Posts Tagged ‘CD4011’

Simple Sound Alarm Generator using CD4011

This is Music Sound Generator circuit. It is basic and simple circuit. By use integrated circuit digital number CD4011 or MC14011 or TC14011,it be nand gate logic. By three this circuit is giving can the sound about 10watt by use 8ohm loudspeakers and use power supply voltage 12V. Friends can lead this circuit into pieces warn have a voice loud periodically. By control on-off the sound has with SW1 or Alarm Actuate Switch. The detail is other a friend sees in the circuit.

Related Links
More circuit about CD4011
More about security circuits
More circuit about Sound Alarm Generator
Simple Metronome using transistor
Emergency power siren 6 watt
Telephone Voice effect Changer
Rain sound effect Generator by 4060
Simple Siren by 2N2907 Transistor

Dry Cell Battery Charger using LM741 and IC4011

This is Dry Cell Battery Charger Circuit. That can use charger battery get that about 12 hour. When apply to power supply 9 volt the equipment that fix in the circuit use for size battery AA. If use the size C or D should devalue of Resistor RX down be 68ohm and should not lead battery come to serial while voltage in cell battery lower 1.6V. The Comparator Circuit with (IC741) control Gate output from Pulse Oscillator at use the integrated circuit CMOS 4011 change Transistor that do infront charger battery until voltage tall 1.6V Comparator Circuit more make LED Flasher warn know for protect Charger battery expire. The next time is if friends have Dry Cell Battery that use be finished already , don’t abandon , try apply new again yes.

Related Links
More Circuit about Li-Ion Battery Charger
More Circuit about dry cell battery recycling
More Circuit about dry cell battery charger
More Circuit by CD4011
Simple Lithium-ion – Lipo Battery Charger
USB-Powered Lithium-Ion Battery Charger by LM3622
Li-ion Battery Charger for Mobile phone by TL431
Lithium Ion – Lithium Poly Charger by LM317
USB Li-ion battery charger
USB Li-ion battery charger by MCP73861
lead acid battery Charger 6V -12V By 555 and LM340
Auto Charger battery 12V with PCB by IC 741

Feedback Regulated, Isolated 9V Supply By IC 4011

This circuit is my variation on Charles floating 9V supply. My design uses feedback regulation instead of a zener shunt regulator to stabilize the output against battery voltage and load variations. Replacing the shunt regulator with feedback control makes the supply more efficient for output loads of less than about 500ua. That might be important if the 9V battery must supply maximum current or needs longer operational life.

Read More Source : http://www.techlib.com/craig/craigs_isolated_9_volt_supply.htm
Thank you.

Related Links
More circuit by CD4011
More Feedback circuit
More about Isolate Ground circuit
12V to 9V 2A step down dc converter using IC 741 and 2N3055
dual power supply 3V,5V,6V,9V,12,15V with LM317,LM337
LM317 Adjustable Regulator For batt 9V
Power Supply A fixed Voltage of 6, 9 or 12V, max output 1A.
5VDC to +12V and -12V Isolated dual power supply
LM2577 Three Output, Isolated Flyback Regulator (link)
Mini Power Supply 9V to Isolated 9V for LCD Panel Meter
Supply 9VDC no transformer
9V 2A Power Supply by 78S09
12V to 9V 2A step down dc converter using IC 741 and 2N3055
power supply regulator mini 9V 0.75A by Transistor