Forum - Recent Threads

Pontiac firebird 88 board.

jonazz — Sun, 17 Nov 2019 15:59:47 GMT

Hi Community

I have some few q´s about a board there inside this vintage car.

My car have the digital dash

[View:/resized-image/__size/640x436/__key/communityserver-discussions-components-files/8/contentimage_5F00_123321.jpg:640:436]

The board have a broken componet that i can´t find out what is so i have replace it:

[View:/resized-image/__size/674x899/__key/communityserver-discussions-components-files/8/contentimage_5F00_123322.jpg:674:899]

Here it is? what is it? where can i buy a new one?

[View:/resized-image/__size/1600x900/__key/communityserver-discussions-components-files/8/contentimage_5F00_123323.jpg:1600:900]

Sits there with five legs.

i want to keep the electronics alive for longer and now its starts to become old so want to replace what needed to be replaced.

can the community help me telling me the componets so i can buy new ones.

[View:/resized-image/__size/960x540/__key/communityserver-discussions-components-files/8/contentimage_5F00_123324.jpg:960:540]

[View:/resized-image/__size/960x540/__key/communityserver-discussions-components-files/8/contentimage_5F00_123325.jpg:960:540]

[View:/resized-image/__size/960x540/__key/communityserver-discussions-components-files/8/contentimage_5F00_123326.jpg:960:540]

[View:/resized-image/__size/1600x900/__key/communityserver-discussions-components-files/8/contentimage_5F00_123327.jpg:1600:900]

Hope you alle can help me.

//Jonas Villadsen

RE: Pontiac firebird 88 board.

Jan Cumps — Sun, 17 Nov 2019 21:27:10 GMT

Maybe as on the eevblog, in the repair forum?

A title like “Help to inentify National Semiconductor 1573 TO-220-5 package” could draw attention from the grey beards that frequent the forum.

RE: Pontiac firebird 88 board.

jw0752 — Sun, 17 Nov 2019 21:25:35 GMT

Hi Jonas,

Perhaps you might have better luck finding the whole board in a salvage yard or on a Pontiac users web site than finding just the component. This is likely a common part but it has probably been re-labeled for the automotive market with an OEM part number.

Is the part bad or just broken off? Have you considered cutting away a millimeter of the gray plastic and reattaching leads to the device? Once leads are reattached you could use epoxy to protect the new solder joints.

John

RE: Pontiac firebird 88 board.

Jan Cumps — Sun, 17 Nov 2019 21:07:02 GMT

Looking at the PCB, it’s a 3 pin :

No I’m wrong

RE: Pontiac firebird 88 board.

shabaz — Sun, 17 Nov 2019 17:38:47 GMT

There is a Nat Semi collection of catalogs here:

https://archive.org/details/manuals-nationalsemiconductor

and the 'text' version for each is OCR'd, so Ctrl-F can be done to search for the '1573' value, but it may be hard locating it.

I couldn't find a LM1573 (LM was a popular prefix for NS, for their 'linear monolithic' parts) although in the ballpark of numbering there was a LM1578A, but not in TO-220-5.

(the ballpark doesn't mean you can directly replace it with the other part).

Just speculating, there is also a chance it could have been specifically developed for automotive (and the REL could mean high-reliability? just a guess : (, and perhaps cold be very rare to find.

RE: Pontiac firebird 88 board.

dougw — Sun, 17 Nov 2019 16:47:34 GMT

This is a National Semiconductor part (which has been acquired by Texas Instruments).

The package type is TO-220-5.

TI may be able to help identify it.

Most TO-220-5 parts are switching voltage regulators.

The big chip on the card probably needs 5 volts, so if you have a pinout from that chip you can trace back where the 5 volt power comes from.

This is a typical circuit for a National Semi switching regulator: (the tab is connected to pin 3 - GND)

You can check to see if the circuit around your chip matches this. In particular, look for an inductor.

