Zest_Actuator_HalfBridges
Overview
The Zest_Actuator_HalfBridges is an electronics development board for 6TRON opensource platform featuring four power half bridges to control any classical motor (Brushed DC, Brushless, and Stepper).
This board is built around the LM5106SD driver from Texas Instrument, high voltage gates drivers designed to control both the high side and low side of an Half Bridge N-Channel MOSFETs configuration, which make it easier to setup the necessary full bridge used for a motor : a simple DC motor will need only two half bridges, but a brushless motor will need one more to work. Four half bridges will be necessary to use a stepper motor.
The board is powered by an external power supply in the range of 12V to 48V, and will send 12V through VHV pin to supply the entire 6TRON stack.
The Zest_Actuator_HalfBridges can be used for any equipement that requires N-MOSFET bridges to work, with a maximum output of 48V / 10A.
Specifications
LM5106SD
- Gate Driver used to control the half bridge MOSFETs
- PWM interface for each half-bridge
- Global ENABLE signal to turn on and off all drivers
| Feature | Details |
|---|---|
| MCP9808 | Temperature Sensor I2C interface (Address : @0x30) |
| MCP3425A1 | Input Voltage Sensor I2C interface (Address : @0xD2) |
| Connectivity | 80-pin 6TRON header 2 pins Input Voltage connector 4 pins Output Motors connector |
| Board size | 80 x 39 mm |
| Power Supply | 12V to 48V from Input Voltage connector 12V (VHV) to stack 3.3V (VREF) from stack |
| Category | Zest_Actuator |
Block Diagram
The graphics below gives an overview of the board features and connections.
80-pin 6TRON header
This table shows how the pinout on Zest_Actuator_HalfBridges corresponds to the pinout on the 6TRON BUS connector (the latter shown in the two middle columns).
| Description | 6TRON function | Pin number | Pin number | 6TRON function | Description |
|---|---|---|---|---|---|
| - | VJACK | 1 | 2 | VJACK | - |
| - | VJACK | 3 | 4 | VJACK | - |
| High Voltage External Power Supply | VHV | 5 | 6 | VHV | High Voltage External Power Supply |
| High Voltage External Power Supply | VHV | 7 | 8 | VHV | High Voltage External Power Supply |
| Bridge 4 PWM input (alternate) | DIO8 | 9 | 10 | VIN_EN | - |
| Bridge 4 PWM input | DIO7 | 11 | 12 | DIO9 | - |
| Bridges enable (alternate) | DIO6 | 13 | 14 | DIO10 | - |
| - | MD | 15 | 16 | DIO11 | - |
| - | DIO5 | 17 | 18 | DIO12 | - |
| Ground | GND | 19 | 20 | GND | Ground |
| Ground | GND | 21 | 22 | GND | Ground |
| - | VIN | 23 | 24 | VIN | - |
| - | VIN | 25 | 26 | VIN | - |
| - | VB_EN | 27 | 28 | DIO13 | Temperature Alert output (alternate) |
| - | VB_OUT | 29 | 30 | DIO14 | - |
| - | DAC1 | 31 | 32 | DIO15 | Bridges enable (alternate) |
| Bridge 4 current | ADC4 | 33 | 34 | DIO16 | - |
| Bridge 3 current | ADC3 | 35 | 36 | DIO17 | - |
| Bridge 2 current | ADC2 | 37 | 38 | DIO18 | - |
| Bridge 1 current | ADC1 | 39 | 40 | GND | - |
| - | EXT_NRST | 41 | 42 | GND | - |
| - | DIO4 | 43 | 44 | VREF | Reference Voltage |
| - | DIO3 | 45 | 46 | DIO19 | - |
| Temperature Alert output | DIO2 | 47 | 48 | DIO20 | - |
| Bridges enable | DIO1 | 49 | 50 | DIO21 | - |
| - | WKUP | 51 | 52 | DIO22 | Temperature Alert output (alternate) |
| - | ICAPT | 53 | 54 | DIO23 | - |
| Bridge 3 PWM input | PWM3 | 55 | 56 | DIO24 | - |
| Bridge 2 PWM input | PWM2 | 57 | 58 | DIO25 | - |
| Bridge 1 PWM input | PWM1 | 59 | 60 | DIO26 | - |
| - | SPI1_SS | 61 | 62 | DIO27 | - |
| - | SPI1_SCK | 63 | 64 | DIO28 | - |
| - | SPI1_MISO | 65 | 66 | DIO29 | - |
| - | SPI1_MOSI | 67 | 68 | DIO30 | - |
| - | UART1_TX | 69 | 70 | DIO31 | - |
| - | UART1_RX | 71 | 72 | DIO32 | - |
| I2C Data | I2C1_SDA | 73 | 74 | DIO33 | - |
| I2C Clock | I2C1_SCL | 75 | 76 | DIO34 | - |
| - | CAN1_TX | 77 | 78 | DIO35 | - |
| - | CAN1_RX | 79 | 80 | DIO36 | - |
Software Support
The Zest_Actuator_HalfBridge provides a demo example developed using Mbed OS. The board can run on Zest Core development boards.
Environmental impact
The Eco score of the Zest_Actuator_HalfBridge is expressed in points representing the environmental impact of an average European per year.
Eco-score details
BOM
| Component | data | unit |
|---|---|---|
| Passive electronic component | 7,08 | g |
| Active electronic component | 0,12 | g |
| LED | 0,0058 | g |
| Other component | 0,00 | g |
| Connectors Switchs | 4,38 | g |
| Logique type integrated circuit | 1,14 | g |
| Memory type integrated circuit | 0,00 | g |
| PCB | 3120 | mm² |
Consumption
| Low voltage electricity voltage France | ||
|---|---|---|
| Current | 20 | mA |
| Supply voltage | 5 | V |
| Autonomy | 100 | h |
| % use | 75 | % |
| Power | 0,0075 | kWh |