EMS. 2 A Dual H-Bridge ver 2.0

Transcription

1 EMS 2 A Dual H-Bridge ver 2.0

2 Table Of Contents 1. Introduction Specification Layout Interface Description Connection Examples For 2 Two-Way Motors For 1 Two-Way Motor with 4 Ampere Maximum Load Testing Procedure Without Motor With Motor... 7 Attachment: Schematic

3 1. INTRODUCTION Embedded Module Series (EMS) 2 A Dual H-Bridge is a H-Bridge driver designed to generate a 2 ways drive with continuous current up to 2 A on 4.8 volts to 46 volts voltage. Each H-Bridge is equipped with a current sensor that can be used as a feedback to the controller. This module can drive inductive loads such as relay, solenoid, DC motor, motor stepper, and other kind of loads. 2. SPECIFICATION Consists of 2 full H-Bridge driver that can be paralleled. Each driver can pass 2 A continuous current. When they are paralleled, each pair can pass 4 A continuous current. Load voltage ranges from 4.8 V to 46 V. Compatible with TTL and CMOS level input. Power supply input for the driver (VCC) is separated from power supply input for the loads (V Mot). Equipped with external diodes as a protection from inductive loads. Equipped with current sensor for each H-bridge. Note! More detailed specification can be seen at the IC datasheet included in CD/DVD. 3. LAYOUT 3

4 4. INTERFACE DESCRIPTION The H-Bridge module possesses 2 headers (Interface Header 1 and Interface Header 2) and 1 set of connectors (Power & Motor Con). This section will explain the description and function of each header and connector. Interface Header 1 (J3) functions as input and output lines to control the first pair of H- Bridge drivers. The descriptions of each pin on Interface Header 1 is as follows: No. Pin Name I/O Function 1 M1IN1 I Input pin to determine the M1OUT1 output 2 M1IN2 I Input pin to determine the M1OUT2 output 3 M1CS O Analog output of current sensor from H-Bridge 4 M1EN I M1 (Output range V) Enable pin for M1 output pair (M1OUT1 and M1OUT2) 5 VCC - Connected to power supply input (5 Volt) 6 PGND - Ground reference for power supply input Interface Header 2 (J1) functions as input and output to control the second pair of H- Bridge drivers. The descriptions of each pin on Interface Header 2 is as follows: No. Pin Name I/O Function 1 M2IN1 I Input pin to determine the M2OUT1 output 2 M2IN2 I Input pin to determine the M2OUT2 output 3 M2CS O Analog output of current sensor from H-Bridge 4 M2EN I M2 (Output range V) Enable pin for M2 output pair (M1OUT1 and M1OUT2) 5 VCC - Connected to power supply input (5 Volt) 6 PGND - Ground reference for power supply input The current (in Ampere) passing through H-Bridge can be calculated with the following equation: I = output_voltage_on_mxcs_pin 0.1 Power & Motor Con (J2) functions as a connector for power supply and load. The descriptions of each pin on Power & Motor Con is as follows: Name PGND VCC MGND V MOT M2OUT2 M2OUT1 M1OUT2 M1OUT1 Function Ground reference for power supply input Connected to power supply input (5 Volt) Ground reference for power supply for the load Connected to power supply for the load Output of second half H-Bridge on the H-Bridge M2 pair Output of first half H-Bridge on the H-Bridge M2 pair Output of second half H-Bridge on the H-Bridge M1 pair Output of first half H-Bridge on the H-Bridge M1 pair 4