RE: Will this BMS design work?

michaelkellett — Tue, 23 Jul 2019 14:52:07 GMT

In that case I suggest you write a report as nice as you can with pictures and ask the people at Linear technology/Analog Devices to review your design and pcb layout.

They have some good people and if you butter them up and ask nicely can do you a lot of good. Might even give you some parts.

Will this BMS design work?

yanagibashi — Mon, 22 Jul 2019 14:43:19 GMT

I have been working on this design for the past month or so but i am unsure if it will work, so I am wondering if anyone can point out any mistakes I made in the design.

I based my design on the Analog Devices DC2259A

EDIT: added design and link

Message was edited by: Mason Rollins

Attachments:

[View:/cfs-file/__key/communityserver-discussions-components-files/8/Slave-Rev10c.pdf:15:200]

Slave Rev10c.pdf

RE: Will this BMS design work?

yanagibashi — Tue, 23 Jul 2019 13:53:34 GMT

this is gonna be my internship project but I'm paying for it out of my own pocket so I quite literally cannot afford more than maybe 1 prototype, and I'll be using three of thee to act as a BMS for a EV I converted from gas myself.

RE: Will this BMS design work?

michaelkellett — Tue, 23 Jul 2019 08:12:16 GMT

It's not possible to review a design of this complexity without putting in serious effort - you might get lucky and find some one who has done a similar thing before and will review your design for free but it's not very likely.

I've looked at these parts but never actually used them so I can't offer any detailed critique.

I would suggest that it is staggeringly ambitious to go for a 12 cell design at first bang if you have not used these parts before. If it were my project I'd kick off with a 3 cell design - that way you get a top, bottom and middle cell but only 1/4 the complexity and grief.

So you get to find that you need an extra diode on each cell (or whatever turns out to be wrong) with a lot less pain and cost.

If you are working in a business context there may be people urging you to do it quickly - so they will freak out at the prospect of a prototype, but if this is a commercial project there are serious safety issues in making this kind of thing, and it will take time to get it right.

It would be nice if you gave more context (this is a common problem), if we knew what you were doing and why it would make it much easier to help.

RE: Will this BMS design work?

Jan Cumps — Mon, 22 Jul 2019 21:46:33 GMT

This is the corrected link: https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/dc2259a.html#

RE: Will this BMS design work?

fmilburn — Mon, 22 Jul 2019 20:19:56 GMT

The link to Analog devices in your post is not good. The schematic uses the LTC6811 and the datasheet has a lot of applications information. I am not familiar with this part so won’t comment further but to get good help you should describe your application, where you got the schematic and what if anything was changed, and if there are specific things that concern you.

Frank

RE: Will this BMS design work?

dougw — Mon, 22 Jul 2019 15:52:41 GMT

The design wasn't included in your post. Please add it, otherwise it can't be reviewed.

RE: Will this BMS design work?

fmilburn — Mon, 22 Jul 2019 15:49:38 GMT

Unfortunately your design schematic did not get attached. In addition you should post the origin / basis for your design, the design objectives, and more detail on what your concerns are.

Cypress’ new EXCELON F-RAM for Next-Generation Automotive EDRs

cypresssemiconductor — Thu, 22 Feb 2018 07:15:15 GMT

[View:/resized-image/__size/269x83/__key/communityserver-discussions-components-files/8/contentimage_5F00_93864.png:269:83]

[View:/resized-image/__size/447x252/__key/communityserver-discussions-components-files/8/contentimage_5F00_93865.png:447:252]

Event Data Recorders (EDRs), commonly called “black boxes”, are systems installed in automobiles or heavy vehicles to log and capture technical vehicle and occupant information before, during and after a crash. The data collected by EDRs serve as a strong evidence in accident investigation and legal proceedings, such as defending against lawsuits or recovering costs incurred due to an accident. EDRs are commonly attached to Engine Control Modules (ECM), Airbag Control Modules (ACM), electronic control modules or other systems that store critical vehicle information.

