1. Bu site çerez kullanmaktadır. Siteyi kullanmaya devam etmeniz halinde çerez kullanımı ile ilgili site koşullarını kabul etmiş sayılırsınız. Daha Fazlasını Öğren.
  2. Forum İllegal Uyarısı Forum kuralları gereği forumda video ve illagal paylaşım yapmak yasaktır.Program Arşivimizde ise kısıtlanmış sürüm yada dağıtımı serbest olan (trial - freeware) yazılımlar yayınlayınız..Aksi takdirde mesajlarınız silinecektir..

High Efficiency Synchronous Switch-Mode Charger Controller – Solar Battery Charger

Konusu 'Güç Kaynakları - Besleme Devreleri' forumundadır ve uydudoktoru tarafından 14 Ocak 2015 başlatılmıştır.

  1. uydudoktoru
    Offline

    uydudoktoru Aktif Üye Yönetici Yönetici

    Katılım:
    13 Haziran 2009
    Mesajlar:
    2.142
    Ödül Puanları:
    38
    [​IMG]

    Description
    The bq24650 is a highly integrated switch-mode battery charge controller. It provides input voltage regulation, which reduces charge current when input voltage falls below a programmed level. When the input is powered by a solar panel, the input regulation loop lowers the charge current so that the solar panel can provide maximum power output.

    The bq24650 offers a constant-frequency synchronous PWM controller with high accuracy current and voltage regulation, charge preconditioning, charge termination, and charge status monitoring.

    The bq24650 charges the battery in three phases: pre-conditioning, constant current, and constant voltage. Charge is terminated when the current reaches 1/10 of the fast charge rate. The pre-charge timer is fixed at 30 minutes. The bq24650 automatically restarts the charge cycle if the battery voltage falls below an internal threshold and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

    The bq24650 supports a battery from 2.1V to 26V with VFB set to a 2.1V feedback reference. The charge current is programmed by selecting an appropriate sense resistor. The bq24650 is available in a 16 pin, 3.5×3.5 mm2 thin QFN package.

    [​IMG]
    Features

    • Maximum Power Point Tracking (MPPT) Capability by Input Voltage Regulation
    • Programmable MPPT Setting
    • 5V-28V Input Solar Panel
    • 600kHz NMOS-NMOS Synchronous Buck Controller
    • Resistor Programmable Float Voltage
    • Accommodates Li-Ion/Polymer, LiFePO4, Lead Acid Chemistries
    • Accuracy
      • ±0.5% Charge Voltage Regulation
      • ±3% Charge Current Regulation
      • ±0.6% Input Voltage Regulation
    • High Integration
      • Internal Loop Compensation
      • Internal Digital Soft Start
    • Safety
      • Input Over-Voltage Protection
      • Battery Temperature Sensing
      • Battery Absent Detection
      • Thermal Shutdown
    • Charge Status Outputs for LED or Host Processor
    • Charge Enable on MPPSET Pin
    • Automatic Sleep Mode for Low Power Consumption
      • <15μA Off-State Battery Discharge Current
    • Small 3.5 × 3.5 mm2 QFN-16 Package
    • APPLICATIONS
      • Solar Powered Applications
      • Remote Monitoring Stations
      • Portable Handheld Instruments
      • 12V to 24V Automotive Systems
      • Current-Limited Power Source
     
Yüklüyor...

Sayfayı Paylaş