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ElectroTechnics
Philippines
เข้าร่วมเมื่อ 28 มิ.ย. 2023
This channel content is about informative videos, like products in related to the use electronic and electrical related circuits and DIY electronics, repairs, reviews, what is the products, tools and how does it work, hobbies in electronics and electrical homemade circuits.
LM3915 | 10 LED Sound Level Display | Power Amplifier VU Meter
Creating a 10-LED sound level display (or VU meter) using the LM3915 IC can be a fun DIY project. Many enthusiasts prefer using a PCB (Printed Circuit Board) kit for better structure and reliability. Here’s a comprehensive guide on obtaining and building a DIY LM3915 VU Meter kit:
What is the LM3915 VU Meter?
The LM3915 is an integrated circuit designed to drive LED displays to indicate signal levels visually. It is ideal for audio applications, making it perfect for a VU meter. The meter can either operate in bar graph mode or dot mode, depending on your configuration.
Building the LM3915 VU Meter
Assembly Steps
1. **Prepare the PCB**:
- Start by inspecting the PCB for any defects or damage.
- Identify the components and their positions based on the silkscreen printing on the board.
2. **Soldering Components**:
- **Install the LM3915**: Place the IC in its designated spot.
- **Add Resistors and Capacitors**: Follow the schematic provided in the kit. Make sure to observe the correct polarity for polarized components (like electrolytic capacitors).
- **Connect LEDs**: Orient LEDs correctly based on the longer leg (anode) and shorter leg (cathode). Solder them onto the board.
3. **Power Supply Connections**:
- Connect the power supply as indicated in the schematic. Make sure to observe correct voltage ratings.
- If an adjustment potentiometer is included, install it at the input section as indicated.
4. **Input Connection**:
- Optionally, include a jack for connecting the audio signal (like a stereo input jack).
- You can add a capacitor to filter DC offset from the audio source.
5. **Testing and Calibration**:
- Once assembled, connect the power supply and use a multimeter to check for proper voltages at the IC pins.
- Connect an audio source and observe the LED response. Adjust components as needed for sensitivity.
Upgrades and Modifications
- **Change LED Colors**: You can use different colored LEDs for visual effectiveness.
- **Adjust Sensitivity**: Change resistor values or add a potentiometer to vary sensitivity to audio levels.
- **Housing**: Consider creating or buying an enclosure to protect the PCB and components.
A DIY LM3915 10 LED sound level display kit offers a rewarding project that enhances your understanding of electronics while providing a functional audio visualizer. if you want to know how to connect the components and testing Watch This video!
--You can see all my videos here!: www.youtube.com/@ElectroTechnics-g4s
Thank You very much, for supporting my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you.
Please don't forget to like, share, and subscribed!
What is the LM3915 VU Meter?
The LM3915 is an integrated circuit designed to drive LED displays to indicate signal levels visually. It is ideal for audio applications, making it perfect for a VU meter. The meter can either operate in bar graph mode or dot mode, depending on your configuration.
Building the LM3915 VU Meter
Assembly Steps
1. **Prepare the PCB**:
- Start by inspecting the PCB for any defects or damage.
- Identify the components and their positions based on the silkscreen printing on the board.
2. **Soldering Components**:
- **Install the LM3915**: Place the IC in its designated spot.
- **Add Resistors and Capacitors**: Follow the schematic provided in the kit. Make sure to observe the correct polarity for polarized components (like electrolytic capacitors).
- **Connect LEDs**: Orient LEDs correctly based on the longer leg (anode) and shorter leg (cathode). Solder them onto the board.
3. **Power Supply Connections**:
- Connect the power supply as indicated in the schematic. Make sure to observe correct voltage ratings.
- If an adjustment potentiometer is included, install it at the input section as indicated.
4. **Input Connection**:
- Optionally, include a jack for connecting the audio signal (like a stereo input jack).
- You can add a capacitor to filter DC offset from the audio source.
5. **Testing and Calibration**:
- Once assembled, connect the power supply and use a multimeter to check for proper voltages at the IC pins.
