The relay board s driver circuit is built using a bjt as seen in the schematic below. G6s2 dc5 omron electronics incemc div relays digikey. The max4896 8channel relay and load driver is designed for medium voltage applications up to 50v. Functional devices modular panel relays, kele motor starter interface and more building automation productions available to ship. Dont handle the relay board after you turn on the power or plug in the wires, or whatnot, into live mains current. The bottom row of the digital out shows the status of the request, while the top row displays the status of the digital output as reported by the 3051 relay. Therefore, choosing the commonly available pn2222a and selecting a typical hfe value of 100, a base resistance of 88.
Relay driver boards with 40, 64 and 128 relay drivers. I have a k74v2 relay board, connected to my pc which is running xp sp3. It can drive a variety of relays, including a reedrelay. Hook it all back up, turn on the power, and see if the magic smoke comes out. This i2c relay controller is compatible with all computing platforms. Posted monday, april 22, 20 a simple and convenient way to interface 2 relays for switching application in your project. It takes at least 100ma of current to bridge the oxide layer that forms on the relay contacts, and most signals will not meet this requirement. Easy to install relay circuit board with five 20 amp and five 40 amp circuits. The orange, red, and brown cables are source, drain, gate of fet 1 respectively and grey, purple, and blue are sdg of fet 2 respectively. Usb 8 channel relay board for automation 24v, software examples available. Designed by peter jakab in united kingdom wishlist on wishlist tweet share pin this seller is taking a break until july 17, 2020. Dual relay driver board circuit schematic circuit diagram.
The relay boards driver circuit is built using a bjt as seen in the schematic below. The dual relay board allows you to control larger loads and devices like ac or dc motors, electromagnets, solenoids, and incandescent light bulbs. This device is offered in a 20pin, 5mm x 5mm tqfn package, resulting in substantial board space savings. In short, the rly10x products will be discontinued and will transition to the rly20x designs. The dual relay board is an accessory to the phidgetinterfacekit 888. These relay boards are generic control modules being able to be controlled by many control boards wh. This item includes the basic carrier pcb with two solderedin 12 v relays, 5. G6s2 dc5 telecom relay dpdt 2 form c through hole from omron electronics incemc div. Dc30v 10a standard interface that can be controlled directly by microcontroller for arduino,raspberry pi, 8051, avr, pic, dsp, arm, arm, msp430, ttl logic. Browse digikeys inventory of relay, solenoid driverrelay, solenoid driver. In this 4channel relay driver circuit we have used an optocoupler whic his triggered by active low signal, to trigger the npn transistor which further drives the relay. There are low cost 12v and 24v high power 8 channels relay boards. Always disconnect main power when connecting circuits to the dual relay board.
Simply provide the board with power, connect your logiclevel signals to the inputs, and the relay. Relay module 5v 2 channels for raspberry pi, arduino. You can find more information about the differences in how these boards function in this document. This relay board provides a convenient way to add relay outputs to your project, allowing you to switch highcurrent loads such as ac appliances, motors, and more. Can be used directly to control 240v power appliance from most of the microcontrollers and other control system circuits.
Pricing and availability on millions of electronic components from digikey. Dual relay driver board circuit schematic eeweb community. Pc relay driver board assembled qkits electronics store. The relays are under direct control of the output byte 8 bits from the parallel port. The onboard relays are controlled by dual mcp230017s using gpioa0.
Winford is transitioning to selling ttl relay boards that have some updates to their components. When using with highpower circuits, mount the dual relay board inside a suitable enclosure or electrical panel using standoffs. The relay can switch up to 220vac at 20a using a logic signal for control, but the small pcb layout and screw terminals likely limit it to lower voltage and current levels to at least half of these ratings. This will supply power to the transistor drivers and relay coils. Assuming that the output drive current from the gpio pin is a conservative 4 ma, the relay coil is a 5 v type with a resistance of 69. Two groups of 16 relays on this controller service all 32 onboard relays. The onboard relays are controlled by a mcp230017 using gpioa0. Pololu basic 2channel spdt relay carrier with 12vdc. The 3051 contains 2 relays for switching ac or dc power. With this relay board, any logiclevel signal from 3v up to 30v can be used to activate a relay it may be controlled direclty by microcontroller ttl logic as well. Dual relay driver board circuit schematic a simple and convenient way to interface 2 relays for switching application in your project. Trigger cycle timer delay switch 12 24v circuit board mos tube control module. I get the board to light up when i start my computer, but when i run my vixen program. The single relay board can be used to turn lights, fans and other devices onoff while keeping them isolated from your microcontroller.
