Board-dat/OPM/OPM1181-dat/OPM1181-dat.md
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-## Setup
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+## Set charged current at
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0.15V / 0.05 R = 2.4A
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Chip-cn-dat/CONSONANCE-dat/CN3768-dat/CN3768-dat.md
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# CN3768-dat
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+
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+## Features
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+
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+- Wide Input Voltage: 6.6V to 30V
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+- Complete Charger Controller for 12V Lead-Acid Battery
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+- Charge Current Up to 4A
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+- High PWM Switching Frequency: 315KHz
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+- Fixed Over-Charge Voltage
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+- Charging Current is programmed with a sense resistor
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+- Automatic Conditioning of Deeply Discharged Batteries
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+- Automatic Recharge
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+- Charger Status Indication
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+- Soft Start
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+- Battery Overvoltage Protection
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+- Operating Ambient Temperature －40°C to ＋85°C
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+- Available in 8 Pin SOP Package
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+- Pb-free , RoHS Compliant, and Halogen Free
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+
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+
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+## info
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+
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The CN3768 charging system incorporates several automatic features to optimize battery health and longevity.
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**Deeply discharged batteries** are initially trickle charged at 17.5% of the programmed constant charge current. This continues until the cell voltage reaches 75% of the regulation voltage in over-charge mode.
Tech-dat/acturator-dat/motor-dat/coreless-motor-dat/coreless-motor-dat.md
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## ref
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-- [[motor-dat]]
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\ No newline at end of file
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+- [[motor-dat]] - [[motor]]
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\ No newline at end of file
Tech-dat/acturator-dat/motor-dat/motor-FPV-dat/motor-FPV-dat.md
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- 1x 1504 3800KV (3 mounting holes)
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- 4x 1504 3800KV a set (3 mounting holes)
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-- 4x 1504 3800KV + insurance a set (3 mounting holes)
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+- 4x 1504 3800KV + insurance a set (3 mounting holes)
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+
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+## What Does 1400KV Mean in an FPV Motor?
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+
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+In FPV drones, **KV** is a motor specification that indicates the motor’s speed constant.
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+
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+---
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+
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+### ⚡ Definition of KV
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+- **KV (RPM/Volt)** = How many **Revolutions Per Minute (RPM)** the motor will spin **per 1 Volt applied**, without any load (no propeller).
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+
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+For example:
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+- A **1400KV motor** spins **1400 RPM per Volt**.
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+- If powered by a **4S LiPo (14.8 V)**:
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+
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+ 1400 KV × 14.8 V ≈ 20,720 RPM (no load)
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+
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+### 🔧 What It Means in Practice
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+
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+1. **Lower KV (e.g., 1400KV)**
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+ - Spins slower per volt.
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+ - Provides more **torque** (good for larger props, longer flight times, heavy drones, cinewhoops).
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+ - Better for **efficiency** and carrying loads.
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+
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+2. **Higher KV (e.g., 2800KV, 4000KV)**
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+ - Spins faster per volt.
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+ - Provides less torque, but more **speed**.
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+ - Good for **small props, racing, and high agility**.
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+
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+---
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+
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+### 🛠️ Typical Use Cases
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+- **1400KV motors** are usually found on:
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+- **Cinewhoops** with 3–5 inch props.
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+- **Long-range FPV drones** where efficiency and endurance matter.
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+- Drones designed to carry heavier cameras (e.g., GoPro).
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+
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+---
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+
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+### ✅ **Summary**:
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+A **1400KV FPV motor** means the motor spins about **1400 RPM per volt** (unloaded). It is a **low-KV motor** designed for **larger props, more torque, and efficiency**, rather than raw speed.
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+
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+## ref
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+
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+- [[FPV]] - [[FPV-motor]]
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\ No newline at end of file
app-dat/RC-dat/FPV-dat/FPV-dat.md
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- [[battery-pack-dat]] - [[power-dat]]
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-- [[sensor-dat]]
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+- [[sensor-dat]] - [[motor-dat]] - [[motor-FPV-dat]]
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- [[FPV-accesories-dat]]
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power-dat/battery-rechargerable-dat/Lead-acid-battery-dat/Lead-acid-battery-dat.md
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+
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+## charge board
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+
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+- [[OPM1181-dat]]
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+
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Batteries store the energy produced by your solar panels for later use.
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## Types: