PowerChecker-KM003C
PD-Interpreter: an easy look at charging conversations →
Turn charger capabilities into a clear report.
Record advertised PDO/PPS capabilities and measured voltage/current.
Include changes when another port is connected in the same report.
START HERE
今日は何を調べますか？
KM003Cがあっても、なくても。3つの入口から始めましょう。
デモ表示・ログ解析では機器にコマンドを送りません。
Use POWER-Z KM003C to read USB PD charger capabilities, EPR and cable identity. Record charging voltage/current and save reports.
Read the connection and feature guidePower timeline
VBUS IBUS確認できたこと
EVIDENCE FIRST充電器が対応する電圧・最大出力
0 PDOケーブルだけを確認しました。充電器の対応表は前回取得分です。更新するには「充電器の情報を読み直す」を押してください。
対応表は、この充電器が出せる電圧・出力の条件です。今その電力で充電している意味ではありません。
| 番号 | Type / SPR · EPR | Voltage | 電流・電力の上限 | 最大出力 | Raw PDO |
|---|---|---|---|---|---|
| Query Source Capabilities to display PDOs. | |||||
PDOs observed during this acquisition. Multiple power allocations may be included. Missing Serial object numbers or raw PDOs are shown as “—”. Maximum PPS voltage × current is not measured output power.
充電の状態を確認する
見るだけ充電器の情報と、実際に充電しているときの記録は別です。まず「今わかること」と「次にすること」を確認しましょう。
調べる記録・時間を変更
次にすること
測定値と判定の詳しい根拠
電圧変動は中央値の5%、隣接変化は0.25 Vまたは前値の5%超を目安に表示します。低下閾値と最大測定間隔は測定設定に従います。規格適合・高周波リップル・充電速度の合否判定ではありません。
積算電力量・容量
Wh / mAh有効な隣接サンプルを台形積分します。最大測定間隔を超える区間、不正値、時計変更・逆行をまたぐ区間は除外します。逆方向は負の値です。
PD protocol
0 messagesUSB recording includes voltage/current samples on the same device clock as PD traffic.
Scroll the PD table vertically and horizontally.
| Time (µs) | SOP | Message | Role | Data |
|---|
Start a PD recording.
Vbus(V) in PD CSV uses integer mV for Utility compatibility. CRC/EOP verdicts and signal duration are unavailable. Sweep ADC CSV and USB PD recording use different time bases.
PPS / AVS voltage transition analysis
This setting runs analysis after PD recording or a sweep with PD recording ends. Use “Analyze this recording” for existing recordings.
Supports SPR PPS, SPR AVS and EPR AVS. PD traffic and voltage measurements must share the same device clock. SPR requests are identified using preceding Source Capabilities; requests without a recorded PDO are not guessed.
Analyze after PD and voltage/current recording ends.
Changing the plot range does not change the analysis window or results.
Measured points are shown; lines do not bridge gaps over 100 ms. Bands show the analysis thresholds: target ±1% and observed plateau ±0.5%. This is not a compliance verdict.
| Request # | Type / PDO | Direction | Start → target V | Plateau V | ACCEPT ms | Movement ms | PS_RDY ms | V at PS_RDY | Target settle ms | Plateau settle ms | Slew V/s | Result / flags |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Not analyzed yet. | ||||||||||||
Scroll the analysis table vertically and horizontally.
Criteria and interpreting results
Times are relative to the request. Target settling is the first sample maintaining ±1% of requested voltage for 80 ms; plateau settling uses ±0.5% of the observed stable voltage. Movement requires two consecutive samples changing by at least 50 mV or six times the noise MAD. A stable plateau requires 400 ms and at least six samples. Gaps exceeding 100 ms prevent settling across the gap. Slew is the average relative to the plateau. Missing or indeterminate values are “—”. No interpolation is used; estimates depend on KM003C sampling intervals.
EPR AVS uses the CLI’s default analysis criteria. SPR PPS / SPR AVS support is a Web extension. Correlation stops at the next request, reset or rejection. Fixed / Battery / Variable supplies are excluded. Short holds or small voltage changes may leave movement and plateau indeterminate.
Compare changes
Export report
SHARE READYSave a report including test conditions, observations and untested items. Demo reports are marked as synthetic.
Preview report
データを取得するとプレビューできます。