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Questions tagged [dpdt]

Used to describe a Double Pole Double Throw relay (usually 8 terminals).

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How does one connect a DPDT Push switch?

I am using a MHPS2273 DPDT push button in my design. The purpose of this switch is to turn ON the device when I press the button. If I again press the button it will turn OFF the device. I am confused ...
Kuralmozhi's user avatar
1 vote
1 answer
61 views

Improvement for system with two DPDT switches

I have a system with a 12 V lead acid battery, a charger (plugged into the wall outlet), and an invertor, which generates AC power from the 12 V battery. I am also using the following battery charge/...
Sabuncu's user avatar
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Deciphering descriptions for momentary switches

While shopping for momentary switches for a DIY project I'm working on, I've come across some descriptions I don't fully understand. These are all related to DPDT switches. Examples: ON-OFF-(ON), (ON)-...
TopherR01's user avatar
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3 answers
187 views

DIY guitar amp cabinet selector switch

Problem statement: I have 2 guitar amplifiers and I have 2 speaker cabinets that normally connect via speaker cables (1/4" connectors). I would like to create a passive device that lets me ...
Luther Baker's user avatar
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3 answers
106 views

How to wire two DPDT relays in parallel?

I need two DPDT relays in parallel. They both should switch at the same time. I would connect 2 with 2 and 7 with 7. Is this correct?
ipving's user avatar
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How to add an outlet to a 4 way switch (DPDT)

Situation: I am a once in never tinker when coming to electricity. I have one lamp being controlled by 3 light switch. So I must have 2 SPDT (3 way switch) and one DPDT (4 way switch). I am looking to ...
Paulo's user avatar
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2 votes
1 answer
86 views

Can a 24VDC operated DPDT relay operate in a circuit that has 1000VDC?

Essentially, I am trying to come up with a circuit to automatically switch cabling configuration for a hi-pot test. The DPDT will only be switched when the circuit is not energized using a separate ...
tommar's user avatar
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1 answer
107 views

Is there an IC equivalent of a 3PDT switch?

I have two 3 wire RTD temperature sensors being used to measure the temperature of two different liquids. I only have one digital gauge to read the output on. I would like to switch between the two ...
S.Stevens's user avatar
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2 answers
137 views

Switching RS485

I'm using RS485 on an Arduino with a MAX485. The comms goes out to a two core loom, but I need to use the same loom for two purposes (non simultaneously): Provide power to a device RS485 ...
HemiMan's user avatar
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197 views

DPDT toggle AND WiFi relay - how do I do it?

As the title states I'm trying to wire BOTH a DPDT toggle switch (on off on) and a WiFi relay. Situation is as follows: I have a motorized ball valve which operates via a DPDT switch. There are five ...
BP Messenger's user avatar
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What type of switch/IC/relay to use?

I was wondering what I can use for S1 in the attached diagram. The switch function itself needs to be DPDT, and the operation needs to be (on)-off-(on) one way or another. I need to trigger the switch ...
Muscle Nerd's user avatar
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2 answers
343 views

Trying to protect MOSFET from motor flyback

I am trying to protect a MOSFET from motor flyback with two Schottky diodes. There is a DPDT reversal switch to reverse the direction of the motor. Is the included circuit accurate? MOSFET: 55 V, 49 ...
B0SC0's user avatar
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1 vote
0 answers
57 views

Best way to implement bypass circuitry for analog crossover filter circuit?

Below is a system block diagram of a schematic / PCB I am working on. It is an SOC with two differential audio DACs (left and right audio channel). Each channel has a fully differential cross-over ...
zigzidane's user avatar
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5 answers
459 views

Adding delay to DPDT switch

I have a simple circuit with a DPDT switch like this that I'm using to switch polarity on a linear actuator. The issue is that I'm using the actuator to toggle the switch, and there is a dead zone ...
greedymonkey's user avatar
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3 answers
702 views

DPDT relay datasheet

I'm looking for a 5 V relay, low current (Arduino)- DPDT and I found chinese one - RY5W-K in Aliexpress I'm trying to understand the pinout schematic: where is the ...
user1673206's user avatar
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1 answer
258 views

Using multiple DPDT switches to control one motor

Hi I am currently working on converting a bus into a mobile dog grooming salon. My problem is the bus has an electric door and the factory wiring dont work. Right now i have a single DPDT switch to ...
Tracer Foster's user avatar
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1 answer
126 views

Switch/pulse signal DPDT relay inconsistently switching polarity

I am trying to use a momentary switch to switch polarity of a motor using the linked device. It switches sometimes, but it is inconsistent. Below is the schematic of how I have the motor hooked up to ...
Samantha Garcia's user avatar
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2 answers
532 views

Can we connect two mobile batteries in series or parallel

I have two mobile batteries, one with 3.7v 1500mah and other is 3.7v 1300mah. I am using a DPDT switch to switch the two batteries in series and parallel. I use in parallel mode (3.7v) to charge the ...
Warriorrev6300's user avatar
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1 answer
40 views

DPDT (110V) with memory

I have one switch that should control two power lines (A and B) with lamps. ...
Aleksey Kolesnik's user avatar
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1 answer
158 views

How can i turn a DPST button in to a DPDT?

