百佳泰于2023年6月9日獲得USB-IF協(xié)會授權(quán)，正式取得USB Power Delivery EPR認證資格。相關(guān)認證要求的測試項目以及測試設(shè)備如下：

目前可取證的USB Power Delivery EPR產(chǎn)品種類尚有限制，USB-IF要求認證產(chǎn)品只能夠有一個USB Type-C? port為EPR capable source port。以下兩項目前無法取證的產(chǎn)品為例：

1. 產(chǎn)品上除了有EPR capable source port也有EPR capable sink port
2. 產(chǎn)品上除了有EPR capable source port也有SPR capable source port

除了上述限制外，另一點須留意的是：因為EPR的AVS為必需要支持的功能,?所以不允許不支持AVS的EPR capable source port取證。

最新USB-IF compliance updates如下：

一?Deprecation of EHCI Testing. USB2CV and EHCI IOP

二?Decrease to One Test Equipment Solution for SPR Products

注意事項：EX-350只支持Protocol相關(guān)測項, 故需要另外用其他設(shè)備補測Physical & Power相關(guān)測項

三?The USB-IF has recently confirmed that the RFI tests will not be applicable to hubs for the time being

注意事項：The temporary waiver can be granted by USB-IF until February, Y2024

四 FRS & USB4 should be run in the latest USB Power Delivery CTS for informational purpose

五?TEST.PD.PROT.ALL3.8 in the latest USB Power Delivery CTS

注意事項：
Respond with the correct revision:?Pass
Respond with Not Supported:?Temporary Waiver
Respond with nothing:?Fail

六 COMMON.CHECK.PD.9 in the latest USB Power Delivery CTS

PD CTS update 詳細信息：

PD Spec. update詳細信息：

注意事項：The CTS will always be testing against the most current version of the base CTS. Any failures relating to previous versions?will go through the waiver process

七?Define Vbus slew rate measurements in the latest USB Power Delivery CTS

詳細信息：

? Affected Test item
? PD.PS.SRC.1 Multiple Request Load Test
? PD.PS.SRC.2 PDO Transitions
? PD.PS.SNK.3 Multiple Request Load Test Post PR Swap

? Vbus slew rate measurements (Appendix E)
? Turn all filtering and sample averaging off and work only with the raw signal samples
? Collect data samples with rate at least 20uS/Sample
? Start collecting signal samples after receiving Accept Message and before sending the last bit of GoodCRC Message. Record the Voltage Level as V1
? Stop collecting signal samples upon receiving PS_RDY Message. Record the Voltage Level as V2. – ???Calculate the difference ΔV = |V2 – V1|
? If ΔV < 3.5V, the slew rate measurement could not be accurately calculated, and the measurement disregarded.
??Find the first sample that exceeds V1 + 0.1*ΔV for the Positive Transition (V2>V1) or getting below V2 + 0.9*ΔV + for the Negative Transitions (V2< V1) and corresponding sample number Sn_A from the last bit of GoodCRC– point A
??Find the first sample that exceeds V1 + 0.9* ΔV + for the Positive Transitions or getting below V2 + 0.1*ΔV + for the Negative Transitions and corresponding sample number Sn_B from the last bit of GoodCRC – point B
? Find SR = (Vpoint_B – Vpoint_A)/(Sn_B – Sn_A)*R

八 Remove the monotonicity requirement

詳細信息：

• Affected Test item
  SPT.1 Load Test in USB Type-C and PD Source Power Requirements CTS
• If USB-IF QuadraMax reports the monotonicity issue, the vendors can ignore it and no waiver is required

九 Update to PPS Requirements

詳細信息：

• Affected Test item
  SPT.6 PPS Voltage Step Test in USB Type-C and PD Source Power Requirements CTS
• If USB-IF QuadraMax reports the min voltage issue (3.3V), the vendors can request a wavier

USB Type-C?and USB-C? are registered trademarks of USB Implementers Forum.

若您想更了解USB-IF compliance updates，或是有任何USB Power Delivery EPR認證需求，歡迎立即填寫咨詢窗口，將有專人盡速與您聯(lián)系。