10-50V 40A DC Motor Speed Control PWM HHO RC Controller 12V 24V 48V 2000W

Description

12V 24V 48V 40A 2000W DC Brush Motor Speed Control PWM HHO RC Controller
9.99 USD
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DC 40A DC Motor Speed Control Reversible PWM Controller 12V 24V 36V 48V 2000W
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10-50V 60A DC Motor Speed Control PWM Controller 12V 24V 36V 48V 3000W ESC
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Product Feature:
Power Requirement
DC 10-50 V
Rated Current
40 A (Maximum Output Current)
Frequency
12000 Hz
Control Motor Power
0.01-2000 W
12 V: 480 W (max), 24 V: 960 W (max)
36 V: 1440 W (max), 50 V: 2000 W (max)
Regulation Range
5-100%
PCB Size
90 x 51 mm (inch: 3.5" x 2")
Case Size
105 x 55 x 40 mm (inch: 4" x 2.2" x 1.6")
Weight
130 g
Please check pictures for more details.
Package list:
1 X DC Motor Speed Controller
What is the PWM?
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.
On Feb-07-20 at 20:31:02 PST, seller added the following information: