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[로봇사이언스몰][Pololu][폴로루] Pololu Dual G2 High-Power Motor Driver 24v14 Shield for Arduino #2516
This shield makes it easy to control two high-power DC motors with your Arduino or Arduino-compatible board. Its twin discrete MOSFET H-bridges support a wide 6.5 V to 40 V operating range and are efficient enough to deliver a continuous 14 A without a heat sink. The drivers offer basic current sensing and current limiting functionality, and they accept ultrasonic PWM frequencies for quieter operation. The Arduino pin mappings can all be customized if the defaults are not convenient, and the motor driver control lines are broken out along the left side of the shield for general-purpose use without an Arduino.
Absolute max | 30 V | 40 V | ||
Max nominal | 18 V | 28 V | ||
Max continuous | 22 A | 18 A | 18 A | 14 A |
Default active current- | 60 A | 50 A | 40 A | |
Current sense | 10 mV/A | 20 mV/A |
The minimum operating voltage for all four versions is 6.5 V. The maximum operating voltages are given in the above table; they are well above what typical Arduinos can tolerate, so the shields include an integrated 7.5 V, 1 A switching step-down regulator that can optionally be used to power whatever Arduino or Arduino-compatible board it is plugged into, enabling operation from a single power supply. This regulator can also be configured to output 5 V for applications where that would be more useful than the default 7.5 V, and the Arduino pin mappings can all be customized if the defaults are not convenient.
These dual motor drivers are also available as Raspberry Pi expansion boards. For single-channel versions in a more compact form factor, consider our High-Power Motor Drivers. For a lower-power, lower-cost alternative Arduino shield, please consider the Dual MC33926 Motor Driver Shield.
This motor driver board ships with all of the surface-mount parts populated. However, soldering is required for assembly of the included through-hole parts. The following through-hole parts are included:
A 0.1″ shorting block (for optionally supplying shield power to Arduino) is also included.
You can solder the terminal blocks to the six large through-holes to make your motor and motor power connections, or you can break off a 1×12 section of the 0.1″ header strip and solder it into the smaller through-holes that border these larger holes. Note, however, that the terminal blocks are only rated for 16 A, and each header pin pair is only rated for a combined 6 A, so for higher-power applications, thick wires should be soldered directly to the board, and appropriately high-current connectors (like these) should be used.
When not using this board as an Arduino shield, you can solder the 0.1″ headers to the logic connections along the left side of the board to enable use with custom cables or solderless breadboards, or you can solder wires directly to the board for more compact installations. Note that motor and motor power connections should not be made through a breadboard.
The motor driver includes six 100 µF or 150 µF electrolytic power capacitors, and there is room to add additional capacitors (e.g. to compensate for long power wires or increase stability of the power supply). Additional power capacitors are usually not necessary, and no additional capacitors are included with this motor driver.
The two mounting holes are intended for use with #4 screws (not included).
The driver’s current sense pins, M1CS and M2CS, output voltages proportional to the motor currents while the H-bridge is driving. The output voltage is about 10 mV/A for the 18v22 version and 20 mV/A for the other versions, plus a small offset, which is typically about 50 mV.
The driver has the ability to limit the motor current through current chopping: once the motor drive current reaches a set threshold, the driver goes into brake mode (slow decay) for about 25 µs before applying power to drive the motor again. This makes it more practical to use the driver with a motor that might only draw a few amps while running but can draw many times that amount (tens of amps) when starting. You can lower the default current limit threshold by connecting an additional resistor between the VREF pin and the adjacent GND pin.
See the user’s guide for more information on current sense feedback and current limiting.
The MOSFETs can handle large current spikes for short durations (e.g. 100 A for a few milliseconds), and the driver’s current chopping will keep the average current under the set limit. The peak ratings are for quick transients (e.g. when a motor is first turned on), and the continuous rating is dependent on various conditions, such as the ambient temperature. PWMing the motor will introduce additional heating proportional to the frequency. The actual current you can deliver will depend on how well you can keep the motor driver cool. The driver’s printed circuit board is designed to draw heat out of the MOSFETs, but performance can be improved by adding a heat sink or air flow. For high-current installations, the motor and power supply wires should also be soldered directly instead of going through the supplied terminal blocks, which are rated for up to 16 A.
