Circuit Diagram

KA3S0880RFB--the thick film integrated circuit of the switch power supply

Published:2011/7/13 20:04:00 Author:Borg | Keyword: thick film, integrated circuit, power supply

KA3S0880RFB is a thick film integrated circuit of the switch power supply produced by Samsung, which is widely used in Hisense interaction large color TV sets, etc.1.function featuresKA3S0880RFB contains sub-circuits of oscillating, synchronization and over-current/voltage/heat protection circuit, whose typical application circuit is shown in figure 1-1. 2.pin functions and dataKA3S0880RFB is in single 5-pin in-line package, whose pin functions and data are listed in table 1-1. Table 1-1. pin functions and data of KA3S0880RFB   (View)

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KA3S0680R--the switch power supply thick film integrated circuit

Published:2011/7/13 20:11:00 Author:Borg | Keyword: switch power supply, thick film, integrated circuit

KA3S0680R is a switch power supply thick film integrated circuit produced by Samsung, which is widely used in Haier-Gaomei large screen color TV sets, such as GBTV-29FA RGBTV-29TA, 29F18 and so on.1.function featuresKA3S0680R contains the switch pipe, switch pipe motivation amplifier circuit, fault detection signal process circuit, synchronous signal process circuit and other additional circuits.2.pin functions and dataKA3S0680R is in 5-pin single in-line package, whose pin functions and data are listed in table 1-1.   (View)

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Chopper amplifer circuit made by TA7505

Published:2011/7/13 19:39:00 Author:leo | Keyword: Chopper, amplifer circuit

Picture 1 is a chopper amplifier made by TA7505, which contains a chopper circuit, synchronous rectifying and modulating circuit. The switch component of chopper and synchronous rectifier mainly adopts FET tube, such as VT1 (3SK38) in picture 1(a). This tube is a kind of FET tube which changes to stop state when the voltage is 3V(the maximum value). VT5 and VT6 can make up of multivibrator circuit which can generate the square wave voltage. The square wave voltage passes the trigger made by VT3 and VT4 to adjust the wave shape, after which the signals come to modulate the VT1 grid.   (View)

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K9450M--the sound 1st intermediate bandpass filter integrated circuit

Published:2011/7/13 21:24:00 Author:Borg | Keyword: intermediate bandpass, integrated circuit

K9450M is the sound 1st intermediate bandpass filter integrated circuit, which is widely used in Konka large screen color TV set of S serial.1.function featuresK9450M integrated circuit contains PAL/NTSC switch control circuit, sound 1st intermediate bandpass filter circuit and other additional function circuits, K9450 is often working with K627K/D, which is used to separate the sound and picture signals, so the sharpness of the picture and the purity of the sound can be improved.2.pin functions and dataK9450M is in the 5-pin single in-line package.   (View)

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phone off-hook reminder

Published:2011/7/12 0:33:00 Author:chopper | Keyword: phone, off-hook, reminder

Fixed phone users may not hang up the telephone receiver well and effect the phone call after using the phone.This example describes the phone off-hook reminder,and it can not only send a sound beep to remind the user of hanging up the phone in time, but also has the role of telephone line anti-theft alarm. Principle of the circuitThis phone off-hook reminder includes supply power circuit,phone line monitoring circuit,and sound alarm circuit and so on,just as picture 6-206 shows.   (View)

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WE9142 Microcomputer dialing integreated circuit

Published:2011/7/13 19:41:00 Author:leo | Keyword: Microcomputer, dialing integrated circuit

WE9142 is a kind of microcomputer dialing integrated circuit which is widely used in all kinds of telephones.The integrated circuit WE9142 adopts 22-pin dual-line package. Pin function and related data are show in the picture, please check.   (View)

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VS1001K MPS decoding integrated circuit

Published:2011/7/13 19:41:00 Author:leo | Keyword: MPS decoding integrated circuit, VLSI Solution

VS100K is a new type of MPS decoding integrated circuit made by VLSI Solution, which is widely used in all kinds of MPS players. Function Features:The integrated circuit VS1001K contains stereo analog converter DAC and earphone driving circuit. It supports PCM data input and has VS-DSP processor as well as ROM and RAM. Besides, it has constant connecting data interfaces as the picture shows. Pin Function:It adopts 28-pin SOIC dual-line and 49-pin BGA package. All information is shown in the picture.   (View)

