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Questions tagged [vibration-motor]

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Powering vibrator for clearing vacuum cleaner filter

I've found that one easy way of clearing the corrugated filter in many vacuum cleaners is to tap it lightly with a hammer. I suspect that using a vibrator would be more effective, and I would like to ...
Bill Bell's user avatar
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1 answer
72 views

EMI suppression from vibration disc motors

In my application I'm using 9V (6xAA batteries) to power three vibration disc motors in series (Solarbotics P/N:VPM2,) some LEDs (not shown) and then to a non-isolated DC-DC buck converter. The buck ...
Leoman12's user avatar
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1 answer
237 views

What components can be used as an alternative to vibration motors?

I am building a project that will vibrate at certain times. The item being vibrated is 300-700 grams (still working out the material). It needs to be a noticable vibration (like a phone vibration), ...
Jonesome Reinstate Monica's user avatar
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180 views

STM32 PWM signal keeps dropping to zero at random

I'm working with two DRV2605L vibration motor drivers, both set up to control an LRA motor with a PWM signal from an STM32L552ZET6Q microcontroller. The PWM signal goes through a resistor voltage ...
E.HP.S's user avatar
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1 answer
242 views

What is the output voltage of MCP23017 IO expander?

I am planning to power small vibration motors (17-20 mA max rating) once at a time through an MCP23017 port expander board to connected to a RPi 3 model B and driven by I2C. The operating voltage of ...
Gianf DS's user avatar
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1 answer
66 views

The amplified output of a haptic motor does not produce a sine wave

I generate a sine wave (100-500 Hz) and amplify it using an LM741 op-amp with a gain of 3. When I measure the output everything is fine; I see a pure sine wave of the same frequency as that of the ...
mangozu's user avatar
1 vote
0 answers
55 views

Generating 50-300 Hz oscillations with piezoelectric stacks

I am currently working on a project that prompts me to find/design sources of mechanical oscillations, similar to the ones generated by a motor with an eccentric load used in mobile phones and similar ...
APasagic's user avatar
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1 answer
252 views

Replacing piezo buzzer with vibration motor

I am looking for a simple and inexpensive way to replace 12V 12mA piezo buzzer with 1.8~3V 50~80mA vibration motor, something like VC1034H025L. The piezo is driven by 30ms pulses at intervals varying ...
Maple's user avatar
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2 answers
202 views

Can I use a 3.7 or 7.4v lithium ion battery to power 6 coin cell motors?

I am doing a project that involves 6 coin cell motors. I am looking to use a lithium ion battery but I'm not sure of what voltage so I'm reaching out to see if anyone has advice. Technical details on ...
Gracep's user avatar
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1 answer
418 views

Why did the transformer heat up when connected to a UPS?

I have an electromagnetic vibratory feeder with 2-phase input, 380 V, 0.35 kW. We noticed that the feeder has stable performance when it is connected to a generator because it has constant frequency ...
Raed Slekh's user avatar
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128 views

DRV8870 motor driver not powering motor

I am fairly new to electronics. I am trying to control a single 1.5V encapsulated vibration motor with the DRV8870 motor driver without much success. The motor is connected to the circuit at CN1 with ...
Tontu's user avatar
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1 answer
627 views

Hardware for Generating Low Frequency Vibrations

I am interested in having a small device generate low frequency vibrations in the range of 1Hz - 10Hz which can be adjustable. Doing my research, I came across small coin shaped motors which are ideal ...
GK89's user avatar
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0 answers
55 views

Alternating vibration motor

I would like to build a circuit similar to the two alternating flashing lights circuit, but using two disc vibration motors instead. I’d like it to have a speed control. The vibration motors have ...
Elle's user avatar
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3 votes
2 answers
1k views

Why would a BLDC motor be "noisy" in reverse

I have a BLDC motor on a controller I built running in both forwards and reverse. However the reverse direction is substantially noisier than the other and the motor vibrates more almost as if the ...
Simm's user avatar
  • 129
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1 answer
536 views

Do vibration motors vibrate in both directions at equal magnitude?

I'm using two vibration motors for my robot and to have it move forward, I have to solder the leads of the motor in the way shown in the picture. Previously when I soldered the leads of both motors ...
Lim LS's user avatar
  • 57
1 vote
1 answer
154 views

Should I be concerned about reverse current?

I have incorporated a reference design from this page on discrete driver circuits for vibration motors for the high-side configuration. Here is the picture of the circuit: I'm concerned about the ...
Lim LS's user avatar
  • 57
0 votes
1 answer
651 views

What are the reasons to use an LRA vs ERM for vibrations?

What are reasons to consider when choosing between linear resonant actuators (LRA) and eccentric rotating masses (ERM)? I'm sketching on a remote-controlled vibrator sex toy with variable frequency, ...
Anna's user avatar
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2 votes
2 answers
737 views

Is it possible to generate different PWM Signals for same duty cycles(e.g. 50%)?

