Electronic Modules - Page 1
Forum section: electronics / general

author: AliRezaJoodi
author_rank: Contributor
timestamp: April 27, 2023, 05:03:06 pm
content: It's an open source archive of simple and useful electronic modules.Source Link:GitHub.com/AliRezaJoodi/Electronics_ModulesNote:I did many electronics projects during over past ten years. I want to publish my personal electronics projects on the GitHub. Likewise, I will publish simple files to start, then main projects.Here will be just informing. Please, follow and star me on the GitHub.Thanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: April 30, 2023, 10:36:23 pm
content: DC to Differential ConverterOpen-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> PowerSupply_Converter_DCtoDifferentialI used it for reading thermocouple voltage. It converts thermocouple DC voltage to differential voltage. I tested it for many times and worked great.Please follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 02, 2023, 06:39:32 am
content: 1~5V to 4~20mA ConverterPicture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Converter_1-5Vto4-20mANote: It's not fast but useful for a dimmer.Please follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 03, 2023, 08:20:56 pm
content: Frequency to Voltage Converter.Picture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Converter_FrequencyToVoltagePlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 04, 2023, 03:36:20 pm
content: AC Voltage DetectorPicture:Schematic:Simulate:Source Link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Detector_AC-VoltagePlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 06, 2023, 04:42:29 pm
content: Phase DetectorPicture:Schematic:Simulate (with PWM output):Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Detector_PhaseDifferenceNote: I tested it for many times and worked greatPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 07, 2023, 10:17:27 pm
content: Zero Crossing Detector for 1-Phase DimmerPicture:Schematic:Simulate:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Detector_ZeroCrossing_1PhasePlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 14, 2023, 11:13:25 pm
content: Zero Crossing Detector for 3-Phase DimmerPicture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Detector_ZeroCrossing_3PhaseThree of these blocks can be used for a three-phase dimmerI tested it for many times and worked great.Please follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 15, 2023, 07:20:46 pm
content: Relay DriverPicture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Driver_Relay_1CHPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: barshatriplee
author_rank: Regular Contributor
timestamp: May 17, 2023, 03:34:58 pm
content: Thanks for sharing the github link.

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 17, 2023, 05:34:17 pm
content: Isolated Relay DriverSchematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Driver_Relay_1CH_IsolatedPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 19, 2023, 07:38:49 am
content: Thyristor Gate Driver Using TLP521Picture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Driver_Thyristor_TLP521Note: Use isolated power supply for the thyristor sideNote: It usable for a triac gatePlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 20, 2023, 09:49:01 am
content: Triac Gate Driver Using MOC3021Picture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Driver_Triac_MOC3021Note: MOC302x series have no zero-crossNote: MOC304x series have zero-crossPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 21, 2023, 01:43:31 pm
content: ULN2003 DriverSchematic:Picture:User Manual:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Driver_ULN2003_1Layer==> Driver_ULN2003_2LayerNote: Included schematic and PCB layout with ProteusPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: floobydust
author_rank: Super Contributor
timestamp: May 21, 2023, 10:18:06 pm
content: Please add ULN2003 pin 8 GND to schematic.

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 24, 2023, 12:53:22 pm
content: Isolated DC Motor Direction Controller with Two RelaysSimulate:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Driver_DcMotor_DirectionController_IsolatedWithRelayD4: Schottky DiodePlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 25, 2023, 07:23:34 am
content: AT24Cx I2C EEPROM ModulePicture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> EEPROM_AT24CxNote: With LEDs to display reading and writing modes.Please follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: floobydust
author_rank: Super Contributor
timestamp: May 25, 2023, 07:30:39 pm
content: Quote from: AliRezaJoodi on May 24, 2023, 12:53:22 pmWhat is zener D4 doing other than making smoke?

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 26, 2023, 08:58:04 am
content: Thanks for your messageMy mean was a Schottky DiodeI'll edit it

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 26, 2023, 11:30:08 pm
content: TTL UART to RS232 ConverterPicture (1L):Picture (2L):Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Interfacing_UARTtoRS232_1Layer==> Interfacing_UARTtoRS232_2LayerNote: An old converter but usefulPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 28, 2023, 08:51:52 am
content: TTL UART to USB Converter Using CH340GOpen-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Interfacing_UARTtoUSB_CH340GPicture:Schematic:It can be used as a programmer when you make a arduino with AVR and bootloader.Note: Included schematic and PCB layout with AltiumPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: Infraviolet
author_rank: Super Contributor
timestamp: May 28, 2023, 11:52:14 pm
content: Looks like some of them could make quite a useful library of ideas, good work on assembling your collection.

