Fast charging common detailed explanation
Fast charging common detailed explanation
(Glossary) The world of smartphone charging is rapidly advancing and filled with new terms, so here is a brief explanation.
- Fast charging: An abbreviation for quick charging. It is also referred to as rapid charging, and in docomo, it is called high-speed charging, but since the abbreviation does not fit well, we have standardized it as fast charging here. Description of fast charging operation: Built-in QC/PD compatible IC charger → QC/PD cable with an additional signal line → When charging a smartphone: - When the smartphone is QC/PD compatible, the charging voltage progresses as follows: DC 12V 1.5A → 9V 2A → 5V 3A. As charging progresses, the IC control changes the charging voltage from 12V to 5V, protecting the smartphone while charging in about one hour. - When the smartphone is not QC/PD compatible, charging is possible only at 5V. Moreover, since the charger/cable is designed for high current, it can charge faster than the typical 1A charger/cable that usually comes with smartphones. Note: Caution against overheating on the smartphone side!
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basic information
- USB Type-C: A new generation USB standard that is not compatible with regular USB (Type A) / Has a fast charging signal C-C line, enabling fast charging control with built-in IC supporting PD/QC / Type-C cable is required. - QC 3.0: Quick Charge version 3.0 / Fast charging control standard for Android / QC cable is required. - PD 3.0: USB Power Delivery version 3.0 / Fast charging control standard for iPhone 8 and later / PD cable is required. - Configuration of Android QC cable: QC compatible USB charger (Type C port / Type A port) ⇒ Type C / Type A terminal - QC wire with one signal line - Micro USB male terminal / Type C male terminal ⇒ (QC compatible smartphone). - Configuration of iPhone PD cable: PD compatible Type C charger ⇒ Type C terminal - PD wire with one signal line - Lightning male terminal ⇒ (PD compatible iPhone 8 and later).
Price information
- Wire gauge of electrical cables - allowable current value a The current value that flows is determined by the thickness of the copper wire in electrical cables. For reference, the relationship between AWG gauge # - cross-sectional area SQ mm² - allowable current value a/m is noted. Reference) Copper wire allowable current value data: AWG gauge # - cross-sectional area SQ mm² - allowable current value a/m: 16# - 1.32 - 13a, 18# - 0.81 - 9a, 20# - 0.52 - 7a, 22# - 0.32 - 5.6a, 24# - 0.21 - 4.3a, 26# - 0.13 - 3.2a, 28# - 0.08 - 2.4a
Price range
P1
Delivery Time
P4
Applications/Examples of results
- Copper wire cross-sectional area: Conductor thickness symbol 1. American Wire Gauge (AWG): Uses the American wire gauge standard in inches. 2. Square millimeters (SQ): Uses square millimeters as the unit (mm²). People in the electrical field often refer to SQ as "square" or "ske" in abbreviation (e.g., copper wire cross-sectional area of 1 mm² = 1 ske). - Allowable current value a/m The allowable current value changes depending on the material of the conductor (copper wire) due to variations in electrical resistance. The reference allowable current value is the maximum current value a/m for a pure copper conductor (100% copper wire) with a length of 1 meter. If the conductor is not pure copper but instead tinned copper or aluminum, the allowable current value decreases.
Detailed information
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Various terminals from the left: USB terminal, Lightning terminal, Micro USB terminal, Type-C terminal.
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QC/PD type C line with C-C signal line
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iPhone PD cable
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Type C-C line
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Type C-C line
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Android charging data 2A cable
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Android charging data A-C cable
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Android charging data A-C cable
Company information
アソシエイト トレーディング 土屋 裕 v09018951120 qq3508274141 ttt@zd.wakwak.com
Associate Trading Co., Ltd. will produce products based on the following policies: 1. As a trading company, we generally do not hold product inventory. 2. The transaction terms are: advanced payment; depending on the product, the lead time is approximately 40 days for made-to-order production. 3. Once the order is confirmed, we will issue an order confirmation. 4. Deliveries will be made in installments as much as possible, allowing users to see and try the products themselves while confirming the quality during delivery. 5. Therefore, we ask users to set lead times that allow for as much flexibility in partial deliveries as possible. 6. For users with ongoing transactions, we generally appreciate your understanding of the stabilization of lead times through procurement from multiple companies. 7. In the unlikely event that there are issues with quality, lead time, cost, or transportation, flexible responses can be made through procurement from multiple companies. 8. Our company directly deals with approximately 500 factories in China, so you can trust us to handle your needs with confidence.