How can i turn a DPST button in to a DPDT? I've replaced all the stock rocker switches in UTV, got all 14 of them done except for one all to Push Buttons. The push buttons are SPDT, "on/on" ...
Vince Sodini's user avatar
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2 answers
369 views

DPDT Relay H-Bridge

I am trying to make a circuit so I can use an Arduino to change the rotation of a DC motor, so I am thinking about using an H-bridge made of a DPDT relay connected to the arduino. Would it work? Also ...
Divyansh Veer singh's user avatar
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2 answers
190 views

DPDT Polarity Switch

I am trying to connect a USB relay to actuator, so when I press button 1 , motor goes up, when i press button 2, polarity is switched and motor goes down. I am trying to achieve this with a DPDT relay....
S.Jess's user avatar
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1 answer
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Wiring DPDT (ON-OFF-ON) toggle switch to Two-Speed DC motor - Hours spent on interesting study - Still a fail :-)

Can someone show me, completely even, (cringe) on what wires go where. Here's a picture of the 3 parts. BIG DC BATTERY - TWO SPEED MOTOR - DPDT (ON-OFF-ON) SWITCH https://i.sstatic.net/5zTo7.jpg ...
McStew's user avatar
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1 answer
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Would a DPDT switch work to turn either one or both devices in this circuit?

I'm doing a replication of vehicle hi/low beam switch in my "lab" and I'm not sure what's the right type of switch for it. It has to have a dedicated on/off switch (the one on the bench ...
Varonne's user avatar
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5 answers
219 views

How do I make a DC motor rotate clockwise for a random value, then rotate counter-clockwise for the same amount autonomously? [closed]

For my project I need to build a repeatable vehicle without using any programmable devices (eg: Arduino, microcontrollers etc) After activation, the vehicle needs to move straight towards a wall which ...
rainskits's user avatar
0 votes
1 answer
60 views

What resistors does my circuit need?

I'm attempting to create a very basic pully system. I am using a DC plug (12V - 2A - 24W), into a DPDT 3 position rotary switch (240V - 20A) running 2 motors from either on position (12V 25GA-370). ...
Kal's user avatar
  • 1
0 votes
2 answers
69 views

Billboard sign electrical problem

I am building a billboard with a moving part. The movement is an ore cart, rolling on a track. I have installed a chain loop below the cart to move it from one end of the sign to the other, then back ...
Steve Foutz's user avatar
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2 answers
133 views

USB Receiver switch between two PCs

I use two desktop PCs and one set of wireless keyboard and mouse (Logitech with the 2.4 GHz Receiver). I got tired of plugging and unplugging the receiver so I took two old usb cables, a usb socket ...
Eigenvalue 's user avatar
2 votes
0 answers
40 views

Feed protection to the Mosfet drains

I have a machine running three 12v solenoid coils. Currently, control is carried out by manual switching of the negative through SPDT toggle switches. The coils all have a positive 12v common. I am ...
Jacob Goona's user avatar
1 vote
0 answers
107 views

Can't find suitable Bistable/Latching 12V DPDT Relay

I have a 12V actuator that is controlled by a 12V programmable timer. So my pulse is either power or no power. I am using a regular 12V DPDT relay which works fine. However, I would like to use a ...
ToWi's user avatar
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8 votes
4 answers
1k views

Control 16 motors with 8 relays

I build a project using 8 relays in a matrix (charlieplexing) to control 16 motors (actuators), plus one relay to control two DPDT relays to reverse the power for the motor to turn reverse. I only ...
Kim HJ's user avatar
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1 vote
4 answers
1k views

Is it possible to wire a DPDT switch so that each position creates an output? (3 outputs)

I am controlling three LEDs, and need to be able to toggle between them individually with a switch. Is this achievable with a DPDT switch? I'm not sure where I can find a switch that has one input and ...
Callum's user avatar
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1 vote
1 answer
242 views

Control two different DPDT circuits with one DPDT switch

I have a HDMI switch (pictured below) and a USB 2.0 Switch both have dual inputs and a single output, with no external power input. Both from what I can see are switched via DPDT switch. What I want ...
Tristan's user avatar
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0 votes
2 answers
165 views

Combo Indicator LED / Fuel Pump Relay Kill Switch

I'm looking to wire up simple on/on DPDT switch in my car so that in one position, power is cut to the fuel pump relay and power is sent to a fake alarm LED, and in the other position the fuel relay ...
Mister Pepper's user avatar
1 vote
2 answers
566 views

DIY Computer UPS - Smoothing DPDT Relay 80ms Cutover

I was shopping for a small UPS for my home networking lab closet; total load under 300w at 120v. But then realized I have a spare AGM car battery, 12v solar panel maintainer and 12-120v sine wave ...
Neil's user avatar
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1 vote
1 answer
275 views

How can I replacing broken DPDT switch with direct wiring?

