3Amps DC Motor Speed & Direction Controller Using LMD18201 & 555 Timer

The circuit shown here are a DC Motor Speed and Direction Controller. Driver can handle DC Motor Load Up to 3Amp and DC supply 12V to 48V DC, The board is based on LMD18200 which is H-Bridge driver & 555 Timer IC generate PWM signal for speed control. Slide provided for direction Control. PWM duty cycle 10% 95%.

The LMD18201 is a 3A H-Bridge designed for motion control applications. The device is built using a multi- Shorted Load Protection technology process which combines bipolar and Internal Charge Pump with External Bootstrap CMOS control circuitry with DMOS power devices on Capability the same monolithic structure. The H-Bridge configuration is ideal for driving DC and stepper motors. The LMD18201 accommodates peak output currents up to 6A.

  • Motor Supply 12V 48V DC
  • Motor Load 3Amp 12V 48V DC
  • Logic Supply 5V DC
  • SW1 : Slide Switch To Change the Motor Direction CW/CCW
  • Duty Cycle 10% To 95%
  • Frequency 5Khz Approx.
  • Potentiometer Speed Adjust
  • LED Power Indicator

Note : J1 Jumper Close For Normal Operation.

 

Arduino Based open Source Robot Controller With I/Os using Dual LMD18201 3Amps Each H-Bridge Motor Driver & Sensors ( Compatible with M-BOT )

Arduino Based open Source Robot Controller With I/O using  Dual LMD18201 3Amps Each H-Bridge Motor Driver & Sensors ( Compatible with M-BOT  )

 

 

  • LMD18201X2 Motor Driver IC
  • Infra-Red Receiver TSOP1738
  • On Board Infra-Red LED
  • Multiple I/O Connectors for Sensors, Encoders
  • On Board LDR as Light Sensor
  • Onboard Piezo Buzzer
  • On Board Power LED

 

Switched Mode Controller for DC Motor Driver with Taco-Meter Using UC1637 & L298

Switched Mode Controller for DC Motor Driver with Taco-Meter Using UC1637 & L298

The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bidirectional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity. This monolithic device contains a saw tooth oscillator, error amplifier, and two PWM comparators with ±100mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.5V temperature compensated threshold.

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Full Bridge Power Driver For Small 12V DC Motor Using HIP4020

Full Bridge Power Driver For Small 12V DC Motor Load Up to 500mA In the Functional Block Diagram of the HIP4020, the four switches and a load are arranged in an H-Configuration so that the drive voltage from terminals OUTA and OUTB can be cross-switched to change the direction of current flow in the load. This is commonly known as 4-quadrant load control. As shown in the Block Diagram, switches Q1 and Q4 are conducting or in an ON state when current flows from VDD through Q1 to the load, and then through Q4 to terminal VSSB; where load terminal OUTA is at a positive potential with respect to OUTB. Switches Q1 and Q4 are operated synchronously by the control logic. The control logic switches Q3 and Q2 to an open or OFF state when Q1 and Q4 are switched ON. To reverse the current flow in the load, the switch states are reversed where Q1 and Q4 are OFF while Q2 and Q3 are ON. Consequently, current then flows from VDD through Q3, through the load, and through Q2 to terminal VSSA, and load terminal OUTB is then at a positive potential with respect to OUTA. Terminals ENA and ENB are ENABLE Inputs for the Logic A and B Input Controls. The ILF output is an Overcurrent Limit Fault Flag Output and indicates a fault condition for either Output A or B or both. The VDD and VSS are the Power Supply reference terminals for the A and B Control Logic Inputs and ILF Output. While the VDD positive power supply terminal is internally connected to each bridge driver, the VSSA and VSSB Power Supply terminals are separate and independent from VSS and may be more negative than the VSS ground reference terminal. The use of level shifters in the gate drive circuitry to the NMOS (low-side) output stages

Features

  • Two Independent Controlled Complementary MOS Power

Output Half H-Drivers (Full-Bridge) for Nominal 3V to 12V

Power Supply Operation

  • Split Voltage Power Supply Option for Output Drivers
  • Load Switching Capabilities to 0.5A
  • Single Supply Range +2.5V to +15V
  • Low Standby Current
  • CMOS/TTL Compatible Input Logic
  • Over-Temperature Shutdown Protection
  • Overcurrent Limit Protection
  • Overcurrent Fault Flag Output
  • Direction, Braking and PWM Control

 

Applications

  • DC Motor Driver
  • Relay and Solenoid Drivers
  • Stepper Motor Controller
  • Air Core Gauge Instrument Driver
  • Speedometer Displays
  • Tachometer Displays
  • Remote Power Switch
  • Battery Operated Switch Circuits
  • Logic and Micro-Controller Operated Switch

 

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PWM 2 Amp Solenoid,Valve,Heater Driver Using DRV101

The DRV101 is a low-side power switch employing a pulse-width modulated (PWM) output. Its rugged design is optimized for driving electromechanical devices such as valves, solenoids, relays, actuators, and positioners.The DRV101 is also ideal for driving thermal devices such as heaters and lamps. PWM operation conserves power and reduces heat rise, resulting in higher reliability. In addition, adjustable PWM allows fine control of the power delivered to the load. Time from dc output to PWM output is externally adjustable. The DRV101 can be set to provide a strong initial closure, automatically switching to a soft hold mode for power savings. Duty cycle can be controlled by a resistor, analog voltage, or digital-to-analog converter for versatility. A flag output indicates thermal shutdown and over/under current limit. A wide supply range allows use with a variety of actuators. The DRV101 is available in a 7-lead staggered TO-220 package and a 7-lead surface-mount DDPAK plastic power package. It is specified over the extended industrial temperature range of –40°C to +85°C.

FEATURES

  • HIGH OUTPUT DRIVE: 2.3A
  • WIDE SUPPLY RANGE: 24V
  • PWM 30% To 90%
  • PWM Output
  • Internal 24kHz Oscillator
  • Digital Control Input
  • Adjustable Delay and Duty Cycle
  • Over/Under Current Indicator
  • Fully Protected
  • Thermal Shutdown with Indicator
  • Internal Current Limit

 

APPLICATIONS

  • ELECTROMECHANICAL DRIVERS:
  • Solenoids Positioners
  • Actuators High Power Relays/Contactors
  • Valves Clutch/Brake
  • FLUID AND GAS FLOW SYSTEMS
  • INDUSTRIAL CONTROL
  • FACTORY AUTOMATION
  • PART HANDLERS
  • PHOTOGRAPHIC PROCESSING
  • ELECTRICAL HEATERS

 

 

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DRV101 APPLICATION FROM TI

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ISOLATED HIGH SIDE DRIVER CIRCUIT,  APPLICATION FROM TI

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DC MOTOR SPEED CONTROLLER USING AC TACHOMETER APPLICATION FROM TI

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