Let us expect we have a duty cycle of 50%. Is it possible to reach that duty cycle with different PWM Signals (waveform)? With different I mean variants in the number and lengths of the "active time". ...
user3352632's user avatar
0 votes
1 answer
132 views

What are the implications on vibration measurement from decreasing Pulse-Width Modulation (PWM) frequency of a 9V electric motor?

What is the effect of a PWM (or other duty-cycle variation method) frequency change on the vibration of an electrical motor (9V, DC)? I plan to measure the (surface-) vibration with acceleration ...
user3352632's user avatar
1 vote
3 answers
546 views

What DIY Function Generator is Suitable to drive a Pasco WA-9857 String Vibrator?

Preface... total amateur. I picked up 8 Pasco WA-9857 String Vibrators off of eBay for an art project. I need some way of driving them individually.... cheaply. So I bought a $12 XR2206 Function ...
Mark David Gaal's user avatar
0 votes
2 answers
397 views

What is a simple method for measuring the physical vibration of a step motor (to STM32) in order to take it to a minimum?

For a university project we installed a motor that is controlled from a STM32F407G-discovery board through a step motor drive, we experimented with the number of Microsteps options in the drive, and ...
user176257's user avatar
0 votes
1 answer
2k views

Can I use 3v CR2032 to power multiple vibration motors?

I am planning to use a 3v Arduino pro mini with 2 coin cells (3v CR2032 each). I also need to connect 6 flat vibration motors in series rated as follows:- Rated Voltage: 3v, Rated Current: 70mA Can ...
Hardik Sharma's user avatar
1 vote
1 answer
714 views

Controlling Frequency of a Vibration Motor with Battery Voltage Output

I am looking to operate a Vibration motor at a sustained frequency (40Hz) Please see data sheet as below with an example of a motor. I understand that the best way to do this is to control the output ...
James.Faithfull's user avatar
1 vote
2 answers
467 views

Building a 20x20 matrix with vibrator motor coins

I am currently doing a project that requires a 20x20 matrix with coin type vibrator motors. I am not sure how to pull this off. What is the best way of driving all the motors all together? Provided ...
Angelo Charl's user avatar
0 votes
2 answers
4k views

How to generate 5- 20 Hz mechanical vibrations?

My project deals with simulating a fixed frequency tremor and process it. The required tremor range is 5-20Hz. I have been trying to generate this vibration motion with a vibration motor, but all i ...
user5089054's user avatar
-1 votes
1 answer
3k views

Frequency control of vibrator motor

I wish to generate a controllable frequency vibration on a device. The vibration frequency then has to be measured and filtered. For this purpose, I am using a vibrator motor as shown. Now, i wish ...
user5089054's user avatar
0 votes
1 answer
920 views

How to calculate the right motor size for a soil sifter [closed]

How would one calculate the proper size of an electric motor to properly drive a soil sifter? Assumptions: Screen: flat, 18"x24", 1/4" to 3/4" wire cloth (interchangeable screens), total weight (...
DIYser's user avatar
  • 344
2 votes
2 answers
310 views

Can I, Bi-Directional Level Shifter as Motor(3V) controller with Arduino Lilypad (3.3V)?

Basically this could be easily done by using a BJT NPN, but since I want to control two motors(3 V, 45-60mA) and 5 LEDs was thinking of using a Bi directional level shifter instead of using ...
Daki Withanage's user avatar
3 votes
1 answer
2k views

Connect a vibration motor to a headphone jack

I would like to solve the following problem: I have a a variometer-device for an RC plane. Its receiver has a standard 3.5 mm headphone jack that provides a beeping sounds to my headphones. I would ...
Christian H's user avatar
3 votes
1 answer
774 views

can I drive 100 or so LRAs with WS2811 controlling DRV2603?

I would like to make a suit with 100 or more individually controllable Linear Resonant Actuators. Texas Instruments makes this http://www.ti.com/lit/ds/symlink/drv2603.pdf which take a PWM as an input ...
meta-meta's user avatar
  • 131
0 votes
1 answer
243 views

Using a digital signal to turn on and off a vibrating motor

I'm designing a circuit with the IOIO-OTG board and a vibrating motor. The idea would be to have a digital pin on the IOIO board control the state of the motor (either ON or OFF). The motor operates ...
nopcorn's user avatar
  • 890
1 vote
2 answers
407 views

simple motor driver wouldn't work

I am using ATMega164PA as the microcontroller running at 8MHz on 3V coin battery (current battery voltage 2.5V). I am trying to turn on tiny coin vibration motor rated 3V, 90mA using ZXMN10A07FTA N-...
David Norman's user avatar
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0 votes
1 answer
132 views

Coin vibration motor terminal question

I am using a 3V coin vibration motor and using a 3V coin battery. Red wire of the motor connects to 3V and the black/blue wire connects to GND. What happens if the terminals are connected incorrectly ...
David Norman's user avatar
  • 1,495