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: 12-24V ( 9 to 60V Supply Possible Check data Sheet)
  • 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

Watch Video Of Solenoid Driver

 

APPLICATIONS

  • Electra-mechanical  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

Closed Loop Brushless Motor Adapter Using MC33039

The MC33039 is a high performance closed–loop speed control adapter specifically designed for use in brushless DC motor control systems. Implementation will allow precise speed regulation without the need for a magnetic or optical tachometer. This device contains three input buffers each with hysteresis for noise immunity, three digital edge detectors, a programmable monostable, and an internal shunt regulator. Also included is an inverter output for use in systems that require conversion of sensor phasing. Although this device is primarily intended for use with the MC33035 brushless motor controller, it can be used cost effectively in many other closed–loop speed control applications.

Features

 

  • Digital Detection of Each Input Transition for Improved Low Speed Motor Operation
  • TTL Compatible Inputs With Hysteresis
  • Operation Down to 5.5 V for Direct Powering from MC33035 Reference
  • Internal Shunt Regulator Allows Operation from a Non-Regulated Voltage Source
  • Inverter Output for Easy Conversion between 60°/300° and 120° /240° Sensor   Phasing Conventions

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