3A DC MOTOR DRIVER MODULE SCHEMATIC USING LMD18200

3A DC MOTOR DRIVER SCH

The module has been designed around LMD18200 from Texas Instruments. The LMD18200 is a 3A H-Bridge designed for motion control applications. The device is built using a multi-technology process which combines bipolar and CMOS control circuitry with DMOS power devices on the same monolithic structure. Ideal for driving DC and stepper motors; the LMD18200 accommodates peak output currents up to 6A. An innovative circuit which facilitates low-loss sensing of the output current has been implemented.

 SCH

Features

  • Powerful bi-directional DC Motor driver
  • Screw-terminals for Power Supply and Motor Connections
  •  6-pin Header connector for PWM, direction, current sense, Brake
  • Delivers Up to 3A Continuous Output (6A Peak)
  • Operates at Supply Voltages Up to 55V
  • Low RDS (ON) Typically 0.33Ω per Switch at 3A
  • TTL and CMOS Compatible Inputs
  • No “Shoot-Through” Current
  • Thermal Warning Flag Output at 145°C
  • Thermal Shutdown (Outputs Off) at 170°C
  • Internal Clamp Diodes
  • Shorted Load Protection
  • Internal Charge Pump with External Bootstrap Capability
  • Mounting holes of 2.6 mm each
  •  PCB dimensions 44 mm x 25 mm

 

3A DC MOTOR DRIVER SCH (1)

3A DC MOTOR DRIVER SCHEMATIC & PCB LAYOUT

3A DC MOTOR DRIVER SCH BOM

3A DC MOTOR DRIVER BOM

3A DC MOTOR DRIVER

CONNECTIONS

L293 Dual DC Motor/Stepper Motor Driver Module

L293 DC MOTOR DRIVER MODULE

The project designed around L293D IC. The L293D device is quadruple high-current half-H driver. The 293D is designed to provide bidirectional drive current up to 600mA a voltage from 5V to 36V.L293D Adapter Board can be used as dual DC motor driver or bipolar stepper motor driver.  Useful in robotics application, bidirectional DC motor controller and stepper motor driver.  Separate logic supply to reduce dissipation.  L293D includes the output clamping diodes for protections.

SCH

  • Motor/Logic supply 5 to 36 V
  • Logic controls input 7 VDC max
  • Inhibit facility/enable
  • High Noise immunity
  • Over temperature protection
  • Capable of delivering output current up to 600 mA per channel
  • The control/interface lines are accessible with Berg connector
  • Header connector for motor and supply connection
  • PCB dimensions 36 mm x 24 mm
L293 DC MOTOR DRIVER MODULE SCH

L293 DC MOTOR DRIVER MODULE SCHEMATIC & PCB

L293 DC MOTOR DRIVER MODULE BOM

L293 DC MOTOR DRIVER MODULE BOM

 

Solid State AC Relay for AC Motor Using Traic

SOLID STATE SWITCH FOR AC MOTORS PIC

AC Solid state Relay for Inductive Load offers simple On/Off type Switch Control with TTL compatible input signal.

SCH

  • Input signal : 2 ~ 5 VDC, TTL compatible
  •  Output : up to 500 W
  •  Mains supply input 230 VAC or 110 VAC
  •  Optically isolated Triac based design
  •  Power Battery Terminal (PBT) and Terminal pins for easy input / output connection
  •  Four mounting holes of 3.2 mm each
  •  PCB dimensions 35 mm x 72 mm
SOLID STATE SWITCH FOR AC MOTORS SCHEMATIC

SOLID STATE SWITCH FOR AC MOTORS SCHEMATIC & PCB

 

5V DC Dual (Symmetrical) Power Supply

5V DUAL POWER SUPPLY SCHEMATIC

5V DUAL POWER SUPPLY SCHEMATIC, PCB LAYOUT

This Project provides Positive and Negative (Dual Output) 5 V @ 1 A Regulated Power Supply.

SCH

  • Input 7-0-7 VAC to 12-0-12 VAC or +/- 9 to 18 VDC
  • Output : Dual output ± 5 V @ 1 A regulated low ripple DC voltage
  • Heat-sink for regulator ICs
  • Onboard bridge rectifier to convert AC to DC
  • LED indication for both the outputs
  • Thermal overload/short circuit protection (provided by IC feature)
  • Screw terminal connector for easy input and output connection
  • Filter capacitors for low ripple DC output
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 46 mm x 60 mm

 

5V DUAL POWER SUPPLY BOM

5V DUAL POWER SUPPLY BOM

4Amps Bipolar Micro-Stepper Driver Using LV8727

The Project is based on LV8727E IC from ON Semiconductor. The LV8727 is a PWM current-controlled micro step bipolar stepping motor driver. This driver can provide eight ways of micro step resolution of 1/2, 1/8, 1/16, 1/32, 1/64, 1/128, 1/10, 1/20, and can drive simply by the step input. This Bipolar Driver works with supply input 9V to 36V (Replace L317 with L317HVT for supply input up to 45V DC). Load current up to 4Amps.

