Published:2011/5/17 7:52:00 Author:Borg | Keyword: integrated circuit, storage
AT24C08 is an integrated circuit of a storage, which is the memory chip of Changhong 51PT28A back projection color TV and TMP87CS38N single door microcomputer.1.function featuresAT24C08 contains 12C general circuits, E2PROM electrically erasable programmable ROM and digital byte address/calculator and other circuits. The internal circuit of it is shown in Figure 1.
Figure 1 internal circuit of AT24C08.2.pin functions and dataAT24C08 is in 8-lead dual in-line package, whose pin functions and data are listed in Table 1.
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Published:2011/5/17 8:53:00 Author:Borg | Keyword: auto-antenna, Buick Century
Usually, we raise or descend lifts by using reversing current of permanent-magnet direct current motors, and control the open circuit by course switches or overload protectors, when the antenna raise to the top or come down to the ground, the lift will stop automatically.
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Published:2011/5/13 21:47:00 Author:Borg | Keyword: integrated circuit, digital reverberation
BA5096 is an integrated digital reverberation circuit of single door CMOS, which is commonly used in CD,VCD,DVD and all kinds of stereo system as processors of digital reverberation signals.1.The internal circuit and pin functions of BA5096BA5096 contains A/D converters and D/A converters. The delayed time is under the control of micro-processors. There is a VCO circuit that generates the clock in it , and the clock can be adjusted into a proper frequency. The IC is in 28-lead dual line package,whose pin functions and data are listed in Table 1.
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Published:2011/5/13 11:45:00 Author:Borg | Keyword: 4-channel, servo-driven
BA5983F-E2 is an integrated 4-channel servo-driven circuit, which can convert servo control signals into drive voltage to drive the executing parts of DVD player servomechanisms.The internal circuit of BA5983FM一E2 is as shown in Figure 1, which is in 28-lead flat package with cooling fins. The pin functions and data are listed in Table 1.
Figure 1 the internal circuit of BA5983FM一E2
Table 1 pin functions and data of BA5983FM一E2 (View)
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Published:2011/5/17 21:07:00 Author:Nicole | Keyword: Motor, electronic governor controller
The circuit work theory
This motor electronic governor controller circuit is composed of SCR VT, diode VD1, VD2, bidirectional trigger diode VD, LED VL1, VL2, capacitors C1, C2, resistors R1-R8, speed regulation switch S and motor M, the circuit is shown in the figure 8-62.
When the speed regulation switch S gear is changed, the charge-dischange rate of capacitor C is changed, then the SCR VT conduction angle is changed too. The voltage on both sides of C1 will trigger and turn on VT by VD, the AC voltage on both sides of motor M can be changed by changing the conduction angle of VT, then M's running speed is changed too.
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Published:2011/5/13 12:14:00 Author:Borg | Keyword: decoding, integrated circuit
ES4108is a integrated decoding circuit of single door which is specially produced for VCD players by ESS Corp., USA.1.function featuresES4108 can decode SVCD and couple with VCD, in which there are simplified assemble RISC micro-processors of 32 bit orders and 32 bit data. It is based on the multimedia processor, and contains audio and video systems, and computing function chips of Hall decoding.
Table 1-1 the internal circuit of ES41082.pin functions and data
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Published:2011/5/17 20:41:00 Author:Nicole | Keyword: Motor, electronic governor controller
The circuit work theory
This motor electronic governor controller circuit is composed of power supply circuit, time control/trigger pulse generator circuit and control implement circuit, the circuit is shown in the figure 8-61.
The power supply circuit is made of depressurization capacitor C5, steady voltage diode VS, rectifier diodes VD2, filter capacitors C1.
The time control/trigger pulse generator circuit consists of time base integrated circuit IC, control switch S1, timing/voltage regulation selection switch S2, resistors R1-R3, potentiometers RP1, RP2, capacitors c2-c4.
The control implement circuit is composed of resistor R4 and SCR VT.
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Published:2011/5/13 8:50:00 Author:Borg | Keyword: 2-channel, bilateral-control, motor drive
BA6193 is a 2-channel bilateral-control integrated circuit of motor drive produced by Toyo Corp., which is often used in VCD, SVCD and CVD single/multipleplayers as motor drives.1.the internal circuit BA6287N contains logic control circuit and drive circuit, whose internal circuit is as shown in Figure 1.
2.pin functionsBA6287N is in 16-lead dual in-line package, whose pin functions and data are listed in Table 1.
