Circuit Diagram

Controllable Voltage Regulator Circuit Diagram

Published:2011/9/14 0:25:00 Author:Zoey | Keyword: Controllable, Voltage Regulator, IC

As a controllable voltage regulator integrated circuit, S1-3090C is widely used in audios, DVD players and so on. 1 Features S1-3090C IC consists of a +9 V voltage regulator circuit, a power on / off control circuit, and other auxiliary function circuits. 2 Pin functions and data S1- 3090C adopts pin-4 single integrated circuit package,which has been used in Fine Refine King rear projection TVs, its pin functions of the integrated circuit and relevant data have been listed in Table 1.   (View)

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Video Preamplified Circuit Diagram

Published:2011/9/14 0:26:00 Author:Zoey | Keyword: Video Preamplified

SID2141X is a kind of video preamplifier IC and it is widely used in a variety of domestic and imported color monitors. The SD2141X integrated circuit contains a three-color signal processing circuit, a three-color gain control circuit, and a blanking signal processing circuit,tec. The circuit uses 20-pin dual in-line package, and the circuits have been used in LGCB56lBN color monitors, its foot arch function and data of the integrated circuit have been listed in Table 1.   (View)

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Frequency Synthesizer Circuit Diagram

Published:2011/9/14 0:26:00 Author:Zoey | Keyword: Frequency, Synthesizer Circuit Diagram

SIM8821XO2 -GOTO is a frequency synthesizer integrated circuit, it is widely used in Samsung's CDMA series cellphones, such as the Samsung A399 mobile phone. 1 Features SIM8821XO2-GOTO integrated circuit contains the first local oscillator, the second local oscillator sampling and filtering circuit, and frequency synthesis data,start, clock circuits,phase detector power supply circuit, as well as some other auxiliary function circuits. 2 Pin Functions Pin functions of SIM8821XO2 -GOTO IC have been listed in Table 1.   (View)

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Bus-Storage Integrated Circuit

Published:2011/9/14 0:12:00 Author:Zoey | Keyword: Bus Storage, Integrated Circuit

ST7C08 is usually used to support to the use of CPU (M37221M6) for achieving control functions of digital TVs . 1 Features ST7C08 mainly consist of data recovery IC, parallel/ serial conversion, electrically erasable, programmable read-only memory, a high voltage (5V) pump / timing, start / stop logic, serial logic control, X / Y decode, address comparison, the data byte address / count and data output / recognition logic and other components. The inner circuit diagram and typical application circuit of the integrated block have been shown in Figure 1. 2 pin functions and data ST7C08 and its pin functions of the integrated circuit and relevant data have been listed in Table 1.   (View)

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Three-channel Power Amplifier Circuit

Published:2011/9/14 0:08:00 Author:Zoey | Keyword: Three-channel, Power Amplifier

STK392-110 is the thick-film hybrid power amplifier integrated circuit produced by Sanyo company, they are used in the Changhong SlPT28A Rear Projection TV convergence to adjust the signal for power amplification. STK392-110 IC-circuit block diagram has been shown in Figure 1, the integrated circuit pin functions and data has been listed in Table 1.   (View)

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Thick Film Power Amplifier Circuit

Published:2011/9/14 0:04:00 Author:Zoey | Keyword: STK392-020, Thick Film, Power Amplifier

STK392- 020are the thick film power amplifier integrated circuits produced by SANYO Company, they are widely used in rear projection TV in the adjustment of the convergence error signal for power amplification. 1 Features STK392 -020 integrated circuit includes 3 BTL power amplifier circuits, preamplifier and power amplifier power supply circuit, and other auxiliary function circuits. 2 pin functions and data STK392 -020 ICadopt 22 feet single in-line package, they are used in Changhong Fine and Refined King on the rear projection color TV (circuit number N505), the integrated circuit pin functions and data has been listed inTable 1 . Tip: STK392 a 020 ① - ③ feet should not take the negative power supply   (View)

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Working Circuit of the Wiper, Air-heater, Radio and Tape Player of City Hunters in Beijing——2020SG Cross-country Car

Published:2011/9/13 23:56:00 Author:Zoey | Keyword: Working Circuit , wiper, air-heater, Radio and Tape Player, 2020SG Cross-country car

1 Cassette players A BJ20205G4x4 light off-road car is equipped with a stereo cassette player and two speakers 26 and 28, when the ignition switch is in the Ⅰ, Ⅲ position, d can be used.2 Cigarette LighterThe dashboard cigarette lighter 16 ison the left of glove compartment, when lightint the cigarettes, it should be pressed first, when its automatic pop-up (power), they can used, be careful and do nottouchthe heated position of the cigarette lighter. 23 - heater motor; 23, - defrost switch; 24 - washing pump; 24- - wiper switch (including washing switch); 25 - wiper motor; 26 - cassette players; 27 one day line; 28 - speaker; 29, 30 - air fog lights; 31 - fog lamp switch; 32,33 - brake light; 34 - brake light switch; 35 - fl   (View)

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Circuit of Direct Current Motors Driven by LMD18245

Published:2011/9/13 23:49:00 Author:Zoey | Keyword: Direct Current, Motors, Continuous Current

