Lithium-ion rechargeable battery, charging in a constant voltage constant current system. Charger No-load voltage is a deep discharge battery check if below 2.9V per cell 0.1ltmA after charging at a certain time than 3.0V per cell stop Check voltage imbalance in every cell battery voltage, if abnormal voltage stop One is a single cell voltage of 4.2V or 4.1V or more when the stop
Regulations limit the supply voltage with a constant voltage + LM317 current cap of + LM393 to detect and stop the current termination charge is a simple enough. And probably not fully charged.
LM317 Li-Ion Charger Schematic
Fast-charger lithium ion rechargeable battery pack for three cell LM317 Li-Ion Batteries Fast Charger Circuit:
Password: 320volt.com
Published: 2009/01/18 Tags: battery charger circuit, power electronic projects
Roland DG CMU-800 Midi Modification PIC16F876
Roland DG CMU-800 SYNTH Drum midi device midi controller for the property prepared by 16f876 microcontroller circuit Taking into account the built-in console, PIC16F876 using a simple configuration was possible. MIDIPICUSART Once he is in the MIDI signal optocouplers, PIC’s USART receive function. PICPORTADIN SYNCLED—PORTBCMU-800—PORTC PIC is the PORTA DIN SYNC output and LED indicator, PORTB the CMU-800 data bus, PORTC is used to control address bus.