Smoothing-capacitor sizing
API · /rectifier-api
Rectifier Ripple API
healthy
4,340 Subscribers
Rectifier ripple and smoothing-capacitor maths as an API, computed locally and deterministically. The ripple endpoint computes the peak-to-peak ripple voltage left on a reservoir (smoothing) capacitor after a rectifier, Vr = I_load/(f_ripple·C), where the ripple frequency is the line frequency for a half-wave rectifier and twice it for a full-wave or bridge rectifier — and it solves for whichever of the load current, the capacitance or the ripple you leave out, also giving the RMS ripple. The capacitor endpoint sizes the smoothing capacitor for a target ripple, C = I_load/(f_ripple·Vr), and the energy it stores. The output endpoint gives the DC output of the rectifier from the transformer RMS voltage: the peak Vrms·√2, minus the diode drops in the conduction path (one for half-wave and centre-tapped, two for a bridge), the average DC voltage and, given the ripple, the ripple factor. Everything is computed locally and deterministically, so it is instant and private. Ideal for power-supply and electronics-design tools, linear PSU, charger and audio-amplifier design, and electronics education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is rectifier ripple and filtering; for Ohm's law, reactance and RC time constants use an Ohm's-law API.
api.oanor.com/rectifier-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 80 ms
- Server probes · 24h
- Subscribers
- 4,340
- active
- Total calls
- 76
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 2,000 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- Peak-to-peak ripple voltage for half/full-wave rectifiers
- Smoothing-capacitor sizing endpoint
- Deterministic local compute, no upstream latency
Starter
€9.00 /month
- 25,000 calls / month
- 5 requests / second
- Hard cap (429 above quota, no overage)
- All rectifier topologies (half-wave, full-wave, bridge)
- Ripple-factor and DC-output voltage outputs
- Capacitor ESR and ripple-current helpers
- Email support
Pro
€24.00 /month
- 150,000 calls / month
- 15 requests / second
- Hard cap (429 above quota, no overage)
- Batch design sweeps across load currents
- Transformer-secondary and diode-drop modelling
- Component-tolerance ripple bounds
- Priority support
Mega
€74.00 /month
- 793,000 calls / month
- 40 requests / second
- Hard cap (429 above quota, no overage)
- High-throughput power-supply design pipelines
- Full smoothing + regulation cascade maths
- 99.9% uptime SLA
- Dedicated engineering support
Built by
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api.oanor.com/xrpl-api
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api.oanor.com/zener-api
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api.oanor.com/rtd-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for Rectifier Ripple API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Rectifier Ripple API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Rectifier Ripple API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Rectifier Ripple API cost?
Rectifier Ripple API has a free tier with 100 calls / month. Paid plans start at €9.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Rectifier Ripple API GDPR-compliant?
All requests to Rectifier Ripple API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/rectifier-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/rectifier-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/rectifier-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/rectifier-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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