- Connect an audio source and observe the LED response. Adjust components as needed for sensitivity.
Upgrades and Modifications
- **Change LED Colors**: You can use different colored LEDs for visual effectiveness.
- **Adjust Sensitivity**: Change resistor values or add a potentiometer to vary sensitivity to audio levels.
- **Housing**: Consider creating or buying an enclosure to protect the PCB and components.
A DIY LM3915 10 LED sound level display kit offers a rewarding project that enhances your understanding of electronics while providing a functional audio visualizer. if you want to know how to connect the components and testing Watch This video!
--You can see all my videos here!: www.youtube.com/@ElectroTechnics-g4s
Thank You very much, for supporting my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you.
Please don't forget to like, share, and subscribed!
มุมมอง: 380
วีดีโอ
SMPS | Switched Mode Power Supply | Adjustable SMPS | DC | Power Supply | How Does It Works
มุมมอง 1.1Kวันที่ผ่านมา
An SMPS (Switched-Mode Power Supply) is a type of power supply that is more efficient and lighter than traditional linear power supplies. It works by converting electrical power efficiently from one form to another. Here’s how it generally operates: Basic Operation of SMPS 1. Input Stage : - The AC voltage from the power source is first rectified and filtered, converting it into DC voltage. Thi...
LM317 | Adjustable Power Supply | Variable DC | Power Supply
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The LM317 is a versatile adjustable voltage regulator that can be used to create a wide range of power supply configurations. It’s commonly used for applications where a specific output voltage is needed. Here's a brief overview of how to use the LM317 to build an adjustable power supply: Components Needed in LM317 Voltage Regulator. Resistors: (two resistors to set the output voltage) Capacito...
Standard | Electric Flat Iron | How It's Works | Parts and Repair
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1200 Watts | Electric Air Blower | How it Works | Repair
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Thank You very much, for continues support to my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you. Please don't forget to like, share, and subscribed! and now here is our topic. A 1200 Watts electric blower is a device powered by electricity that generates a strong ai...
How to Make | 5V&12v Fixed DC | High Current | Voltage Regulator
มุมมอง 527หลายเดือนก่อน
Thank You very much, for supporting my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you. Please don't forget to like, share, and subscribed! and now here is our topic. The 78M12 is a linear voltage regulator IC that provides a stable output voltage of 12Volts . It's p...
Standard Rice Cooker | How to Repair?
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Thank You very much, for supporting my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you. Please don't forget to like, share, and subscribed! and now here is our topic. A standard rice cooker is an appliance designed specifically for cooking rice. It typically consists...
Impact Electric Drill | Hammer Drill | Parts and Functions | How It Works
มุมมอง 366หลายเดือนก่อน
Thank You very much, for supporting my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you. Please don't forget to like, share, and subscribed! and now here is our topic. An electric drill with a hammer function, often referred to as a hammer drill, is a versatile power ...
How to Make | Toroidal Multi Tap | Transformer | Adjustable DC Power Supply
มุมมอง 498หลายเดือนก่อน
Thank You very much, for supporting my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you. Please don't forget to like, share, and subscribed! and now here is our topic. A Toroidal multi-tap transformer is a type of transformer designed to provide multiple output voltag...
How to Built | PWM | Adjustable Voltage Battery Charger | PWM Power Supply
มุมมอง 652หลายเดือนก่อน
Thank You very much, for supporting my channel and for watching my videos. Your feedback will help this video reach more people, and encourage me to find more resources to produce high quality and new content for you. Please don't forget to like, share, and subscribed! and now here is our topic. (DC To DC PWM DC Motor Speed Controller Module 5A 90W DC-DC 4.5V-28V Adjustable Speed Regulator Cont...
How to Make | TDA2030 Amplifier Circuit
มุมมอง 376หลายเดือนก่อน
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How to Repair Washing Machine Change Motor and Capacitor
มุมมอง 802 หลายเดือนก่อน
#howto #repair #washing #machine #change #motor and #capacitor how to repair washing machine capacitor, how to repair washing machine washer motor, A twin tub washing machine is a type of washing machine that features two separate tubs: one for washing and one for spinning. This design offers several advantages, such as: 1. Efficiency : You can wash and spin-dry clothes simultaneously, saving t...
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Air Cooler | Restoration | Change Motor to 12v DC
มุมมอง 1322 หลายเดือนก่อน
#aircoolerrepair Cooler Restoration Change Motor to 12v DC, How to repair air cooler, air cooler recondition, air cool, air purifier, cooling fan, An air cooler, often called an evaporative cooler, is a device that cools air through the evaporation of water. Unlike air conditioners, which use refrigerants and require a closed environment, air coolers are typically more energy-efficient and envi...
Carrier | Compact Inverter | Window Type Aircon | 1hp
มุมมอง 2392 หลายเดือนก่อน
A window-type inverter air conditioner combines the functionality of a traditional window air conditioner with inverter technology, which enhances energy efficiency and cooling performance. Here are some key features and benefits: Key Features 1. Inverter Technology : Unlike conventional ACs that turn on and off to maintain temperature, inverter models adjust the compressor speed based on the c...
Sanken Safari | 400watts | Power Amplifier
มุมมอง 1.3K2 หลายเดือนก่อน
Sanken Safari | 400watts | Power Amplifier
Wireless Grass Cutter | Electric Lawn Mower | Repair
มุมมอง 1993 หลายเดือนก่อน
Wireless Grass Cutter | Electric Lawn Mower | Repair
TBE | Modified Sine Wave Inverter | Repair
มุมมอง 3343 หลายเดือนก่อน
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-15v and +15v Split Type | Dual Voltage | Regulated | Amplifier Power Supply
มุมมอง 3183 หลายเดือนก่อน
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Condura | 6S 1HP window type | AIRCON | Installation
มุมมอง 2134 หลายเดือนก่อน
Condura | 6S 1HP window type | AIRCON | Installation
Crown PA 1550K Speaker | Durable Construction | Live Music | Box Design
มุมมอง 1844 หลายเดือนก่อน
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Full Wave | Bridge Rectifier | High Current | Regulated | Lead Acid Battery Charger
มุมมอง 1234 หลายเดือนก่อน
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USB type Lithium Ion Battery Rechargeable Mini Electric Fan Repair
มุมมอง 7615 หลายเดือนก่อน
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TDA7297 | Dual Power Amplifier | Stereo | Integrated circuit | 12v DC
มุมมอง 8835 หลายเดือนก่อน
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20w Amplifier | DC5v | Built-in Bluetooth Decoder Board | with Mic FM | USB
มุมมอง 1.1K6 หลายเดือนก่อน
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15KW AC synchronous Generator use for 5hp Submersible Pump REPAIR
มุมมอง 3817 หลายเดือนก่อน
15KW AC synchronous Generator use for 5hp Submersible Pump REPAIR
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very good video
ganyan lang pala motor nyan, simple lang ayusin
magkano price mosfet ng inverter
Mura lang online
ganyan din problema aiwa ko try ko ayusin kung pwede pa
Ok try mo... Baka same lang problem
nice power amp
Thanks
Very Nice vidéo
Thank you so much
Bhai display blling kar rhi h kya problem ho sakti h
Check the ribbon wire connected to display lcd
sir 22-0-22 kaya ba pang supply dyan?
Pwede po.
Pwd po ba mag pagawa sa inyo aking inverter?
Ano pong nanyare sa inverter nyo?
@ElectroTechnics-g4s pag nag open ako boss ng inverter bumababa ang breaker boss?
@ElectroTechnics-g4s 3 na boss nasira ko inverter gawa yata ng ref sa biglang andar
@@JeffTorregoza-rs2tc anong klase ng inverter gamit mo? at ilang watts po.
saan location mo?
Why on earth r u using a machine voice???
Yes, I'm using ai voice... I'm am very thankful for ai voice because I can use this to explain well my content, I am not good to speak english.. my content is about machine or products that in related to electronic and electric, so, I need to explain and define the unit well. Thanks for watching and supporting my channel, your feedback will guide me to make better content.