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The central door lock circuit of Santana 2000 (gasoline injection engine)

Published:2011/7/12 23:00:00 Author:Borg | Keyword: central door lock, Santana 2000

Figure: The central door lock circuit of Santana 2000Li(gasoline injection engine)159-central lock device; 160-right door lock motor; 161-rear shell lock motor; 162-right door shutting micro switch; 163-door close micro switchWhen the key of the driver door is pushed or pulled, or the door is opened (or closed) by the key, other car doors can also be controlled synchronously, and other keys can control the corresponding lockers (open or close), whose functions are irrelevant with the igniting switch.   (View)

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telephone on-hook reminder(II)

Published:2011/7/12 0:24:00 Author:chopper | Keyword: telephone, on-hook, reminder

This example describes telephone on-hook reminder,and it can send a sound di when the telephone is on-hook to tell the users that the telephone has been hung up. Principle of the circuit This telephone on-hook reminder circuit includes trigger circuit,inverter,delay circuit,audio oscillator and audio output circuit,just as picture 6-207 shows.   (View)

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The electric control rear-view mirror circuit of Santana 2000

Published:2011/7/13 20:37:00 Author:Borg | Keyword: electric control, rear-view mirror

Figure: The electric control rear-view mirror circuit of Santana 2000 (gasoline injection engine)154-left/right rear-view mirror selecting switch; 154a-transverse regulation(left/right) twist switch; 154b-longitudinal regulation(upper/lower) twist switch; 155-the regulating motor of right rear-view mirror (upper/lower); 156-the regulating motor of right rear-view mirror (left/right); 157-the regulating motor of left rear-view mirror (upper/lower); 158-the regulating motor of left rear-view mirror (left/right); There is a rear-view mirror on either side of the front doors, which is convenient for the driver to see the cars, people and road behind the car.   (View)

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motor headlight auto-changing controller circuit(I)

Published:2011/7/12 0:40:00 Author:chopper | Keyword: motor, headlight, auto-changing controller,

Principle of the circuit The motor headlight auto-changing controller circuit consists of light control circuit and control implementation circuit, which is shown in figure 7-1. 　　Light control circuit is formed by the photosensitive transistor Vl,transistor V2,potentiometer RP,capacitors Cl and C2 and the time-base integrated circuit IC. 　　Control implementation circuit is formed by 3 feet inner circuit of IC, relay K and diode VD.   (View)

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MC13007-Single television small signal processing circuit

Published:2011/7/13 19:42:00 Author:leo | Keyword: Small signal processing circuit, 200 linear circuits

MCI3007 is a kind of integrated circuit made by Motorola. It contains 200 linear circuits and 200 logic circuits. It can be used to clear all small signals processing circuit except accompanying sound signals. It contains intermediate frequency amplifier, video detector, video processing circuit, noise control circuit and so on. Its inner circuit diagram and pin functions are shown in the picture. The function of MC13007 has following features: Video detector adopts whole wave detecting circuit. Usually, the common wave detector uses synchronous wave detecting circuit but MC113007 uses balanced diode whole wave detecting circuit. It has multi function video processing circuit. Its oscillator circuit adopts double horizontal frequency mode.   (View)

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The Santana 2000 power window circuit

Published:2011/7/13 21:12:00 Author:Borg | Keyword: Santana 2000, power window

Figure 1. The Santana 2000 power window circuit (gasoline injection engine)143-left door glass direction switch; 144-left door glass direction motor; 145-left door glass direction relay; 146-door window direction lighting lamp; 147-door window direction lighting lamp resistor; 148-right door window direction switch; 149-glass direction lighting lamp; 150-glass direction lighting lamp relay; 151-right door window direction motor; 152-heat electric breaker(20A); 153-glass direction motor time relay   (View)

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K6XH-the communication single chip computer integrated circuit

Published:2011/7/13 23:04:00 Author:Borg | Keyword: communication, single chip

K6XH is a communication single chip computer integrated circuit, which is used in the main control circuit of phones.1.function featuresK6XH contains the pulse/dual audio compatible dialing circuit, keypad switch encoding/decoding circuit, LCD drive control circuit, buzzer drive control circuit, mute control circuit, charge detection circuit, communication control circuit, clock oscillating circuit and other function circuits.2.pin functions and dataK6XH is in 90-pin package.   (View)

