What is the function of the rectifier for brake motors?

The role of the rectifier:

Turning alternating current (AC) into direct current (DC),

After filtering, it supplies the load, perhaps to the inverter;

2.supply the charging voltage to the battery. It also plays the role of a charger.
In short, a rectifier is a rectifying device, which converts AC into DC.

The role of a rectifier
A rectifier is a device that converts alternating current into direct current and is used in power supply equipment and for detecting radio signals.

Rectifiers can be made from vacuum tubes, pilot tubes, solid-state silicon transistors, mercury arcs, etc. In contrast, a set of devices for converting direct current into alternating current is called an 'inverter'.

In a standby UPS only the batteries need to be charged, not the load, so only the charger is required.

In a double conversion UPS, this equipment both supplies the inverter and charges the battery, so it is called a rectifier charger.

The industry is now introducing energy saving lamps and electronic ballast transistors with a strong focus on storage time control.

An inductive ballast is an inductive coil with an iron core.

The nature of the inductor is that when the current in the coil changes, it causes a change in the magnetic flux in the coil, which then generates an induced electric potential, the direction of which is opposite to that of the current, thus preventing the current from changing.

The primary application of the rectifier is to convert the mains supply into a DC supply.

All electronic devices need to use DC, but the power supply from the electricity company is AC.

The power supply from the electricity company is AC, so unless batteries are used, the power supply of all electronic devices

Unless batteries are used, rectifiers are essential in the power supply of all electronic devices.

Please check from the electric motor manufacturer as below to get more information about electric motor ;