No schematic?
Thanks for Watching my videos and supporting my channel... you can buy online the PWM module in Low Cost, Click the link below For A1941 transistor you can also buy online: The purpose of the transistor is to provide high current output coming from PWM Module, More transistor will add the power output voltage, Just follow the video. HW-687 PWM Module for motor control - shopee.ph/product/162086844/12799033371?gads_t_sig=VTJGc2RHVmtYMTlxTFVSVVRrdENkVlBXTnFLbGtLY21IOVhMT0xMVGhrdTFyZ09WQmwxWjZBUDRTYzQ3V0UrOElHbVFaS2JzS0wrZ3dVZXdRZFZxNjdZREJoRzBtcWJETmVmUlFUZEhia3VpTm1ZK3ZqZlo2czVpdHBPZ1BGVjU&gad_source=1&gclid=Cj0KCQiApNW6BhD5ARIsACmEbkUDiDHBfRtA9CE3_iK4GgttvSymvPQo8xGODaE8DwsklqLxmCijD-IaAsu8EALw_wcB Thanks
No good
thanks for your feedback, your comment will push me to improve my next videos...
Как на нём включить мониторинг?
You can use headset or earphones to monitor. Thanks for watching
Salamat po
You're welcome po.
Ilang volts po ng battery ang kailangan jan? Kaya po ba ng 3.7v na battery?
3.7volts pwede po! Hwag lang 3.2volts
Anong size ng capacitor ng lucky pro 2hp
40 uf 450v, nakalagay ang capacitor value sa plate ng motor.. salamat sa panonood
thanks for explaining everything instead of letting us suffer through stupid music and just watching
Thanks for watching, thanks for your feedback... Your feedback will help my channel to improve, and to reach other people an encourage me to find more resources to produce a quality content.
කීයද
Thanks for watching my videos.. Please see the link. s.shopee.ph/6AU9stR3K6
Boss ilang speaker meron yan dalawa po ba
Yes po dalawa, Isang channel lang ginamit ko.
I have aiwa nsx s50 model No power & not working pls help
Yes.. no power display?
boss pag sa speaker malalaman ba polarity may iba silang ginagawa dumagamit ng battery eh sa multimeter boss mababasa ba?
Pag battery ang ginagamit pag check ng polarity ng speaker, umaagat Kasi Yung voice coil yun daw ang correct polarity ng positive at negative, pag multimeter ang gamitin continuity lang at ay konting tunog halos di gumagalaw ang cone.
@ElectroTechnics-g4s gagamitin ko kasi sya sa earphone di kasi pwede kalasin masisira coil
@@NivekNozid25 pwede mo Naman ikabit Yan boss, pag pangit Yung tunog balitarin mo lang Yung connectio, ganun ginagawa ko
Ask lng idol pwede ba ito sa 120v ko n jigsaw dewalt din n brand kaso 120v xa anung marerekomenda mo n mgnda para sa knya pasagot nmn ned ko help mo salamat
Pwede Yan boss.. jigsaw, grinder, at driller. I set mo Yung speed controller Yung parang volume sa kalahati kung Wala Kang voltmeter. Kung may voltmeter ka pwede mo rin I check ang voltage, dapat naka andar Yung jigsaw pag mag check ka ng voltahe. I set mo sa 120v,
@ElectroTechnics-g4s idol salamat sa tugon mo sa tanong ko tpos ko n nconvert gaya n ng gnwa mo bumili aq ng gnun sa gnmit mo 2k wats lng ang napansin ko sa dewalt jigsaw ko n 120v parang malaks mg spark sa loob bkit gnun idol ung napanood ko n vlooger sbi normal lng daw mg spark pag carbon brush daw ung tools mo pero nttkot aq ksiedyo malakas gumagana nmn xa gaya ng napanood ko sa vlog mo.. last n tanung idol ned ko lng tlga ng magaling pwede b ung step daw n transformer n 220v down to 110v pwde kya ung gmitin sa tools ko n 120v xa pero pasagot nmn idol at pa xplain para maintindihan ko salamat
@jonathanfabia6017 step down talaga Yung pwede mo gamitin boss pag ayaw mo Yung scr controller na gamitin, dapat pure copper gamitin mo Kasi pag aluminum madali masira.. tignan mo kung ilang watta Yung tools mo mas mataas konti dapat ng watts na bibilhin mo
Boss try mo I set sa 100v lang Yung scr controller mo, dapat may voltmeter ka.