EDRs are rapidly being integrated into camera-based Advanced Driver Assistance Systems (ADAS) Vision Systems to enable some of the most important functions like collision avoidance, and minimizing crash impact and harm to the driver in the event of an accident. EDRs in ADAS Vision systems become even more critical in fully autonomous cars, which are no longer a far-fetched idea, but are rapidly approaching the market place. To enable high-reliability EDRs, automotive manufacturers need high-performance, low-pin-count non-volatile memories to log user and sensor data continuously and to instantly capture system state data, in the case of power loss. Cypress’ new Excelon^TM-Auto family of Ferroelectric RAMs (F-RAM) is purpose-built to meet these challenges and offers a high-speed interface, fast writes and instant non-volatility.

Excelon^TMF-RAM Development Kit to Get Started

The Excelon development kit is a low-cost hardware platform that enables design and debug with Excelon F-RAM using the industry leading Cypress PSoC 63 Line of MCUs. With the on-board low-power PSoC 63 controller and BLE connectivity, the Excelon development kit provides the key components needed to develop a secure and low-power IoT system with local, energy-efficient data-logging with Excelon F-RAM.

Availability

Visit the Excelon^TMF-RAM product page to learn more.

Engineering Sample Availability: 27 February 2018

Excelon^TM F-RAM Development Kit Request: 27 February 2018

Production Availability: Q3’2018

LED软灯条方案D7001/D7002可大幅减少芯片使用数量

power_biso — Mon, 27 Dec 2010 14:02:51 GMT

中心议题：

D7001/7002的典型应用
高性能低成本LED软灯条、护栏管解决方案

解决方案：

LED软灯条方案D7001/D7002可大幅减少芯片使用数量

杨晓鹏：我今天要介绍的是高性能低成本LED软灯条、护栏管解决方案。LED装饰灯的份额逐年扩大，目前已经占据80%的份额。西方的圣诞节会采用大量的装饰灯来装点节日氛围，传统的装饰灯能源消耗很大。而采用LED装饰灯，要比传统照明节能85%，省电性能高，使用寿命长（可达50000小时以上），环保（无汞等有害物质）等优良的特点，确保了LED软灯条在户外，室内装饰照明市场的优异表现。LED装饰灯正成为一种潮流。

D7001、D7002套片是针对LED灯条、护栏管等装饰产品的解决方案，与传统产品相比，该方案具有高性能、高可靠性、设计简洁、低成本等诸多优势，为LED灯条、护栏管等产品升级换代提供了一个更优的解决方案。下面介绍下D7001、D7002的特点：

D7001为具有24路输出的LED驱动芯片，使用32脚5x5mm QFN封装，在软灯条上，这个面积已经很小了；
D7002为总线驱动芯片，使用8脚SOP封装。
应用本方案驱动24路单色LED或者8组RGB全彩LED仅需一颗D7001和一颗D7002。

下图是套片典型应用线路图。D7001可按照恒流及PWM的方式驱动24路。D7002用于接收主控发送的控制数据，并把控制数据传递到下一级D7002，从而实现灯条或护栏管的多级级联。

该方案的特点是有丰富的显示效果：

D7001/7002应用了全新的控制方式并固化了多种预置显示模式，并且可根据需求定制。
D7001/7002芯片可以实现并超越任何现有灯条及护栏管产品的显示效果。
流水灯、渐变、跳变、正反向移位、淡入、淡出、呼吸、七彩平滑过渡等各种显示效果。

更高的可靠性：

D7001/7002每组芯片有24路输出，可以驱动8组RGB全彩LED，大幅度降低了芯片的级联级数，提高了系统可靠性。
D7001/7002总线仅需要两条数据线，而且每级D7002都对总线数据进行了整形和再生和容错处理，总线传输的可靠性就得以大幅度提高。
D7001/7002最大限度的避免了控制信号中断、显示效果混乱以及长距离传输出错等故障。

