2 Channel Relay Board Using SMD Components ULN2003

Dual channel Compact  Relay driver module can be controlled by feeding 2-12V trigger voltage, Very useful project for application like Micro-Controller based projects, Remote controller, Lamp on Off, and any circuits which required isolated 5A current and high voltage switching by applying any TTL or CMOS level voltage. Two LED works as operation indicator, 3 pins screw terminals to connect load.  Relay provides both normally open and normally closed switching.

Note: Board is made only for low voltage switching applications.

  •     Input: 12 VDC @ 84 mA
  •     Output: Two SPDT relay
  •     Relay specification: 5 A @ 60 VAC
  •     Trigger level: 2 to 12 VDC
  •     Header connector for connecting power and trigger voltage
  •     LED on each channel indicates relay status
  •     Power Battery Terminal (PBT) for easy relay output connection

 

DC Solid State Relay Using Mosfet & Optically Isolated Gate Driver With Current Feedback & Fault Output

DC solid state Relay build using optically isolated Mosfet gate driver & high current Mosfet, this relay also provides current feedback as voltage output and fault TTL voltage output when  current goes above set point.  Current feedback designed around op-amp  as signal conditioning  which measure the current across low ohm shunt resistor.  On board preset (trimmer pot) to adjust the fault current set point.  Normally current fault output is high TTL it goes low if fault condition occurs.  Circuit available at www.twovolt.com

 

  • DC Supply 90V DC Maximum
  • Maximum Current Load 15Amps
  • Gate Driver Supply 15V DC

 

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

 

 

pwm-2a-solenoid-driver-using-drv101-1

pwm-2a-solenoid-driver-using-drv101-pcb


DRV101 APPLICATION FROM TI

pwm-2a-solenoid-driver-using-drv101-d

ISOLATED HIGH SIDE DRIVER CIRCUIT,  APPLICATION FROM TI

pwm-2a-solenoid-driver-using-drv101-2

DC MOTOR SPEED CONTROLLER USING AC TACHOMETER APPLICATION FROM TI

Two Channel Relay Board Using BC547

2 CHANNEL RELAY BOARD USING BC547 (1)

2 channel Relay driver project can be controlled by feeding 2-12V trigger voltage, Very useful project for application like Micro-Controller based projects, Remote controller, Lamp on Off, and any circuits which required isolated high current and high voltage switching by applying any TTL or CMOS level voltage. Two LED works as operation indicator while in , 3 pins screw terminals to connect load and provides  both normally open and normally closed switching.

DOC

Input: 12 VDC @ 84 mA
Output: Two SPDT relay
Relay specification: 5 A @ 230 VAC
Trigger level : 2 to 12 VDC
Header connector for connecting power and trigger voltage
LED on each channel indicates relay status
Power Battery Terminal (PBT) for easy relay output connection
Four mounting holes of 3.2 mm each
PCB dimensions 49 mm x 68 mm

2 CHANNEL RELAY BOARD USING BC547 (4)

2 CHANNEL RELAY BOARD USING BC547 (3)

2 CHANNEL RELAY BOARD USING BC547 (1)

2 CHANNEL RELAY BOARD USING BC547 (2)

One Channel Relay Driver Using BC547 Transistor

One Channel Relay Board Using BC547 (3)

Single Channel Relay project  is a simple and convenient way to interface a relay for switching application in your project.

 

DOC

Specifications:

Input – 12 VDC @ 42 mA
Output – SPDT relay
Relay specification – 5 A @ 230 VAC
Trigger level – 2 ~ 15 VDC
Header pins for connecting power and trigger voltage
LED indicates relay status
Power Battery Terminal (PBT) for easy relay output connection
Four mounting holes of 3.2 mm each
PCB dimensions 27 mm x 69 mm

 

 

One Channel Relay Board Using BC547 (2)

One Channel Relay Board Using BC547 (1)

One Channel Relay Board Using BC547 (4)

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