For a home pet project I want to wire up an electro motor to a Raspberry Pi. I want to constantly reverse the direction of the motor (meaning I want to be able to change the direction of the motor about every second). As far as I understand this can only be done with brushed DC electro motors. Since I need quite some power, I was thinking of buying
this electro motor, which is described as:
200W DC motor is reversing 24V speed control motor 1800 rpm high torque micro motor
2. Battery pack
I then want to wire it up to this LiPO battery pack, which has the following description:
Output voltage:12V-24V Input voltage: 12.6V Input current: 1AH-2AH Output current: Max. 6AH Output power: Max. 110WH Material: Li-polymer for PHILIPS 2900MAH batteries Capacity: 52000MAH(3.7V)
@MarceloEspinozaVargas told me in his answer that the battery pack has a regulator which is too weak. So how about I buy two of these battery packs (2*12V), serially linking them up so that I get 24V, and then using this regulator, which says it is a
DC-DC Automatic Boost Buck Converter 8V-30V to 2V-16V 6A 80W CC/CV Voltage Regulator charging 5v 12v 24v 19v Car power supply. Would that work you think?
I then want to use this H-bridge for reversing the motor direction, which comes with the following info (description below picture):
Double BTS7960 43A H-bridge High-power Motor Driver module: BTS7960B H-bridge 43A high-power motor driver Module Overview: This driver uses chips BTS7960 composed of high-power drive full H-bridge driver module with thermal over-current protection. Double BTS7960 H-bridge driver circuit, with a strong drive and braking, effectively isolating the microcontroller and motor driver! High-current 43A Features: Double BTS7960 large current (43 A) H bridge driver; 5V isolate with MCU, and effectively protect MCU; 5V power indicator on board; voltage indication of motor driver output end; can solder heat sink; Just need four lines from MCU to driver module (GND. 5V. PWM1. PWM2); isolation chip 5 V power supply (can share with MCU 5 V); size: 4 * 5 * 1.2 cm; Able to reverse the motor forward, two PWM input frequency up to 25kHZ; two heat flow passing through an error signal output; isolated chip 5V power supply (can be shared with the MCU 5V), can also use the on-board 5V supply; the supply voltage 5.5V to 27V;
Before spending the money on it, I want to be sure that this combination will actually work. I mean; does that seem like a good battery pack for that motor, and can the H-bridge I link to handle the power going through? I see the H-Bridge says
I'm just a bit insecure about spending all this money when it's not going to work. So all tips are welcome!