author: AliRezaJoodi
author_rank: Contributor
timestamp: May 30, 2023, 11:53:46 am
content: TTL UART to USB Converter Using FT232RLPicture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Interfacing_UARTtoUSB_FT232RLPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: floobydust
author_rank: Super Contributor
timestamp: May 30, 2023, 09:41:24 pm
content: Quote from: AliRezaJoodi on May 30, 2023, 11:53:46 amIf you're going to publish circuits on the Internet, your blog, it's important that they work. Otherwise people come here and post that it is not working, whaaaa why? and waste a lot of people's time.Copying datasheet circuits and then adding mistakes is really annoying.Why does your PCB not match your schematic? Where's the switch, what does it do? Missing resistors on USB DP, DN, electrolytic capacitor etc.I thought for 3.3V logic interfacing, VCC I/O connects to 3.3V ? Why do you leave VCC I/O not connected.FT232R datasheet

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 01, 2023, 06:00:59 pm
content: Thank you for feedbackEdited

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 01, 2023, 06:18:44 pm
content: 4~20mA Analog Input With A Relay Switch For Disable InputPicture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> AnalogInput_CurrentSource_DisableInputWithRelayIf we turn off a board power supply while a ADC input connect to 4~20mA external source, The microcontroller does not turn off completely.So, after turn on the board power supply, the micro will behave unreliably.It was my experience about control board that use a ATmega2560 for induction furnace. I had to use a switch before ADC for disconnect the external source.I tested it for many times and worked great.Please follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 03, 2023, 07:59:12 am
content: Protected 4~20mA Analog InputSimulate:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> AnalogInput_CurrentSource_ProtectedInputA circuit that design by Jefferson Pehls for Protection a 4~20mA Current Input.I just tried to understand it in Proteus.Please follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanksSource Link (Jeferson Pehls):https://www.linkedin.com/feed/update/urn:li:activity:7042709425547001856/

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 04, 2023, 09:27:23 am
content: Isolated High Power Full-Bridge Inverter with MOSFET SwitchesSchematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> Inverter_FullBridge_MOSFETPlease follow and star me on the GitHubGitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 12, 2023, 09:38:59 am
content: Electronic ModulesIR Sender and ReceiverOpen-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> IR_Sender==> IR_ReceiverPlease follow and star me:GitHub Account: GitHub.com/AliRezaJoodiLinkedIn Account: LinkedIn.com/in/AliRezaJoodiThanks

author: floobydust
author_rank: Super Contributor
timestamp: June 13, 2023, 02:43:02 am
content: Quote from: AliRezaJoodi on June 04, 2023, 09:27:23 amWhy are you pulse stretching with C4, C5? You don't want overlap in a full bridge or it goes boom. What PWM frequencies is this bridge good for at 300VDC?

author: f4eru
author_rank: Super Contributor
timestamp: June 14, 2023, 10:22:32 pm
content: Seems intended to do stretching the OFF state of the MOS.But really poor bridge design.A really good example of all things what not do do at 300V.- slow optos- too Hi-Z gate drive make it even slower.- no good handling of transients during startup of the charge pumps- Bipolar PWM means really crappy efficiency- no mention of output filters, load type, nor bootstrap supply- generation of VDD2 probably compromised at startup by the huge bootstraps charging without real current limits- discharged C4, C5 generate a short circuit transient to the MOS gates at power up of the 5V -> funny one.- no UVLOs on gate drivers- no rail filtering- no protection, current limit- LEDs of optos directly in paralell.......If it is found to work, it would be a pure luck kind of situation depending on environment.Each one of those points is easily capable to generate an EMS event (Explosive Magic Smoke).Please learn all those topics, and I strongly advise to use real half-bridge driver ICs

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 15, 2023, 06:33:43 pm
content: It was my old archive for UPS.The C4 and C5 is stretching the ON state of the MOSSPWM frequency was under 20KHz (I'm not sure now. I didn't write it)

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 15, 2023, 06:51:37 pm
content: Quote from: f4eru on June 14, 2023, 10:22:32 pmThank you for feedbackI'll study about it

author: ArdWar
author_rank: Frequent Contributor
timestamp: June 18, 2023, 03:45:47 pm
content: "stretching the ON state" on both leg is probably the last thing you want to do on a bridge, let alone at 300VHow it didn't end up in a ball of plasma? You're lucky if it "only" ends up in smoke.

author: AliRezaJoodi
author_rank: Contributor
timestamp: June 25, 2023, 06:41:27 am
content: External WatchDog for AVR MicrocontrollersPicture:Schematic:Open-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> MCU_WatchDogPlease follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks

author: AliRezaJoodi
author_rank: Contributor
timestamp: July 18, 2023, 12:17:19 pm
content: Dialing on the Phone LineOpen-source link:GitHub.com/AliRezaJoodi/Electronics_Modules==> PhoneLine_DialingPicture:Schematic:Please follow and star me:GitHub Account:GitHub.com/AliRezaJoodiLinkedIn Account:LinkedIn.com/in/AliRezaJoodiThanks