Control Motor Power: 0.01-5000W. 12V: 1200W(max), 24V: 2400W(max) , 36V: 3600W(max), 48V: 4800W(max). There is one ON/OFF switch on the controller. The power switch is on, the controller is powered on. The power switch off, the motor will be brake.The reversal switch is on the hand twist, "F" is forward, "R" is backward. When you twist the hand throttle, the motor will accelerate. Reversible DC Motor Speed Controller.
Please check pictures for more details. Pulse-width modulation (PWM) is a modulation technique used to encode a message into a pulsing signal.
Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load. The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible.
Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies. The term duty cycle describes the proportion of \'on\' time to the regular interval or \'period\' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on. The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there being practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch.
Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle. Customer service is our top priority!Please be sure to read the description thoroughly to make sure that this is the item you want before making a purchasing decision. We make every effort possible to accurately describe and depict the items. Please be aware that slight variations in color may be due to differences in lighting and computer monitor resolutions. Thank you for shopping with us.
(except for the excluded countries). Only factory defects are accepted as a reason for a return. In the case of factory defects, if available, we will replace the product for you. When returning an item, it must be in all of the original packaging and include all of the original accessories or items that came with it.The item and package should be in original and perfect condition. We do our best to process as quickly as possible. Orders are processed immediately and dispatched to fulfillment as soon as they are received. For this reason, we are typically unable to honor cancellation requests.
If the order has gone too far through the fulfillment process, we will be unable to cancel. The item "Reversible DC PWM Motor Speed Controller Hand Twist Grip Hall Throttle 10-50V" is in sale since Sunday, May 19, 2019. This item is in the category "Business & Industrial\Automation, Motors & Drives\Drives & Starters\Drives & Motor Controls\Speed Controls". The seller is "smart_buy24" and is located in Shanghai. This item can be shipped worldwide.