10 Level AC Motor Speed and ON/OFF Controller Circuit For Modern Appliances Using LS7311

The project specifically designed for motor speed control application in appliances such as blenders, etc. Tact switches provided for selecting/indicating from 1 to 10 power levels ( Speed Levels).  The project is ideal for universal and shaded-pole motor speed control for modern appliances design. Eliminates awkward mechanical switch assemblies and multi-taped motor winding.

Features

  • 10 Tact Switch for Speed Selection
  • 10 LEDS for speed indication
  • On Board Stop and Start Switches ( Start Switch Latch Operation)
  • Momentary Run Switch
  • Supply 230V ( 110V Possible Refer Data sheet for components Change)
  • 300W Load
  • On Board snubber for Inductive Load
  • No Separate DC power supply required

Download Data Sheet LS7311

Download PDF Schematic

 

 

 

 

 

 

RC Signal Monitor Using 20 Bargraph LEDs Including RC Switch ( RC Signal Reader Using Bar-Graph Display)

The versatile Bar-Graph SMD components based R/C signal monitor & R/C switch is a great tool for R/C hobbyist R/C modeller and DIY robotics, Tiny Bar-Graph displays provide a Red color bright, easy to read display of Radio Control (R/C) signal from 1mS to 2mS.  This Bar-Graph has 20 segments in single color and display R/C signal in span of 1mS to 2mS. The Barograph RC Signal reader is based on PIC micro-controller PIC16F886. This high performance measurement provides unique capabilities and can be used in various applications like Radio Signal Monitor, Robotics, Machine Control, RC Remote Tester, RC Signal to ON/OFF switch by connecting Relay board or Solid state relay at output of any suitable LED. Multi switches also possible connecting relay boards on all separate LEDs. Solder Jumpers provided on bottom side of PCB to select particular output to interface with Relay or Solid state Relay. PIC16F886 is heart of the project.

Note: This board has been designed for multiple options and has few extra components. Check BOM carefully before soldering the components.  Solder the parts as described in parts list. 

 

 Features

  • Supply 5V DC
  • Input 1mS to 2 Ms
  • Display Range 1.5mS to 2mS Center to Left 10 LEDs & 5mS to 1mS Center to Right 10Leds
  • Output Display 20 Color RED SMD LEDs
  • Compact Board with SMD Components
  • Supply input Header Connecter
  • Solder Jumper on each LED for Output Control, Alarm, and Relay

 

 

 

 

 

 

 

 

 

 

 

 

 

1.6KW Brush-Less Motor Power Driver Using IPM STK554U362

The compact motor drive power board is based on STK554U362A IPM module from ON semiconductor. It provides an affordable and easy-to-use solution for driving high power Brushless servo, AC Motors, and DC Brushless motors in a wide range of applications such as power white goods, air conditioning, compressors, power fans, high-end power tools and 3-phase inverters for motor drives in general.

The IPM itself consists of short-circuit rugged IGBTs and a wide range of features like (UVP) under voltage protection, (OCP) Over current protection with fault detection output flag , embedded temperature sensor NTC.Internal Boost diodes are provided for high side gate boost drive.

The main characteristics of this project are its small size, minimal BOM and high efficiency. It consists of an interface circuit, bootstrap capacitors, fault event signal and temperature monitoring. It is designed to work in single or three shunt configuration and with dual current sensing options: using three dedicated on-board op-amps

Thanks to these advanced characteristics, the system can provide the fast and accurate current feedback conditioning necessary for field oriented control (FOC). Refer Data sheet for more information

 

  • Input voltage: 125 to 400 VAC
  • Nominal power: up to 1600 W
  • Nominal current: up to 10 A
  • Input auxiliary voltage: up to 20 VDC
  • On Board 5V Regulator for Op-Supply
  • D2 Power LED (Gate Driver Supply)
  • 3 Pin Screw Terminal for AC Supply Input
  • 4 Pin Screw Terminal Connector For Motor Connections
  • On Board Fuse for Short Circuit Protection
  • Single- or three- shunt resistors for current sensing
  • IPM temperature monitoring and protection
  • Highly integrated device containing all High Voltage (HV) control from HV-DC to 3-phase outputs in a single small SIP module.
  • Output stage uses IGBT/FRD technology and implements Under Voltage Protection (UVP) and Over Current Protection (OCP) with a Fault Detection output flag. Internal Boost diodes are provided for high side gate boost drive.
  • 3 Independent shunt resistors and 3 X Channel signal condition amplifiers help to easy FOC based driver
  • Header connector provided for inputs and logic supply input
  • Externally accessible embedded thermistor for substrate temperature measurement.
  • Single control power supply due to internal bootstrap circuit for high side pre-driver circuit.
  • Externally accessible embedded thermistor for substrate temperature measurement.
  • All control inputs and status outputs are at low voltage levels directly compatible with micro-controllers.