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agricultural non-tower pressure-charged water feeder(1)

Published:2011/7/13 21:29:00 Author:chopper | Keyword: agricultural, non-tower, pressure-charged, water feeder

Rural water supply system adopts the non-tower pressure-charged water supply device, and drawback of this water control device is that the control contact of electric connecting pressure gauge is easy to ablate,thus thepressure will get out of control.This example describes the agricultural non-tower pressure-charged water feeder,and the control circuit adopts l2V DC voltage power supply, and the current through control contact of electric connecting pressure gauge is small,thus can avoid the control contact erosion.The circuit is stable and reliable,and production costs is low. 　　The principle of circuit　　This agricultural non-tower pressure-charged water feeder circuit is formed by the power circuit and the detection control circuit,which is shown in figure 4-152.   (View)

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CIC9140--the microcomputer dialing integrated circuit

Published:2011/7/13 10:26:00 Author:Borg | Keyword: microcomputer dialing, integrated circuit

CIC9140 is the microcomputer dialing integrated circuit,which is widely used in all types of phones.1.function featuresCIC9140 contains the dual audio/pulse compatible with dialing circuit, key switch signal encoding/decoding circuits and so on.2.pin functions and dataThe pin functions and data of CIC9140 is shown in table 1. Table 1 pin functions and data of CIC9140   (View)

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The air-conditioning system circuit of Santana 2000(see as figure 1/2)

Published:2011/7/13 20:25:00 Author:Borg | Keyword: air-conditioning system, Santana 2000

Figure 1 The air-conditioning system circuit of Santana 2000 (gasoline injection engine)36a-light switch lighting lamp; 121-over-load relay; 122-over-load relay switch; 123-micro switch; 124-thermostat; 125-air-conditioning compressor electromagnet clutch; 126-low-voltage switch(2bar); 127-the electromagnet valve of idle speed adjuster; 128-air-conditioning (H,V and A) control switch; 129-warm air speed switch(4 gears); 130-ventilation system air-conditioning resistor; 131-air-conditioning warm air blower; 132-air-conditioning relay In the figure, there are 5 key switches on the air-conditioning system.   (View)

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The wiper and washer of Santana 2000 (see as figure 1,2)

Published:2011/7/13 20:49:00 Author:Borg | Keyword: wiper, washer, Santana 2000

Under the contactor of off-load relay, there are fuses of F15, F16, FI7 and F18, and the relay 118 is under control of the igniting switch cylinder(which is cut off when the circuit is working normally), when the wiper switch 55 at the gear 1 , the current from the relay 118 is led to the 1st brush of the wiper motor 57 by the fuse F15, and it is sent to the armature rotor and the 2nd brush ground by black-green wires of 3 and 1. When the wiper switch is at the gear 2 , the current is coming out from 53b , then it is sent to the 2nd and 3rd brush grounds through green-yellow wires of 1 and 3.   (View)

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CD9632--the field scanning output integrated circuit

Published:2011/7/13 22:10:00 Author:Borg | Keyword: field scanning, integrated circuit

1.function featuresCD9632 contains the field scanning motivation signal amplifier circuit, field scanning output power amplifier circuit, field blanking pulse generating circuit, field scanning pump power supply circuit and other additional circuits.2.pin functions and dataCD9632 is in 7-pin single in-line package, whose pin functions and data are listed in table 1. The data in the table are from the test results of Konka T2587(1) large screen color TV sets. Table 1. Pin functions and data of CD9632   (View)

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The e-control circuit of the heat release electric sensor

Published:2011/7/14 6:31:00 Author:Borg | Keyword: e-control circuit, electric sensor

This is the e-control circuit of the heat release electric sensor. In the circuit, A1 is the amplifier circuit whose gain is 60dB, which amplifies the weak signal of the heat release sensor; A2 is the active filter whose block frequency is about 10Hz, which is used to filter the noise and wave; A3 is the comparator circuit, whose comparing value is set by RP1, A3 outputs the constant LEV signal; A4 is the single stable multiple resonance oscillator, which is used to make sure the circuit only reacts tothe signal of one sensor within a certain time when there are more than one heat release sensors.   (View)

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