There are four versions of the single-channel G2 high-power motor drivers that share compatible pinouts, and four versions of the dual-channel G2 high-power motor drivers that share compatible pinouts. The dual-channel drivers have the form factor of an Arduino shield, but they can also be used with other controllers as general-purpose motor drivers. The following table provides a comparison of the G2 drivers:
Pololu G2
High-Power Motor Drivers |
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Motor |
Name |
Absolute max |
Max nominal |
Max continuous |
Default active |
1 |
G2
High-Power Motor Driver 18v25 |
30 V |
18 V |
25 A |
60 A |
G2
High-Power Motor Driver 18v17 |
17 A |
40 A |
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G2
High-Power Motor Driver 24v21 |
40 V |
28 V |
21 A |
50 A |
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G2
High-Power Motor Driver 24v13 |
13 A |
30 A |
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2 |
Dual
G2 High-Power Motor Driver 18v22 Shield |
30 V |
18 V |
22 A |
60 A |
Dual
G2 High-Power Motor Driver 18v18 Shield |
18 A |
50 A |
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Dual
G2 High-Power Motor Driver 24v18 Shield |
40 V |
28 V |
18 A |
50 A |
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Dual
G2 High-Power Motor Driver 24v14 Shield |
14 A |
40 A |
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Size: | 2.56″ × 2.02″ × 0.38″1 |
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Weight: | 18 g1 |
Motor channels: | 2 |
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Minimum operating voltage: | 6.5 V |
Maximum operating voltage: | 40 V2 |
Continuous output current per channel: | 14 A3 |
Current sense: | 0.020 V/A |
Maximum PWM frequency: | 100 kHz |
Minimum logic voltage: | 1.8 V |
Maximum logic voltage: | 5 V |
Reverse voltage protection?: | Y |
PCB dev codes: | ash06d |
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Other PCB markings: | 0J10698, blank white box |
User’s manual for the Pololu Dual G2 High-Power Motor Driver Shields for Arduino.
b. 해외상품 :
1) 해당상품: 아이콘이 부착된 상품
2) 구매금액 700,000원 이상 : 입금확인 후 최소 5일 ~ 최대 2주
3) 구매금액 700,000원 이하 : 입금확인 후 최소 1주 ~ 최대 8주
4) 단, 해외계약업체에 품절되지 않은 상품에 한함
② 구매상품 종류가 많을 경우 예상 준비기간 보다 더 소요 될 수 있습니다.
③ 주문하신 상품은 출고완료 메일 또는 문자 수신 후 익일~최대7일(도서,산간지역)
이내에 수령하실 수 있습니다.
④ 제주(\3,500원)/도서지역(\5,000원)은 배송비가 추가됩니다.
제주,도서, 산간지역은 타 지역보다 배송기간이 길어질 수 있습니다.
⑤ 아이콘이 부착된 상품이라도 국내재고가 있을 수 있습니다.
⑥ 해외 현지 사정으로 인해 공지한 배송기간보다 더 길어 질 수 있습니다.
⑦ 해외상품은 반품/교환/취소가 어려울 수 있으니 신중히 주문하시기 바랍니다.
3. 소비자의 단순변심/착오구매에 의한 청약철회제한안내
① 전자상거래 등에서의 소비자보호에 관한 법률 제17조 제2항 및 동 시행령
제21조에 의한 청약철회 제한 사유에 해당하는 경우 및 기타 객관적으로
이에 준하는 것으로 인정되는 경우에 한합니다.
② 소비자의 단순변심, 착오구매에 의한 교환/반품 시에 발생하는 배송비는
소비자가 부담합니다.
③ 판매자의 실수,제품하자 등의 사유로 인한 배송비는 판매자가 부담합니다.
4. 상품의 교환/반품/보증조건 및 품질보증기준안내
① 상품이 공급된 날(배송완료일)로부터 7일 이내에 교환/반품을 신청 할 수 있습니다.
그러나 아래의 사유에 해당 하는 경우에는 교환/반품 신청이 받아들여지지 않을 수도 있습니다.
a. 소비자의 책임으로 인해 상품이 훼손/멸실 된 경우(확인을 위한 포장훼손제외)
b. 소비자의 사용에 의해 상품의 가치가 현저하게 감소한 경우
c. 시간의 경과로 인해 상품의 재판매가 불가하게 된 경우
d. 판매방식의 특성으로 판매자에게 회복할 수 없는 피해가 발생한 경우 (주문제작 상품, 청약철회상품 등)
② 교환/반품/보증조건 및 품질보증기준은 『소비자기본법』에 따른 소비자분쟁해결기준에 따라 피해를 보상합니다.
5. 소비자피해보상 처리, 재화 등에 대한 불만 및 분쟁처리 안내
판매자 | 본사 | 셀러등급 | |
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상호명 | (주)위키모바일(로봇사이언스몰) | 대표자 | 김경식 |
사업자등록번호 | 215-87-14086 | 통신판매신고번호 | 제2008-서울송파-0867호 |
연락처 | 02-2283-1300 | 사업장 소재지 | 서울특별시 송파구 문정동 643-1 엠스테이트 B동704호 |
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회사명 : (주)위키모바일(로봇사이언스몰)
| 사업자등록번호 : 215-87-14086 [사업자정보확인]
| 주소 : 서울특별시 송파구 법원로 114 엠스테이트 B동704호 통신판매업 신고 : 제2008-서울송파-0867호 | 연락처 : 02-2283-1300 | FAX : 02-2283-1304 | 개인정보보호 책임자 : 김 경식 | 대표자 : 김경식 호스팅사업자 : 가비아 퍼스트몰 | contact : ask@wikimobile.co.kr for more information *로봇사이언스몰의 콘텐츠 저작권은 (주)위키모바일에 있으며 무단·전재·복사 배포를 금합니다. |
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