Inverter waveform analysis
Oscilloscope-based inverter switching diagnosis.
Our inverter waveform analysis package is part of the diagnostics line at ev.care — a flat ₹4,499 for roughly 2 hours of focused workshop time. Oscilloscope-based inverter switching diagnosis. The workflow is the same one we use on our own R&D fleet: a stable bay, calibrated tools, and a printed record at the end so you can see exactly what changed. We don't upsell. If the result is "you're fine, come back in a year", that's exactly what we'll write on the report.
What's included
- Three-phase output waveform capture
- Gate-drive timing inspection
- DC-link ripple measurement
- Thermal correlation pass
- Engineer's written verdict
Why this matters
Why inverter waveform analysis matters: skipping it risks discovering a cell-level fault only when range collapses overnight. A ₹4,499 workshop slot today is the cheapest insurance you can buy against that outcome.
How it works
- 1
Pre-check: tyre pressure, 12V state, and ambient temperature noted.
- 2
Diagnostic harness is connected and a clean session is recorded.
- 3
Subsystems are exercised in a known sequence so anomalies isolate cleanly.
- 4
Each finding is photographed and timestamped for your file.
- 5
You leave with a PDF + signed printout and a recommended next step.
What we typically find
From hundreds of inspections — what makes the report.
- Healthy thermals — no hotspots under load
- Minor cell imbalance — well within spec, worth re-checking in 6 months
- Stale BMS firmware lagging the current OEM release
- One DTC stored from a prior charging fault, not currently active
How to prepare
- Plan for about an hour of waiting time at the workshop
- Charge the vehicle to at least 50% the night before
- Note down any specific symptoms with rough time of day
Equipment we use
- Thermal imaging camera (320×240 minimum)
- Insulation-resistance tester (megohmmeter) rated for HV packs
Certifications
- ARAI-certified workshop
- IMI Level 3 EV diagnostic
Transparent pricing breakdown
No hidden charges. This is exactly what makes up your bill.
Labour & technician time 2 hours | ₹2,474 |
Diagnostic & instrumentation | ₹1,350 |
Consumables & report | ₹675 |
| Total | ₹4,499 |
What customers say
“Got a printed report that I could actually show my dealer. Fair pricing and the technician took the time to explain every number.”
FAQs
Will you open the inverter?+
Only if needed and only after written approval.
How long?+
Allow 2 hours.
Are you OEM-authorised?+
We're independent — we use OEM specs but aren't a dealership.
Who needs this
Intermittent power-cut faults, juddering under acceleration, controller error codes.
Related services
Ready to book inverter waveform analysis?
Fixed price ₹4,499 — no surprises. Or describe a different problem and we'll match the right service.