下面是D7001/7002的典型应用电路图。上面是8颗5050 RGB LED，下面是LED驱动IC D7001和总线传输芯片D7002。外围元件只需要两颗电阻，一颗电容，元件非常少。

下面是一个宽度为15mm，长度为25cm的软灯条PCB，一组D7001/7002及8个5050 RGB全彩LED。PCB上外围器件很少，线路非常简单。

下图是一个护栏管PCB，尺寸80x12mm，此模块可以应用在真八段或真六段护外控栏管上，电源电压可以是12V或24V。

因为D7001/7002软灯条、护栏管方案大幅减少芯片使用数量，下面是驱动8颗RGB LED方案的成本对比。得倍方案的芯片使用两颗，一颗是LED恒流驱动芯片，一颗是总线控制芯片，外围使用2颗电阻，1颗电容，LED灯的焊接点是46个。从对比可看出，得倍方案大幅度的减少了行业同类产品所使用的芯片数量，并简化了电路设计、物料数量及生产工艺，从而节省成本。

RE: LED软灯条方案D7001/D7002可大幅减少芯片使用数量

ling1995 — Wed, 15 Nov 2017 09:52:54 GMT

I think kynix may give you some help,there are many electronics are in stock at kynix including D7001 and D7002.

RE: LED软灯条方案D7001/D7002可大幅减少芯片使用数量

bharathmuthukuri — Mon, 25 Sep 2017 05:06:32 GMT

Hello,

Greeting from Bosch India.

In one of my robotic project we are also have requirement to control LED brightness and color.

So i am looking for a part you mentioned in above post. I google a lot for IC manufacturer but no use.

Can you please help me to get this manufacturer and part as well.

Thanks in advance.

Best regards

Bharath Muthukuri

PI 3 for my car

vetteandgolf — Wed, 20 Sep 2017 02:52:35 GMT

Hi, very new to pi 3 and electronic stuff and have installed everything to make the PI 3 work, now I want to use it to control everything in my project 1981 corvette. (windows, headlamps, windshield wipers ect) What coding and hardware should I use. I want to buy a starter project kit to learn but not sure on what to purchase. Thanks

A Faulty Solder Sucker From Element14 ?

TaylorTronics — Tue, 07 Jun 2016 14:19:49 GMT

I have never bought anything from Element14 that was shoddy or bad, until now!

Welcome to the SOLDER SUCKER from hell.

I have marked the bad bits, A and B.

The A bit, the bit that you unscrew to remove cold solder, removes itself, usually in the middle of a suck.

The other bit, marked B, the bit that you take of when the piston gets jammed with cold solder, also removes itself, usually while I have my glasses in one hand, a wire in my mouth, solder in the other hand, and a 40 pin chip hanging precariously off my strip board.

Element14, you have done yourselfe a disservice, and whoever the idiot was that purchased this product for your company, should take up a hobby, like ELECTRONICS[View:/resized-image/__size/16x16/__key/communityserver-discussions-components-files/8/contentimage_5F00_1577.png:16:16]

Peter Taylor

Attachments:

[View:/cfs-file/__key/communityserver-discussions-components-files/8/Soldere-Sucker.jpg:15:200]

RE: Raspberry Pi Car PC

Former Member — Mon, 23 Nov 2015 00:11:04 GMT

Looks a bit late for "maddtechwf" but food for thought for any other car computer nuts, i have a few old monitors no longer working that now have same method to rescue them and a 15" or 17" work great in a car too.

Reversing camera is great on large screen, only wish i could program the predictive lines when the steering wheel is turned like the Nisan Leaf's screen does.

Raspberry Pi Car PC

Former Member — Tue, 01 Oct 2013 18:27:57 GMT

I recently purchased two raspberry pi's and I wanted to have one to play with in my home and one to run a basic in car pc.

