Published:2012/12/12 0:37:00 Author:muriel | Keyword: Digital Volume Control
View full Circuit Diagram | Comments | Reading(640)
Published:2012/12/12 0:28:00 Author:muriel | Keyword: Tone Control circuit
View full Circuit Diagram | Comments | Reading(2130)
Published:2012/12/11 0:04:00 Author:Ecco | Keyword: Alarm , pyroelectric sensor
The circuit is composed of amplifier, comparator and an output control part. According to Faraday's law, person's body temperature is about 37 ℃, radiation infrared wavelength is about 10μm, the pyroelectric sensor selects P7178 with 7 ~ 20μm sensitive wavelength range. A1 and A2 are selected low noise, low loss CMOS op amp μPC358, and it is connected to band-pass filter composed of RC to prevent the entry of the noise and error signal, extracting only a signal when the human body moves. A3 and A4 constitute a comparator.
(View)
View full Circuit Diagram | Comments | Reading(1443)
Published:2012/12/11 0:38:00 Author:muriel | Keyword: Automatic, Load Sensing, Power Switch
View full Circuit Diagram | Comments | Reading(1134)
Published:2012/12/11 0:35:00 Author:muriel | Keyword: Wire Loop, Alarm
View full Circuit Diagram | Comments | Reading(585)
Published:2012/12/11 0:33:00 Author:muriel | Keyword: Video Stabilizer, MacroVision Removal
View full Circuit Diagram | Comments | Reading(1125)
Published:2012/12/11 0:32:00 Author:muriel | Keyword: Touch Switch
View full Circuit Diagram | Comments | Reading(0)
Published:2012/12/11 0:30:00 Author:muriel | Keyword: Stepper Motor, Controller
View full Circuit Diagram | Comments | Reading(665)
Published:2012/12/11 0:29:00 Author:muriel | Keyword: Simple , Two Speed Contactor, DC Motor, Controller
View full Circuit Diagram | Comments | Reading(940)
Published:2012/12/11 0:28:00 Author:muriel | Keyword: Simple Touch, Switch Circuit
View full Circuit Diagram | Comments | Reading(1109)
Published:2012/12/11 0:28:00 Author:muriel | Keyword: Simple Servo, Controller
View full Circuit Diagram | Comments | Reading(900)
Published:2012/12/11 0:26:00 Author:muriel | Keyword: Pulse Width, Modulation DC Motor, Control
Often, people attempt to control DC motors with a variable resistor or variable resistor connected to a transistor. While the latter approach works well, it generates heat and hence wastes power. This simple pulse width modulation DC motor control eliminates these problems. It controls the motor speed by driving the motor with short pulses. These pulses vary in duration to change the speed of the motor. The longer the pulses, the faster the motor turns, and vice versa. (View)
View full Circuit Diagram | Comments | Reading(830)
Published:2012/12/11 0:25:00 Author:muriel | Keyword: Pine Racecar Victory Judge
View full Circuit Diagram | Comments | Reading(622)
Published:2012/12/11 0:24:00 Author:muriel | Keyword: Low Voltage, Alarm
View full Circuit Diagram | Comments | Reading(1535)
Published:2012/12/11 0:23:00 Author:muriel | Keyword: Digital Keypad, Combination Lock
View full Circuit Diagram | Comments | Reading(809)
Published:2012/12/11 0:22:00 Author:muriel | Keyword: AC Motor, Speed Controller
View full Circuit Diagram | Comments | Reading(1247)
Published:2012/12/10 0:57:00 Author:muriel | Keyword: IR Remote , Switch Circuit
View full Circuit Diagram | Comments | Reading(678)
Published:2012/12/10 0:48:00 Author:muriel | Keyword: 12VDC , Fluorescent Lamp Driver
View full Circuit Diagram | Comments | Reading(718)
Published:2012/12/10 0:46:00 Author:muriel | Keyword: Automatic , Headlight , Brightness Switchs
View full Circuit Diagram | Comments | Reading(587)
Published:2012/12/10 0:11:00 Author:Ecco | Keyword: DC motor , servo control
In the circuit, when E, O are input DC voltage, the motor will be moved to a position corresponding with the voltage. The potentiometer connected to the same coaxially of motor is used as position feedback. When the given voltage is equal to 1k potentiometer wiper contact voltage, the differential amplifier output is zero, so the motor is stationary; Otherwise, the motor will be transferred or reversal according to the size of the signal.
(View)
View full Circuit Diagram | Comments | Reading(3377)
Pages:41/312 At 204142434445464748495051525354555657585960Under 20 |