Note : This board also supports following ICs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TheSTK554U362A is Intelligent Power Module (IPM) based upon ONs Insulated Metal Substrate Technology (IMST) for 3-phase motor drives which contain the main power circuitry and the supporting control circuitry. The key functions are outlined below:

 

IC PIN FUNCTIONS

 

+, U-, V-, W-

These pins are connected with the main DC power supply. The applied voltage is up to the Vcc level. Overvoltage on these pins could be generated by voltage spikes during switching at the floating inductance of the wiring. To avoid this behavior the wire trac-es need to be as short as possible to reduce the floating inductance. In addition a snubber capacitor needs to be placed as close as possible to these pins to stabilize the voltage and absorb voltage surges.

 

U, V, W

These terminals are the output pins for connecting the 3-phase motor. They share the same GND potential with each of the high side control power supplies. Therefore they are also used to connect the GND of the bootstrap capacitors. These bootstrap capaci-tors should be placed as close to the module as possible.

 

VDD, VSS

These pins connect with the circuitry of the internal protection and pre-drivers for the low-side power elements and also with the control power supply of the logic circuitry. Voltage to input these terminals is monitored by the under voltage protection circuit. The VSS terminal is the reference voltage for the control inputs signals.

 

VB1, VB2, VB3

The VBx pins are internally connected to the positive supply of the high-side drivers. The supply needs to be floating and electrically isolated. The boot-strap circuit shown in Figure 20 forms this power supply individually for every phase. Due to integrated boot resistor and diode (RB & DB) only an external boot capacitor (CB) is required.

CB is charged when the following two conditions are met. ① Low-side signal is input ② Motor terminal voltage is low level

The capacitor is discharged while the high-side driver is activated.

Thus CB needs to be selected taking the maximum on time of the high side and the switching frequency into account.

 

The voltages on the high side drivers are individually monitored by the under voltage protection circuit. In case an UVP event is detected on a phase its operation is stopped.

Typically a CB value of less or equal 47uF (±20%) is used. In case the CB value needs to be higher an external resistor (of apx. 20Ω or less) should be used in series with the capacitor to avoid high currents which can cause malfunction of the IPM.

 

HIN1, LIN1, HIN2, LIN2, HIN3, LIN3

These pins are the control inputs for the power stages. The inputs on HIN1/HIN2/HIN3 control the high-side transistors of U/V/W, and the inputs on LIN1/LIN2/LIN3 control the low-side transistors of U/V/W respectively. The input are active high and the input thresholds VIH and VIL are 5V compatible to allow direct control with a microcontroller system

Simultaneous activation of both low and high side is prevented internally to avoid shoot through at the power stage. However, due to IGBT switching delays the control signals must include a dead-time.

 

 

For fail safe operation the control inputs are internally tied to VSS via a 33kΩ (typ) re-sistor. To avoid switching captured by external wiring to influence the module behavior an additional external low-ohmic pull-down resistor with a value of 2.2kΩ-3.3kΩ should be used.

The output might not respond when the width of the input pulse is less than 1μs (both ON and OFF).

 

FLTEN

The FLTEN pin is an active low input and open-drain output. It is used to indicate an in-ternal fault condition of the module and also can be used to disable the module opera-tion. The I/O structure is shown

 

The internal sink current IoSD during an active fault is nominal 2mA @ 0.1V. Depending on the interface supply voltage the external pull-up resistor (RP) needs to be selected to set the low voltage below the VIL trip level.

For the commonly used supplies VP:

VP = 15V -> RP >= 20kΩ VP = 5V -> RP>= 6.8kΩ

 

For a detailed description of the fault operation refer data sheet chapter 4

 

Note: The Fault signal does not latch permanently. After the protection event ended and the fault clear time(2ms) passed, the module operation is automatically re-started. Therefore the input needs to be driven low externally activated as soon as a fault is detected.