5 5. CONNECTION EXAMPLES 5.1. FOR 2 TWO-WAY MOTORS A 2A H-Bridge Module can be used to drive 2 two-way DC motors. The example can be seen in the following image: VCC (+5V) V Motor ( 4,8 V - 46 V) (catu (powdaya er input) digital) (pow(catu er input daya for motor) m otors) VCC V Mot Direction Arah1 1 Direction Arah2 2 Enable M1IN1 M1IN2 M1EN M1OUT1 M1OUT2 M1 Direction Arah1 1 Direction Arah2 2 Enable M2IN1 M2IN2 M2EN M2OUT1 M2OUT2 M2 PGND MGND Ground Digital Ground Motor (catu (powdaya er input) digital) (pow(catu er input daya for motor) m otors) The truth table for the connection above is as follows: INPUT OUTPUT M1EN M1IN1 M1IN2 M1OUT1 M1OUT2 Function H H L V MOT MGND Forward H L H MGND V MOT Reverse H L L MGND MGND Fast Motor Stop / Brake H H H V MOT V MOT Fast Motor Stop / Brake L X X Z Z Free Running Motor Stop INPUT OUTPUT M2EN M2IN1 M2IN2 M2OUT1 M2OUT2 Function H H L V MOT MGND Forward H L H MGND V MOT Reverse H L L MGND MGND Fast Motor Stop / Brake H H H V MOT V MOT Fast Motor Stop / Brake L X X Z Z Free Running Motor Stop Description: H = High X = don t care L = Low Z = High Impedance (Tri-state) 5

6 5.2. FOR 1 TWO-WAY MOTOR WITH 4 AMPERE MAXIMUM LOAD Two 2A H-Bridges can be paralleled so that it can be used to drive 1 two-way DC motor up to 4 A. The example can be seen in the following image: VCC (+5V) V Motor ( 4,8 V - 46 V) (catu (power daya input) digital) (power (catu input daya for motor) motors) VCC V Mot Direction Arah1 1 Direction Arah2 2 M1IN1 M2IN2 M1IN2 M2IN1 M1OUT1 M2OUT2 M Enable M1EN M2EN M1OUT2 M2OUT1 PGND MGND Ground Digital Ground Motor (catu (power daya input) digital) (power (catu input daya for motor) motors) Important! Pay attention to the H-Bridge parallel connection above. M1EN must be connected with M2EN. M1IN1 must be connected with M2IN2 while M1IN2 must be connected with M2IN1. M1OUT1 must be connected with M2OUT2 while M1OUT2 must be connected with M2OUT1. The truth table for the connection above is as follows: INPUT OUTPUT M1EN M1IN1 M1IN2 M1OUT1 M1OUT2 & & & & & Function M2EN M2IN2 M2IN1 M2OUT2 M2OUT1 H H L V MOT MGND Forward H L H MGND V MOT Reverse H L L MGND MGND Fast Motor Stop / Brake H H H V MOT V MOT Fast Motor Stop / Brake L X X Z Z Free Running Motor Stop Description: H = High X = don t care L = Low Z = High Impedance (Tri-state) 6

7 6. TESTING PROCEDURE 6.1. Without Motor 1. Connect the power supply for input (VCC) and the power supply for load (V Mot). 2. Perform testing by giving a High (+5V) or Low (0V) logic on the input (M1IN1, M1IN2, M1EN, M2IN1, M2IN2, and M2EN) that matches the truth table in Section Output terminals (M1OUT1, M1OUT2, M2OUT1, and M2OUT2) will output voltage that matches the functions stated in the truth table With Motor 1. Connect the H-Bridge Module with motor as shown on Section Connect the power supply for input (VCC) and the power supply for load (V Mot). 3. Perform testing by giving a High (+5V) or Low (0V) logic on the input (M1IN1, M1IN2, M1EN, M2IN1, M2IN2, and M2EN) that matches the truth table in Section The motor will work and output terminals (M1OUT1, M1OUT2, M2OUT1, and M2OUT2) will output voltage that matches the functions stated in the truth table. Thank you for your confidence in using our products, if there are difficulties, questions, or suggestions regarding this product please contact our technical support: support@innovativeelectronics.com 7

8 Attachment EMS 2 A Dual H-Bridge Schematic Innovative Electronics