constant-voltage

In general, a constant-voltage charging method cannot be used for automatic charging.

One problem with high power, high current transformers is that fewer can be used on a single constant-voltage line.

Load regulation of a constant-voltage source is defined by the equation:

The loudspeaker step-down transformer primary is connected in parallel to the constant-voltage line.

So if the lamp is connected directly to a constant-voltage source like the power lines, the current through it will increase until it destroys itself.

Constant-voltage charging is the preferred method, however other methods can be successfully used if the voltage is controlled.

A metadyne can convert a constant-voltage input into a constant-current, variable-voltage output.

Connected directly to a constant-voltage power supply, a fluorescent lamp would rapidly self-destruct due to the uncontrolled current flow.

Stage 2 is called the U-phase, constant-voltage boost stage, absorption stage, or topping charge.

The main advantages of using a constant-voltage speaker system over a conventional low impedance speaker system are:

The current drawn by typical constant-voltage energy distribution systems is usually dictated by the power (watts) consumed by the system and the operating voltage.

When fed a constant-voltage signal (or when the input is removed completely), the output will "idle" and produce a stream of alternating 1s and 0s.

Constant-voltage speaker systems are analogous to electrical power transmission methods employed by power companies to transmit electrical power over long distances.

More sensitive: Since constant-voltage systems operate at relatively high impedances, they are more sensitive to small amounts of leakage current and partial short circuits.

Constant-voltage transformer (also called the ferroresonant transformer or CVT)

Constant-voltage charging is the usual, most efficient and fastest charging method for VRLA batteries, although other methods can be used.

Tustin has shown that the input and output power are the same, and so the machine transforms the constant-voltage input into a constant-current output.

Some models can be configured so that one channel drives one or two low impedance 8-ohm speakers while the other drives a constant-voltage string of speakers.

Voltage Source Inverters (VSI) feed the output inverter section from an approximately constant-voltage source.

If a suitable battery charger is not available, constant-voltage or constant-current charging can be done 'manually', at a moderately high charging rate, if careful attention is given.

Since most common power sources (batteries, mains) are constant-voltage sources, most LED fixtures must include a power converter, at least a current-limiting resistor.

The ferroresonant transformer, ferroresonant regulator or constant-voltage transformer is a type of saturating transformer used as a voltage regulator.

If such a device were connected to a constant-voltage power supply, it would draw an increasing amount of current until it was destroyed or caused the power supply to fail.

All TSX series PSUs can operate in both constant-voltage and constant-current modes, with automatic crossover and automatic mode indication.

During a demonstration at an industrial exposition in Vienna in 1873, Gramme accidentally discovered that this device, if supplied with a constant-voltage power supply, will act as an electric motor.