SCH

4 Amps Bipolar Stepper Motor Driver Using LV8727

4 Amps Bipolar Stepper Motor Driver Using LV8727 Schematic, PCB Layout

4 Amps Bipolar Stepper Motor Driver Using LV8727 MICRO STEP SETTING TABLE

Micro-Step Setting

4 Amps Bipolar Stepper Motor Driver Using LV8727 BOM

4 Amps Bipolar Stepper Motor Driver Using LV8727 BOM

 

Features

  • Supply 9V to 36V DC (Replace L317 with L317HVT for Supply up to 45VDC)
  • Load Current Up to 4Amps
  • Inputs:  Step Pulse, Direction, Enable
  • Micro-Stepping: 4 Way DIP Slide Switch
  • On Board Power Indication
  • On Board L317 for 5V DC Regulator
  • Current Adjust Preset
  • Over Current protection
  • Thermal Shutdown
  • FDT Adjust Preset (DECAY Setting)
  • Single-Channel PWM current control stepping motor driver.
  • Output Current 4Amps
  • Micro Stepping 1/2,1/8,1/16,1/32,1/64,1/128,1/10,1/20 Step are selectable.
  • Advance the excitation step with the only step signal input

 

Output Current Settings (PR2 Preset Constant Current Setting )

 

  • Current Output= (VREF/3)/0.1E (Shunt Resistor R8, R10)
  • Example: (VREF 0.9V/3)/)0.1E=3Amps

 

Enable (Stand-by function)

When enable input is high the ST pin is at low levels, The IC enters stand-by mode, all logic is reset and output in turned off

Keep Enable input low (No Signal Input at Enable) for Normal operations, Apply 5V at disable the drive

 

Jumper-J1 Output Enable ( J1 Closed for Normal Operation)

Jumper Open put the output forced off and goes to high impedance. However the internal logic circuits are operating, so excitation position proceeds when the STP is input, when J1 close, the output level conforms to the excitation position proceed by the step input.

 

FDT DECAY mode setting (PR1-Prest)

Current DECAY method is selectable as shown below by applied voltage to the FDT pin.

 

3.5V to 5V Slow DECAY

3.1V to 3.5V Inhibited Zone

1.1V to 3.1V or Open Mixed DECAY

0.8V to 1.1V Inhibited Zone

0 to 0.8V Fast DECAY

Note: It is not recommended e to change DECAY method during Motor operation.

 

 

Note 01 DOWN output Pin

This pin is turned ON when no rising edge STEP between the input signals. This pin used to set the holding current when motor at HOLD state. Its help reducing the current when motor is not moving and it’s in Holding position.

 

R4 is associated to control the holding current when motor is in HOLD State, value of R4 to be calculated as per Input Ref voltage, and required holding current, see below formula to calculate the R4

 

Down Output OFF: VREF=5VXR2/(R1+R2)=0.741V

Down Output On: VREF=5VXR2 (R2IIR4)/(R1+(R2IIR4)=0.126V

Note02 R1 and R2 Divide PR2 and R4=1K

 

CN8 : 3Pin Header Connector

Auxiliary Power output 5V DC, GND, VDD-Supply Voltage

 

CN7 : 2 Pin Header Connector

Current Test (Voltage)

 

4 Amps Bipolar Stepper Motor Driver Using LV8727 Connections

4 Amps Bipolar Stepper Motor Driver Using LV8727 Connections

DC Motor Direction Controller Using Relay & Flip Flop

DC Motor Direction Control project offers direction control using digital logic gates and a DPDT relay.

SCH

Features

  • Supply input 12 VDC @ 75 mA
  • Power LED
  • DC Motor Direction LED Yellow/Green
  • Relay Output: up to 7 A ( DC Motor Load 7mps)
  • Onboard tactile switch for direction control
  • Relay based drive design with diode protection
  • LED indicator for direction indication
  • Power-On LED indicator
  • Terminal pins and screw terminal connector for easy input / output connection
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 41 mm x 81 mm

 

DC MOTOR DIRECTION CONTROLLER USING DPDT RELAY

DC Motor Direction Controller using DPTD Relay Schematic, PCB layout

AC Solid State Toggle Switch Using Traic and CD4001

ON/OFF AC load Controller project offers simple On/Off Switch Control with two tact switch, The switch has snubber circuit to control restive load as well as inductive load.