Although the index input bycontinuous current of LMD 18245 is less than 1/3 of SA60, it can adopt various connection methods to control the motor in different ways, so as to get different control performances. Following picture shows the motors example driven by bipolar input. Therein , the chopping time is 1.1RC. RW refers to the current sensor resistance. UREF is the reference voltage of D/A inverted circuit, D is the input voltage of D/A inverted voltage.IS is the maxmium current of the motor. Distinguished from SA60, there is no PWM circuit in the LMD 18245 Chip. An exterior contrller is needed to control the rotation speed and rotation direction through the duty cycle of PWM. The connection method has been presented in following picture.   (View)

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Multipurpose fan with music and colored lamp control circuit (PT2127)

Published:2011/9/14 6:35:00 Author:nelly | Keyword: Multipurpose, fan, colored lamp, control

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Multipurpose fan with wave sound control circuit (WT8101)

Published:2011/9/14 6:41:00 Author:nelly | Keyword: Multipurpose, fan, wave sound, control

As shown in the circuit, its core component is the integrated circuit WT8101 which is especially used by fans.   (View)

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Single-phase motor winding series and parallel of three-speed circuit

Published:2011/9/14 7:01:00 Author:nelly | Keyword: Single-phase, motor, winding, series and parallel, Three-Speed

The speed regulation method shown in the pictureis comparetively new. It has so many advantages, such as the wide speed regulation range, large low-speed startup torque. It also saves a reactor, which makes the cost of motor lower. It has been applied to the motor of the fan which is called energy efficient fan.   (View)

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Single-phase motor winding tap speed regulating circuit

Published:2011/9/14 6:47:00 Author:nelly | Keyword: Single-phase, motor, winding, tap, speed regulating

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Multi-point control motor brake circuit

Published:2011/9/14 6:45:00 Author:nelly | Keyword: Multi-point control, motor, brake

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Ceiling fan with speed regulating indicator light circuit

Published:2011/9/14 9:49:00 Author:nelly | Keyword: Ceiling fan, speed regulating, indicator light

Adding a working indicator light to the ordinary ceiling fan not only can display the speed regulating gears, but also can provide the weak light illumination for the room, as shown in the picture. L is the inductance coil; SA is the speed regulating switch; “1”～“5” are the air-speed gears; off means stop. H is the speed regulating indicator light, which is going to be added. It is the small light with 0.3A/6.3V, which can be added by serial connecting to the input.   (View)

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Single-phase shading coil type motor reactive resistance speed regulating circuit

Published:2011/9/13 23:57:00 Author:nelly | Keyword: Single-phase, shading coil type, reactive resistance, speed regulating

As the picture shown, the reactive resistance is in series of motor, adjusting the regulating switch SA. When the key of “fast” is touched, the reactive resistance is not connected, and then the motor operates at full voltage, so the speed is the fastest; When the key “middle” is touched, some inductance coil will be serial, so the speed is intermediate; when the key of “slow” is touched, all the L coils are connected to the stator winding, so the speed of the motor is slowest.   (View)

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Single-phase shading coil type motor reactive resistance speed regulating circuit with indicator lamp

Published:2011/9/14 Author:nelly | Keyword: Single-phase, shading coil type, reactive resistance, speed regulating, indicator lamp

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Single-phase shaded pole winding tap speed regulating circuit

Published:2011/9/14 0:18:00 Author:nelly

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Single-phase motor auto main and auxiliary winding voltage reducing and speed regulating circuit

Published:2011/9/14 0:24:00 Author:nelly | Keyword: Single-phase, auto, winding, voltagereducing, speed regulating

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Low noise linear voltage regulator integrated circuit made by MAX8860

Published:2011/9/13 20:00:00 Author:leo | Keyword: Low noise, linear voltage regulator, integrated circuit

MAX8860 is a kind of low voltage difference, low noise linear voltage regulator integrated circuit. Its main features are as followings: Input voltage: 2.5 V to 6.5 V Dual mode: fixed voltage output and set voltage output. The output current can reach 200mA in either of these two modes. Low output noise: the value for nose is 60 mYrms. Power supply controlProtection circuit It is always used in communication devices and DSP central power supply, PCMCIA card, portable electric devices and so on. It has 1.25 V base power supply, differences amplifier, MOSFET driver, P channel MOSFET adjusting tune, inner feedback circuit and so on.   (View)

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Sub-ultrasonic fan speed regulating controller circuit

Published:2011/9/13 8:36:00 Author:nelly | Keyword: Sub-ultrasonic, fan, speed regulating, controller

Sub-ultrasonic fan speed regulating controller can control the switch and speed of the fan, and it also can control the other appliances. The emitting end applies the sub-ultrasonic emitter, which is the main feature of this device. It also has no limitation about direction, and it is durable and do not need power source. The sub-ultrasonic received by the piezoelectric buzzer is amplified by V1, frequency selected by L, C4, and then amplified by V2m. it outputs pulse. You can mold the emitter when operating. The collector V2 will output a positive pulse triggering signal which is counted by the decimalism counter CD4017. It applies the Q1, Q2, Q3 gears of CD4017.   (View)

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