Download and read the relay datasheet from the 27114 product page before using the relays. Nowadays, relays are used in interfacing boards of various capacities. Scxi1167 relay driver output topology ch 0 ch 1 ch 2 ch 3 ch 4 ch 5 ch 6 ch 7 ch 56 ch 57 ch 58 ch 59 ch 60 ch 61 ch 62 ch 63 common ground. You can use 16 onboard relay to control power switches. The dual relay board allows digital outputs of the 1018 phidgetinterfacekit 888, the 1202 phidgettextlcd or the 1203 phidgettextlcd to control larger loads and devices like ac or dc motors, electromagnets, solenoids, and incandescent light bulbs. Vcc, connected to the 5v current on the arduino board, gnd, connected to the ground and 2 digital inputs. Each relay is matched with one led to reflect its onoff status.
Here we have used 12v 10amp relay in this pcb board, but you can also use 5v relays. Additionally, various relay products are gathered at stores for users convenience which includesgrove relay, 12v relay price, relay 6v, 12v relay module interface board for arduino, 12v relay board, 12v relay board arduino, arduino 2 relay module, arduino 16 channel relay, arduino 12v relay shield can be easily viewed and. Control of the relay is provided via a 1 x 3 header friendly to servo cables and convenient to connect to. The acld9185 provides 16 electromechanical spdt relay which can be used by any acl series digital output board with do channels on 20pin flat ribbon connector. The arduino relay module is designed for a wide range for micro controllers such as the arduino board, avr, pic, arm, with digital outputs. Alls good, try a digital write to the pin to turn the relay on. Each relay is controlled by a seperate digital output, and can control open or close a circuit up to 240 volts at 10 amps ac or 100 volts at 5 amps dc.
This product or a similar replacement with a compatible form, fit and function will be produced as long as the parts and components required to make it are available. Features, specifications, alternative product, product training modules, and datasheets are all available. This relay driver boosts the input impedance with a regular bc547 npn transistor or equivalent. At kele we make it easy to find the right relays and contactors product. Provides 40 highcurrent, sinktype relay drivers for 5 to 32 volt relays. Parallel interfacel boards mount on top of the 115490 relay driver board for a low mated height. Modbus serial rs485 rtu and ascii output relays boards. The pololu basic 2channel relay carrier modules allow simple, independent control of two singlepole, doublethrow spdt switches from lowvoltage, lowcurrent control signals. It can be used to control various appliances, and other equipments with large current. Modbus rtu and ascii over serial rs485 network for remote process control and data acquisition. The white and black wire coming from the other board is the relay coil. Two groups of 16 relays on this controller service all 32 on board relays. The single relay board allows you to control highpower devices up to 10 a via the onboard relay.
The diodes protect the transistors from the backemf which is occurs when the relay is turned off and its magnetic field collapses. Features both positive or negative trigger activation, ato style blade fuse design, led circuit activation indicators, spike prevention relays and positive retention stud wiring posts. For demonstrating the working of this relay module, we have used. If the board is accidentally disconnected from the parallel port then the 10k pulldown resistors will turn the relay off. A general purpose 2 spdt channel relay board power supply 24vdc for switching highcurrent electrical loads both ac and dc siuch as motors, lights, pumps, contactors and more. Sainsmart 2channel 5v relay module this is a 5v 2channel relay interface board, be able to control various appliances, and other equipments with large current. This board includes four spdt relays, relay driver circuits, and protection diodes. The on board relays are controlled by dual mcp230017s using gpioa0.