@@ElectroTechnics-g4s pwde ba ung step down n 220v to 110v lng ksi un lgi nakikita ko wla ksing 220v to 120v eh pwde kaya un ksi ang rated sa tools ko 120v xa anu mapapayo mo idol
Untuk colokan phone pada mixer apa bisa untuk ear phone
Yes you can use common ear phones you can also adjust the phone volume
A ligacao da alimentação os 2 fios amarelo sao 24 + 24 e preto 0 ?
Yes, 24v yellow + 24volt yellow and 0 black or ground
Hi, where can I buy the IRF3206 MOSFET?
Online shopee s.shopee.ph/2VaIYVVrsT
Paano mag connect sa bluetooth?
Press MO Yung mode/St
30-0-30 kaya paps malakas din ba? Meron ako stereo sanken safari pero mga kinabit kong transistor original galing sa kenwood amp sa 25-0-25 bitin siya may nahanap ako 30-0-30 okay na kaya yun paps?
Pwede po.
Ilang vdc na paps nung narectify na yung sayo?
@@shinmina1722-+ 42vdc, Kasi 32-0-32 vac ginamit ko sa supply
Good❤❤😊
Thanks for liking
Ilang volt nilagay mo boss
32vac-0-32vac
@@ElectroTechnics-g4s ok naman tunog di mabilis uminit
@@zengdomingmacapinlac5757 normal lang Yung init Basta hwag ka lng mag lampas ng 45vdc output ng supply
@@ElectroTechnics-g4s thanks 👍👍👍
P.m.p.o yan boss,,,mas maganda rms sana!
Rms pero pang 8 ohms speaker, kung 4 ohms gamitin mo dagdag ka ng output transistor kasi lalakas Yan pag 4ohms,
Haha nu ba yan
Thanks malinaw paliwanag boss pero diko alam panu gawin haha wala ku alam sa gnyan sayang ganyan na ganyan Sera ng inverter kapatid ko same ng Sera walang fault nagg green wala NMN outpot
Palitan Lang Yung output mosfet, tapos I check. MO mga resistor na nakakabit sa mosfet. Salamat sa panonood
@@ElectroTechnics-g4s wla ko alam sa gnayan boss pudi kaya order ako mofset ung lima inorder mo tapos sa technician ko Paka bit same na same inverter ko na inayos mo at same ng sira wala fault pero ayaw mg bigay kurente
@@lilboy142 yes boss palitan MO lahat Yung mosfet, ipacheck MO din Yung apat na 1k na resistor na Naka connect sa gate ng mga mosfet, kasi pag kahit isa na sirang resistor Lang Ang hindi na palitan masisira din lahat ng mosfet na ikinabit MO. Thanks for watching
Pwd ko po ba pagawa sa inyo aking inverter na payto?
Matipid ba to sa kuryente?
Yes, kasi semi inverter Yan... Iba parin Yung inverter type talaga.
Hm po mixer?
Thank for watching my videos... Yes mixer!
link sa module sir
s.shopee.ph/6V5DkANLeW thanks for watching
go great!!
continue the your journey for better tommorow
great work sir
Keep watching
nice box)))))))
Thank you 🤗
matibay ba yung 1550k
Yap
Yap
box size please!!!!!!!
20x24x30 inches
2 thumbs up...........>>>>>
how much all\\\
very nice... keep it up==
Thanks a lot
ayus yan, gawa din ako
go,go,go,go,good work...
basta ako YES! ako dyan
👍👍👍
great work
Thanks!