The "gearbox" of my kids car i broken. It's the kind you sit in (at least the kid) and pushes a button with the foot and the car goes forward or backwards, depending of the state of the "gear". From ...
Script0r's user avatar
0 votes
2 answers
1k views

Brushed DC motor braking with speed controller

I've been getting some amazing info on this site so thanks for all the info so far! Onto my question. I know I can brake a dc motor by shorting the terminals but I also know how much current that ...
Sal's user avatar
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0 votes
1 answer
175 views

DPDT switch to control DPDT relay

this is a bit of a long shot but here goes. I need to buy a speed controller for an electric ride on car and I've had no success in finding one with a reverse polarity switch and one that also ...
Sal's user avatar
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0 votes
1 answer
247 views

Electronically Actuated DPDT Switch?

I am trying to be able to dynamically switch two wires on a brushless motor ESC for a Quadcopter. The plan is to wire an arduino to the flight controller so that I can program it to switch the ESC ...
UC SEDS's user avatar
2 votes
3 answers
3k views

How to wire a Rpi, a relay, a DPDT and a PWM module to a DC motor, allowing to control its direction and speed?

I am currently using a Raspberry Pi to control the speed of a 12V DC motor and it works perfectly fine right now like this: This works: I can start, stop and ramp up the DC motor speed. But ...
that-ben's user avatar
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1 vote
1 answer
307 views

How to construct a switch that would switch between two USB outputs, controlled electrically?

Basically I have a Smart TV, Raspberry Pi connected to it and wireless mouse and keyboard, using a single dongle for connection. What I would like to achieve is to being able to remotely switch where ...
Łukasz Zaroda's user avatar
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0 answers
547 views

Controlling a motor with Alexa enabled WiFi switches

I am looking to replace a DPDT switch, which controls a DC motor, with switches that can be activated using Alexa/over WiFi. For my purpose, the motor needs to spin in both directions, so the polarity ...
Callum's user avatar
  • 37
0 votes
0 answers
72 views

How to change polarity at 120V DC using DPDT?

I have a strand of LED Christmas lights. Each "bulb" has two LEDs - one is color and the other is white - the polarity on the string determines which of the two LED lights up. Pressing the button ...
justin's user avatar
  • 101
0 votes
1 answer
375 views

What contacts do the numbers on this DPDT relay refer to?

I’m new to electronics, could someone please list the contacts that belong to each number. e.g. COM1, COM2, NO1 etc. It’s a Taiss/JTX-2C, MK2P-I DPDT Power Relay with Plug-in Terminal Socket Base, DC ...
cbg's user avatar
  • 9
0 votes
3 answers
574 views

Can I use this DPDT relay with this circuit? If so, which wires connect to what terminals?

I'm following this tutorial to wire an automatic chicken coop door. The DPDT relay they're using is different to my relay so I'm finding it difficult to understand which wires connect to where. I'm ...
cbg's user avatar
  • 9
0 votes
1 answer
184 views

Powering 3 DC motors (with limit switches) with AC-DC adapter

I have 3 DC motors: each motor is being used to drive an independent system of pulleys. This system of pulleys spins a threaded bar in order to raise/lower a shelf in a linear motion. Thus, I have a ...
Callum's user avatar
  • 37
0 votes
1 answer
3k views

"Miderton" DPDT relay 8 pin

I am trying to get a small 1.5V display motor to turn 1st one direction and then the opposite. I understood that a "miderton" DTDP relay 8 pin would do this. The coil relay part is 12V. The relay is ...
canar's user avatar
  • 11
1 vote
2 answers
320 views

Modify DPDT push button with an NPN to control with GPIO?

I have an 2-port HDMI switch that swaps inputs using a 6-pin DPDT latching push button. I want to modify it to be controlled by a GPIO pin on my Pi rather than having to push the button. One way that ...
Donald's user avatar
  • 113
1 vote
1 answer
472 views

Mitigate voltage drops when using a relay

Hi and thank you for reading my question. I have a small experimental solar panel setup which charges a deep-cycle battery using an MPPT converter. I would like to power some garage and garden lights ...
6e69636b's user avatar
1 vote
0 answers
133 views

Arduino reboot with DIY H-bridge Controller

Here is my already tested and working schematic of the DIR +PWM mode DIY H-bridge on DPDT relay with IRLB-3034 N-channel MOSFET with opto isolation from the controller, and some "quick gate" driver ...
Sieben's user avatar
  • 59