Double H bridge road positive &negative controller drives use is double-sided PCB, has the same is can double ways of output connection dc motor. Can meet all the way alone can also be two road and motor by motor. When operating each other is not affected, positive &negative switching mutual interference when does not exist

The wiring way as shown in figure 1,

(1) circuit board of motor is 1 dc motor of the positive connect with.

(2) circuit board of motor 1 negative and dc motor of the negative connect with.

(3) circuit board of motor 2 are and dc motor of the positive connect with.

(4) circuit board of motor and 2 defeats and dc motor of the negative connect with.

(5) circuit board of power supply and dc power of positive were positive.

(6) the anode and power circuit dc power anode connect with.

(7) circuit boards of J2 5 V and dc power 5 V connect with.

(8) circuit boards J2 GND and dc power supply of the negative connect with.

(9) PW1 and source of PWM1 connect with.

(10) PW2 and source of PWM2 connect with.

Single positive &negative connection mode

1) if you would like to achieve simple positive &negative functions can need not take full speed motor output PWM signal to the circuit board, the PWM1 interface PWM2 interface, which can be directly meet is 5 V control 1 take 5 V control 2 take 5 V, can realize both positive and negative transfer function. The way.

2) and also can be used separately all the way another without all the way. If you want to achieve the speed adjustment way, to circuit boards PWM1 interface PWM2 interface, control PWM signal sent by 1 5 V control 2 by 5 V, use of PWM duly ratio can realize dc motor of the positive &negative speed adjustment, and also can be used separately all the way to realize positive &negative speed adjustment.

3) the other has the brake function, braking circuit boards PWM1 signal PWM2 signal control 1 2 also take control signal, PWM2 anode or PWM1 signal, the control 1, control 2 state unchanged this is also can have a brake function. To realize comprehensive braking PWM signal to ensure that in another state PWM mouth to stop in the output state 0, specific PWM principle please reference HW-A-1040 video tutorial.

Pulse width modulation of all points WidthModulator, called: "because of its special PWM, performance, are used
In dc load loop, lamps and lanterns light or dc motor speed control, HW-1040 type B governor, is to use the pulse width
Modulation (PWM) principle of making motor governor, governor has been in: industrial PWM dc motor speed, industrial transfer
Belt speed regulation, lamplight illume mediation, the computer power supply, dc electric fans, such as heat used widely.

HW-A-1040 type B (DC12v24v voltage universal) governor, working principle: is through the change of the output pulse of empty
Than to keep the average load current power from 0 to 100% change, and change the load, lamp brightness/motor speed.

Using pulse width modulation (PWM) mode, realize light/speed regulation, it is the advantage of power energy power, can get fully
Use of the circuit, high efficiency. For example: when output for 50% of square wave, pulse width modulation (PWM) circuit output energy
Power also to 50%, almost all of the energy conversion to load.

And the common resistance step-down speed regulation, to make the load when get power supply 50% of the largest power, the power supply must be provided
More than 71% of the power output, the 21% of consumption in the pressure drop and heat resistance on consumption. Large cloth part in the electrical energy
Resistance is consumed on the left, the energy, the output is conversion efficiency is very low.

In addition HW-A-1040 type B because of the way the speed switch heat consumption hardly exists, HW-A-1040 type B speed regulation in low speed
Torque is very large, because governor with automatic tracking PWM, in addition the pulse width modulation (PWM) mode, can make
Load at work almost full power supply voltage, get this helps to overcome motor coil and inner resistance motor
Have a more torque power.

Note: do not meet the are aligned

Payment: you can use the bank card includes, industry and commerce bank, agricultural bank of bank of communications

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Bank of communications: 405512 1036 8777903 DingPing

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Agricultural bank of China: 622848 0170 2234 11712 DingPing

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