Is there a brush dc motor driven and no brush dc motor driven?
?The driver Driven, the DC dc-dc converter is required for the brush motor. You can use buck, boost, half a bridge. As long as the dc voltage can be adjusted, it can be. Even the 220V - > adjustable transformer - > rectifier. The 500W motors are small motors, not very powerful. So you can control the speed of rotation by just regulating it. The average speed band can be adjusted in a few seconds. Of course, if you have more than 5kW, or you need torque control, you have to control the current. The current control is a little more complicated, but the response is fast and the torque adjustment is sufficient for several milliseconds. The bandwidth is in the tens of milliseconds.
1. The difference between It's very different to have brushes and brushes. It's a lot easier to have a brush, and you can transfer it to a dc voltage. Brushless words power power electronic devices are needed to open and shut off voltage, and the need to according to the rhythm of the judgment of rotor position switch, control requirements are complex. To put it bluntly, brushless dc is essentially a square wave ac motor. But the control of the small brushless motor has matured, and all the fans in the computer have no brushes.
Isolation is electrical power, and there's nothing to do with motors. After all, it costs money, and if it's a 30, 50 volt circuit, it's ok to have a reasonable circuit design and no decoupling. If the voltage is higher, the voltage is decoupled. Personal advice. 4. Other. The 500W circuit loss is approximately 10 to 20 watts, which is related to your voltage and current level. If you want to do it yourself, it's a good idea. In addition circuit protection should be done well, electrical inductance and a rotating rotor. The inductance afraid of breaking, may produce a very high transient voltages, and the rotor produces a constant voltage, more afraid of short circuit, the two above energy if not good control, circuit is likely to explode.