SCH

  • Input supply – 12 VDC @ 40 mA
  •  Output – upto 500 W – 230 VAC
  •  Onboard tactile switch for ON/OFF control
  •  Opto-isolated Triac based design
  •  Power-On LED indicator
  •  Screw Terminal pins for easy input / output   connection
  •  Four mounting holes of 3.2 mm each
  •  PCB dimensions 44 mm x 86 mm

 

SOLID STATE AC TOGGLE SWITCH

AC Solid State Toggle Switch Schematic, PCB Layout

1.2V-32V DC @ 5Amp Adjustable Power Supply Using LM338K

1.2V TO 32V ADJUSTABLE POWER SUPPLY

1.2V TO 32V Power Supply Schematic, PCB Layout

This project provides a variable output voltage ranging from 1.2 to 32 V @ 5 A. Project based on LM338K IC, LM338K is adjustable 3 terminal positive voltage regulator capable of supply in excess of 5A over a 1.2V to 32V output range, simple circuit consist few components.

SCH

Features

  • Input Supply : 24 VAC or 30 VDC, 5 Amp
  • Output : variable output from 1.2 to 32 V @ 5 A regulated low ripple DC voltage
  • Heatsink for regulator IC
  • Onboard bridge rectifier to convert AC to DC
  • LED indication at input of IC
  • Thermal overload/short circuit protection (provided by IC feature)
  • Screw terminal connector for easy input and output connection
  • Berg connector for connecting potentiometer (POT) to the PCB
  • Filter capacitors for low ripple DC output
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 91 mm x 66 mm

 

8 Pin SMD SO8 PIC Micro-controller Development Board (PIC12F683)

 C085FF

8 PIN SMD PIC development board is a full-featured development board and platform for 8-bit PIC® micro controllers. This kit is a versatile development solution, featuring several options for external sensors, off-board communication and human interface. Additionally, it offers ample room for expansion, making it an excellent solution for developers and engineers looking for a… The 8 Pin SO8-SMD PIC Development / Evaluations Board demonstrates the capabilities of Microchip’s 8-bit micro controllers, specifically, It can be used as a standalone demonstration board with a programmed part. With this board you can develop and prototype with all Microchip’s 8 PIN PIC micro controllers which doesn’t required crystals (External Oscillator). On board connector for ICSP allows an easy programming. The board has configurable pull ups on all pins can be soldered or abandon as per requirement, All pins has solder Jumpers for pull down.  Onboard 5V regulator, two tact switch, one output connector to interface with 12V Relay board or solid state AC or DC Relay. Board has small prototype area. We have considered PIC12F683 IC for this Board.

SCH

Features

  • Supply 6V to 12V DC
  • On Board ICSP Connector for Programing
  • 3 Pin Output Header Connector for Relay or Solid State Relay
  • All Pin has pull up resistors can be solder as per requirement
  • All Pins has solder Jumper for pull down
  • ON Board 5V Regulator
  • On Board 2 tact switches
  • Small Proto Area
  • 3 Parallel Header Connectors connected to pin 2, 3, 4, 5, 6, 7

 

 

8 PIN SO8 PIC Development Board Circuit

8 PIN SO8 PIC Development Board Circuit and PCB Layout PIC12F683

8 PIN SO8 PIC Development Board BOM

8 PIN SO8 PIC Development Board BOM PIC12F683, PIC12F675

8 PIN SO8 PIC Development Board PIC

8 PIN SO8 PIC Development Board PICA

Dual Adjustable Power Supply +/- 1.2V to 30V DC. 1.5Amp

Dual-Adjustable-Power-Supply-1

This project is a solution to power up most of devices or projects required dual (+/-) adjustable power supply. The circuit is based on LM317 positive and LM337 negative voltage regulator. LM317  series of adjustable 3 terminal regulator is capable of supplying in excess of 1.5A over a  1.2V to 30V DC output range, due to TO3 package of  IC and large heat sink the power supply can handle maximum load  current.

Output: +/- 1.2 to 30V DC
Output Current: 1.5Amps
Supply Input: 24V-0-24V AC, 2Amps Center tape Transformer
CN1: Transformer Connections
CN3: +/- Dual Supply Outputs
P1: Positive Voltage Adjust
P2: Negative Voltage Adjust
D1: Positive Power Indicator
D2: Negative Power Indicator

Dual-Adjustable-Power-Supply-2

SCHEMATIC

Dual-Adjustable-Power-Supply-4

BOM

Dual-Adjustable-Power-Supply-3

PCB TOP LAYER

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PCB BOTTOM LAYER

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