I've loaded a media center os (the name of the os has slipped my mind) and now I'm trying to figure what else I'm going to need to get this to work. I currently have a portable hard drive that I have hooked up to my Pioneer deck but it's a pain to sort through all of my music usig the single din deck.

I'm wondering if anyone can tell me what kind of LCD I can use with the pi. I need a raw screen that I can mold into my dash for a built in effect. Also, does anyone know of any power source that I could use that would help with shutting down the pi when I turn off my car?

RE: Raspberry Pi Car PC

Former Member — Sun, 22 Nov 2015 23:58:43 GMT

I have been building car pc for ages now and i'm now using an android board, the original PC board was atom based and i have a pico power supply that connects to ignition and continuous power.

It fitted into the motherboard socket and allowed for starter motor surge also.

That had 5v as well as 12v connections, but maybe they have similar for Arm devices too.

Or you could use the Pi to power up car and starter like my sons electric car does, use your remote to start computer and open door, put in your pin for safety and add start button for ignition.

I stripped out a 10.1" laptop display, from an old laptop with a slow processor and got lcd driver board and usb touch screen cheap from china.

Connects to HDMI on my board, same as Pi

Blog on TI Behind the Wheel: 360 degree view of the vehicle’s surroundings

Jan Cumps — Sat, 31 Oct 2015 08:07:55 GMT

There's a new post on the TI Behind the Wheel blog:

If seeing is believing… Surround Viewing is experiencing!

The blog is good a start point to learn about video supported driver assistance.

Japanese Engineer Creates the World's Smallest "Car"

spannerspencer — Sat, 08 Aug 2015 08:03:06 GMT

Japanese engineer Kuniako Saito has built a tiny, li-pol battery-powered personal transporter that he's calling "the world’s first car in a bag".

It's a kind of variation on the typical skateboard, and weighs in at around 3Kg (depending whether it's the indoor or outdoor version) and has a distance of about 12 kilometers on a three hour charge.

Okay, at first glance this looks a bit useless and more of a gimmick, but after I watched the video I had to admit -- I was pretty impressed! Particularly the bit where the guy with a trolley full of boxes coasts up a hill with such ease. The designer also mentioned that it'd be useful for people who are pushing a wheelchair, which is an interesting application.

[View:https://www.youtube.com/watch?v=XvG_356itPs:520:333]

Considering there are a lot more ramps everywhere these days, I actually think this could work. Looks like it'll be going to Kickstarter shortly, and I reckon it'll do well (price depending). Check it out, and give us your thoughts below! [View:/resized-image/__size/16x16/__key/communityserver-discussions-components-files/8/contentimage_5F00_1.png:16:16]

Forum - Recent Threads

Pontiac firebird 88 board.

RE: Pontiac firebird 88 board.

RE: Pontiac firebird 88 board.

RE: Pontiac firebird 88 board.

RE: Pontiac firebird 88 board.

RE: Pontiac firebird 88 board.

RE: Will this BMS design work?

Will this BMS design work?

RE: Will this BMS design work?

RE: Will this BMS design work?

RE: Will this BMS design work?

RE: Will this BMS design work?

RE: Will this BMS design work?

RE: Will this BMS design work?

Cypress’ new EXCELON F-RAM for Next-Generation Automotive EDRs

ExcelonTM F-RAM Development Kit to Get Started

Availability

LED软灯条方案D7001/D7002可大幅减少芯片使用数量

RE: LED软灯条方案D7001/D7002可大幅减少芯片使用数量

RE: LED软灯条方案D7001/D7002可大幅减少芯片使用数量

PI 3 for my car

A Faulty Solder Sucker From Element14 ?

RE: Raspberry Pi Car PC

Raspberry Pi Car PC

RE: Raspberry Pi Car PC

Blog on TI Behind the Wheel: 360 degree view of the vehicle’s surroundings

Japanese Engineer Creates the World's Smallest "Car"

Excelon^TMF-RAM Development Kit to Get Started