 

TH

An internal thermistor to sense the substrate temperature is connected between TH and VSS. By connecting an external pull-up resistor to arbitrary voltage, the module temperature can be monitored. Please refer to heading 3.2 for details of the thermis-tor.

Note: This is the only means to monitor the substrate temperature indirectly.

 

 

Operation procedure

Step1: Please connect IPM, each power supply, logic parts, and the motor to the evaluation board,

and confirm that each power supply is OFF at this time.

Step2: Please impress the power supply of DC15V.

Step3: Please perform a voltage setup according to specifications, and impress the power supply

between the “+” and the “-” terminal.

Step4: By inputting signal to the logic part, IPM control is started.

(Therefore, please set electric charge to the boot-strap capacitor of upper side to turn on

lower side IGBT before running.)

* When turning off the power supply part and the logic part, please carry out in the reverse order

to above steps.

Step-Dir. signal to double drive CW/CWW Pulse Converter for CNC, Motion Control & AC Servo Driver

Simple Circuit converts Step/Dir. signal into to double drive CW/CWW Pulse, Mach3 and few Hobby CNC software’s provides Step/Direction pulse output to drive stepper motor drivers.

Various AC servo works with double CW/CCW pulse. This circuit is solution to interface such AC CW/CCW pulse based driver with Mach3 or other CNC software’s. Circuit designed around 7408 and 7404 IC, board support 5V or 24V supply. Open Collector output can be interface with 24V system by changing output resistors.

Features

  • Supply 7V 24V DC
  • On Board Power LED
  • Inputs and Outputs Header Connector
  • On Board ERTH (Earth) Signal provided for chassis ground to avoid any noise

 

Note : Output Transistor can drive Stepper Drive or Servo driver Opto-couplers directly , choose appropriate collector resistor value for 5V or 24V

 

  • R3,R5,R9 470 Ohms for 5V DC Open Collector Output
  • R3,R5,R9 2K2 Ohms for 24V DC Open Collector Output

 

Inputs:

  1. Step Pulse ( TTL 5V)
  2. Direction Pulse ( TTL 5V)
  3. Enable Signal ( TTL 5V )

 

Outputs:

1 CW (5V Or 24V Open Collector)

  1. CWW ( 5V Or 24V Open Collector )
  2. Enable ( 5V Or 24V Open Collector )

 

 

 

 

 

 

 

 

50A IPM Intelligent Power Module for VFD and AC Servo Using STK5F4U3E2D-E IC Schematic PCB Layout

50A IPM Intelligent Power Module for VFD and AC Servo Using STK5F4U3E2D-E IC Schematic PCB Layout

The Circuit is based on STK5F4U3E2D-E IC from www.onsemi.com, this module can handle current up to 50Amps, and very useful for VFD drive and AC Servo applications, The Intelligent Power Module (IPM) is a fully integrated three phase inverter power stage. It is best suited for driving permanent magnet synchronous motors (PMSM), brushless-DC (BLDC) motors and AC asynchronous motors.

PDF Schematic

Data Sheet STK5F4U3E2D-E

Features

  • 3-Phase IGBT Motor Drive module with integrated drivers
  • Three Separate Emitter Connections
  • Cross-Conduction protection
  • Current Sense with an External Resistor
  • Enable Pin for external shutdown
  • Under Voltage lockout protection
  • Adjustable Overcurrent protection level
  • Output Configuration 3 Phase
  • Maximum Output Current 100A
  • Maximum IGBT Collector Current 50A
  • Maximum Collector Emitter Voltage 600 V
  • Mounting Type Through Hole
  • Package Type PDIP
  • Pin Count 44
  • Maximum Operating Supply Voltage 5 V
  • Minimum Operating Supply Voltage 5 V
  • Typical Switching Frequency 20kHz
  • Maximum Isolation Rating 2000Vrms
  • Series Intelligent Power Module
  • Inverter Power Rating 5W
  • Maximum Operating Temperature +100 °C

 

 

 

 

Under & Over Temperature Sensor AC Switch for Heater, Fan, and Airflow Controller Using TMP01

under-or-over-tempereture-switch-ac-switch-for-heater-or-fan4-pic

Under & Over Temperature Sensor AC Switch for Heater, Fan, and Airflow Controller

The TMP01 is a temperature sensor that generates a voltage output proportional to absolute temperature and a control signal from one of two outputs when the device is either above or below a specific temperature range. Both the high/low temperature trip points and hysteresis (overshoot) band are determined by user-selected external resistors. For high volume production, these resistors are available on board.

