Robot Power MegaMoto Скачать руководство пользователя страница 2

Version 1.6 - May 28, 2012 

2

 

1.  Specifications 

 

Voltage Range 

6V – 24V (28V absolute max) 

Current (H-
bridge)

1

 

13A cont. at 100% duty cycle 
12A cont. at 70% 
30A - 5 second peak 

Plus 

20A cont. at 100% D.C. 
30A with fan 
40A peak – 5 seconds 

Current (each half-
bridge) 

Same as above 

Current (ganged 
half-bridge) 

Double above 

PWM frequency 

DC – 20kHz 

Current Sense 
Output 

Vc = I * 0.075 
Vc = .0.75 at 10A 
Vc = 2.99V at 40A 

Input voltage 
levels 

2.5V – 5.5V = logic high 
<1.7V = logic low 

Size 

2.1” x 2.9” x 0.5”  

Mounting  

3x - 4-40 or M2.5 bolts 

1.  Your actual current capacity will vary based on the type of load, the length and size of wires, power supply 

capability and other factors. 

 

2.  Input Output connections and Jumper Settings 

 
 

 

 

Figure 2. MegaMoto connections and jumpers

 

 
 

Содержание MegaMoto

Страница 1: ...gaMoto and MegaMoto plus are electrically identical Heatsinks have been added to the Plus to increase power handling All specifications input outputs and instructions except for current handling apply...

Страница 2: ...rent ganged half bridge Double above PWM frequency DC 20kHz Current Sense Output Vc I 0 075 Vc 0 75 at 10A Vc 2 99V at 40A Input voltage levels 2 5V 5 5V logic high 1 7V logic low Size 2 1 x 2 9 x 0 5...

Страница 3: ...nable and disable the MegaMoto There are four choices on this jumper block One and only one jumper must be placed on this block to choose the enable source Logic HIGH enables the unit Do not attempt t...

Страница 4: ...ense output to a different analog input pin See the application examples section for more details The current sense output is optional and need not be connected if monitoring of the load current is no...

Страница 5: ...ay be used for driving uni directional loads such as lamps heaters solenoids or DC motors in one direction The true half bridge configuration of the power MOSFETs in the power chips allow for efficien...

Страница 6: ...ode Example Figure 5 MegaMoto half bridge mode Function Jumper Notes Enable 5V Both power chips are always enabled and cannot be disabled via program control when the jumper is in this position PWMA D...

Страница 7: ...s slightly tricky to use because the power section of the power chips are joined together If the chips switch at different times there will be a short condition from chip to chip potentially destroyin...

Страница 8: ...mper block for each MegaMoto even if there are several units stacked Each unit s inputs are indpendent The MegaMoto requires an Enable signal a simple 5V connected to the input via the available jumpe...

Страница 9: ...be connected in parallel A secondary function of the current sense output is to indicate if the device has gone into protective shutdown The Arduino can monitor the current sensor voltage to detect sa...

Страница 10: ...age sources batteries or power supplies are used say one to power the Arduino and one to power the MegaMoto it is imperative that the connection between the negative terminals of the voltage source be...

Страница 11: ...y in the circuit to dissipate without the inductive voltage kick that often occurs on abrupt interruption of the load current When using a bench supply even switching from full speed to full stop may...

Страница 12: ...this document or for application advice please feel free to contact us We ll be happy to answer your questions and hopefully together we can make your project using the MegaMoto a big success You can...

Страница 13: ...s unit We make no claims as to suitability or fitness for any application or use The specifications listed for the unit are accurate to the best of our knowledge but are not guaranteed in any way The...

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