Bdimg Scraper
Spider read bdimg.com in 3.5 s without a browser and returned 107 lines of clean markdown.
PWMsignalissuperimposedontheneutralvoltage,inducingalargeamountofelectricalnoiseonthesensedsignal.Tosensethisproperlyrequiresalotoffilteringandattenuation.Thefilteringcausesunwanteddelayinthesignal.Theattenuationisrequiredtobringthesignaldowntotheallowablecommonmoderangeofthesensingcircuit.Theresultisapoorsignaltonoiseratioofaverysmallsignal,especiallyatstart-upwhereitisneededmost.Consequently,thismethodtendstohaveanarrowspeedrangeandpoorstartupcharacteristics.Toreducetheswitchingnoise,thebackEMFintegration[5]andthirdharmonicvoltageintegration [6]wereintroduced.Theintegrationapproachhastheadvantageofreducedswitchingnoisesensitivity.However,theystillhavetheaccuracyproblematlowspeed.AnindirectsensingofzerocrossingofphasebackEMFbydetectingconductingstateoffree-wheelingdiodesintheunexcitedphasewaspresentedin[7].Theimplementationofthismethodiscomplicatedandcostly,whileitslowspeedoperationisaproblem.ThenoveldirectbackEMFsensingmethod,whichdoesnotrequirethemotorneutralvoltage,wasproposedin[9][10].ThetruebackEMFcanbeextracteddirectlyfromterminalvoltagebyproperlychoosingthePWMandsensingstrategy.ThePWMsignalsareonlyappliedtohighsideswitchesandthebackEMFisdetectedduringPWMofftime.Theresultingfeedbacksignalisnotattenuatedorfiltered,providingatimelysignalwithaverygoodsignal/noiseratio.AsaresultthissensorlessBLDCdrivercanprovideamuchwiderspeedrange,fromstart-uptofullspeed,thantheconventionalapproachesIntheanalysisconductedin[10],powerdevicesselectionisnotmentioned.Asmatteroffact,powerdeviceshaveimpactontheperformanceofthecircuit.Forexample,forlowvoltageThe same call, in code.
The capture above came back as markdown. These examples add a key, so you get browser rendering, proxies, and concurrency on bdimg.com.
import { SpiderBrowser } from "spider-browser";
const spider = new SpiderBrowser({
apiKey: process.env.SPIDER_API_KEY!,
});
await spider.connect();
const page = spider.page!;
await page.goto("https://bdimg.com");
// No selectors, no schema. Spider reads the page and names the fields.
const data = await page.scrape();
console.log(data);
await spider.close();import { Spider } from "@spider-cloud/spider-client";
const spider = new Spider({ apiKey: process.env.SPIDER_API_KEY! });
const result = await spider.scrapeUrl("https://www.bdimg.com", {
return_format: "markdown",
});
console.log(result);Ready for volume? Get an API key →
Fields you can pull.
Spider names these from the page. The capture above came back as markdown; the same
call with return_format: "json" returns them as keys.
What bdimg.com costs to scrape.
The capture above cost $0.000207 to fetch. Pricing is $1 per GB of pre-transformation bandwidth plus $0.001 per CPU minute, so a page like this one lands at a fraction of a cent. Failed requests are billed at $0.
- Free balance on signup
- No card required to test
- Balance never expires
Run it keyless, no account
More Directories scrapers.
Spotify Main Page Scraper
Extract structured data from Spotify Main Page with automated CSS selectors.
Roblox Landing Page Scraper
Roblox landing page metadata and cookie banner information.
Mozilla Homepage Data Scraper
A scraper for extracting all useful data from the Mozilla homepage, including site metadata, navigation, and content.
Start scraping bdimg.com.
You already have the call. A key raises the rate limit and turns on browser rendering, proxies, and concurrency. Balance never expires, and top-ups go through secure checkout.