The TMP01 consists of a band gap voltage reference combined with a pair of matched comparators. The reference provides both a constant 2.5 V output and a voltage proportional to absolute temperature (VPTAT) which has a precise temperature coefficient of 5 mV/K and is 1.49 V (nominal) at 25°C. The comparators compare VPTAT with the externally set tempera-ture trip points and generate an open-collector output signal when one of their respective thresholds has been exceeded.

Hysteresis is also programmed by the external resistor chain and is determined by the total current drawn out of the 2.5 V reference. This current is mirrored and used to generate a hysteresis offset voltage of the appropriate polarity after a comparator has been tripped. The comparators are connected in parallel, which guarantees that there is no hysteresis overlap and eliminates erratic transitions between adjacent trip zones.

The TMP01 utilizes proprietary thin-film resistors in conjunc-tion with production laser trimming to maintain a temperature accuracy of ±1°C (typical) over the rated temperature range, with excellent linearity. The open-collector outputs are capable of sinking 20 mA, enabling the TMP01 to drive control relays directly. Operating from a 5 V supply, quiescent current is only 500 μA (max).

 

Applications

  • Over/under temperature sensor and alarm
  • Board-level temperature sensing
  • Temperature controllers
  • Electronic thermostats
  • Thermal protection
  • HVAC systems
  • Industrial process control
  • Remote sensors

 

under-over-temperature-sensor-ac-switch-for-heater-fan-and-airflow-controller-6

under-over-temperature-sensor-ac-switch-for-heater-fan-and-airflow-controller-5

REFER TMP01 DATA SHEET FROM www.analog.com  FOR R5,R6,R9 RESISTOR CALCULATION.

under-over-temperature-sensor-ac-switch-for-heater-fan-and-airflow-controller-2 under-over-temperature-sensor-ac-switch-for-heater-fan-and-airflow-controller-1

under-over-temperature-sensor-ac-switch-for-heater-fan-and-airflow-controller-3

under-over-temperature-sensor-ac-switch-for-heater-fan-and-airflow-controller-4

AC Motor Speed Controller Using U2008 Current Feedback

AC MOTOR SPEED CONTOLLER USING U2008 (3)

This low cost current feedback phase control AC motor driver based on U2008 IC, The U2008B is designed as a phase control circuit in bipolar technology. It enables load-current detection as well as mains-compensated phase control. Motor control with load-current feedback and overload protection are preferred application.

DOC

Specifications

  • Supply In-put: 230V AC
  • Load: Up to 500W (Triac Required Heat sink for Higher Load)
  • Jumper J1 Selection: A-Load Current Compensation or B-Soft Start
  • PR1: Preset for Phase Control ( Ramp Current Adjustment)
  • P1 : Potentiometer Set Point

 

 

AC MOTOR SPEED CONTOLLER USING U2008 (1)

AC MOTOR SPEED CONTOLLER USING U2008 (2)

AC MOTOR SPEED CONTOLLER USING U2008 (2)

AC Motor Or Fan Speed Controller Using Traic

AC MOTOR SPEED CONTROLLER USING TRAIC  (1)

AC Motor Speed Controller project is a simple potentiometer based speed controller design for inductive type load.

DOC

 

  • Mains supply input 230 VAC or 110 VAC
  • Output : 200 Watt
  • Triac based design
  • Screw terminal connector easy connection
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 50 mm x 47 mm

AC MOTOR SPEED CONTROLLER USING TRAIC  (3)

 

 

AC MOTOR SPEED CONTROLLER USING TRAIC  (2)

 

 

AC MOTOR SPEED CONTROLLER USING TRAIC  (1)

 

 

AC Solid State Relay For AC Motors On/OFF

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.

DOC

  • 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 RELAY FOR INDUCTIVE LOADS (2) SOLID STATE RELAY FOR INDUCTIVE LOADS (1) SOLID STATE RELAY FOR INDUCTIVE LOADS (3)

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