started with drilling into metals, you can choose any type of drill. Most people assume that drilling through metals requires the use of a high power, industrial grade drill or a drill press. In reality, you can get … Continue reading →

What is the difference between a 12V relay and a 5V relay? The voltage ratings are what the coil needs to energize properly. The 12V coil will likely have a higher resistance than the 5V coil. Coil resistance, voltage and … Continue reading →

A resistor resists current flow, regardless of whether that current is direct (DC) or alternating (AC). Any resistor type will work with 220V AC (as long as its voltage rating is not exceeded) but what’s important is the power, which … Continue reading →

Resistors don’t reduce current and voltage instead it opposes flow of current and produce drop in voltage across the terminals. Do resistors decrease amperage? A higher resistance results in a lower amperage. The resistance of a resistor is measured in … Continue reading →

Since 12V lead-acid batteries were originally designed for cars, there is a lot stuff that runs this way. 18V would be risky, I would not try to plug a 12V device into an 18V battery. But if you happen to … Continue reading →

12 volts DC is not a shock hazard. You can’t touch the wires in your 120V AC household electrical system without getting a nasty, dangerous shock, but you can touch bare wires carrying 12V DC in your car, even lay … Continue reading →

What is the switch on power supply? This switch is used to set the input voltage to the power supply to either 110v/115v or 220v/230v. In other words, it’s telling the power supply how much power is coming from the … Continue reading →

Place the sealed battery inside the freezer and leave it overnight or at least 12 hours. By exposing the battery to low temperatures such as the inside of a freezer, it allows the battery cells to recharge a little, enough … Continue reading →

Any switched-mode power supply that gets its power from an AC power line (called an “off-line” converter) requires a transformer for galvanic isolation. How does a switched-mode power supply work? In switching power supply designs, the input voltage is no … Continue reading →