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Published:2011/5/13 8:54:00 Author:Borg | Keyword: voltages, wire points, Xiali
The potential values between the points are as shown in Figure 4.
Figure 4 voltage valuesbetween wire points and connectors of Xiali 8A-FEengine whileECU is normally working.
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Published:2011/5/16 4:14:00 Author:Borg | Keyword: detection circuit, Santana
(1)Input the function code of 0l at idling speed after connecting V.A.Gl551 fault detecter, then choose engine electric sprayer control detection gear , the words fast-speed data delivering, assisting function selection xx will come out on the screen, i.e
(2)Input function code of 08(read testing data), press Q key to confirm, then the words read the testing data, assisting to input the team No. , i.e
Since this is to judge if the engine computer can tell the different conditions, so input the code of 04 and press the key of Q to confirm, then the data on team 04 will be shown on the screen.
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Published:2011/5/13 8:28:00 Author:Borg | Keyword: wire color, Xiali cars
The codes of wire color in the circuit of Xiali cars are as follows in Figure 5.
Figure 5. The codes of wire color in the circuit of Xiali cars
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Published:2011/5/16 4:51:00 Author:Borg | Keyword: integrated circuit, digital signal, D/A converter
CXD2598Q is a very-large scale integrated circuit(VLSI) which produced by Sony Corp.. It is manufactured on the basis of CXD2585Q, which combines filters of 8 bit, 1 bit D/A converter and low-pass filter with digital signal processor and digital servo processing circuit. The circuit is widely used in Figure 1-1.1.Function featuresCXD2598Q digital signal processing circuit is fixed with digital PLL technology and super error-correcting algorithm, which can do EFM demodulation to the input RF signals. The internal circuit of if is shown in Figure 1.
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Published:2011/5/13 7:57:00 Author:Borg | Keyword: FSK, demodulation, wireless phones
FX602 is an integrated frequency shift keying(FSK) demodulation circuit of wireless phones, which is used in caller display system of wireless and wiring phone at home and abroad.1.the internal circuitFX602 is often used with microcomputer systems to fulfill the functions of FSK.
Figure 1-1 the internal circuit of FX602
2.pin functionsFX602 is in 16-lead dual-line plastic package, whose pin functions are listed in Table 1-2.
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Published:2011/5/12 22:48:00 Author:Fiona | Keyword: the square root circuit
Circuit function
Square root circuit is used as a part of the true RMS conversionin and vector operations loop in the analog computing circuit, it can obtain the output voltage of EO =- √ 10 Z, the input voltage of Z 0 to positive and negative 10V, its output voltage is 0 -10V and 0 ~ 10V. Circuit Work When the circuit is used as multiplication IC,feedback the output to the X, Y input, then input signal from the Z input, so that the multiplication unit is equal with feedback circuit connected to the OP amplifier.
Diode D1 connected to the output is necessary to prevent saturating when the Z input voltage approaches 0. (View)
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Published:2011/5/17 3:37:00 Author:Michel | Keyword: Multifunction Charger, Two
Multifuntction charger introduced in the example charges lithium-ion rechargeable battery,nickel-hydrogen battery,nickel-pick battery with constant current.It can charge two pieces of batteries at a time and become supplementary charging when the batteries are fully charged.Circuit's Work PrincipleThis charger is composed of power supply circuit and charging circuit and it's showed as the picture 5-64.Power supply circuit is composed of mains switch,S1,fuse plug,mains transformer,T,commutation diode,VDl-VD4,filter capacitor,Cl and C2,three-terminal IC,IC1,resistor,R1,and regulation resistance,RP. (View)
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Published:2011/5/16 3:35:00 Author:chopper | Keyword: automatic batch scale, photosensitive
When light is dark,the dark-current is tiny,and 3DG6 as well as 3DG12 stops.The relay is of attonity.When the light is available,3DG6 as well as 3DG1 is conductive and relay actuates.Blanking door is controlled by the relay to realize the purpose that controlling baiting as the desired value.2CP12 is used to prevent the back-emf made by the release of relay.This automatic batch scale can fix value by scale mark of 0.5kg between 0 and30kg.The precision can reach one in a thousand.
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Published:2011/5/17 4:05:00 Author:Sharon | Keyword: Hotbox, Overheating Protection
Figure 1 is a schematic circuit of hotbox overheating protection circuit. Under normal circumstances, adjust RP1 so that Ui ≥ 2Uc / 3, and position 7's output is adjusted from high potential to low potential. K then opens its normally closed contacts and cut off power for equipment running to protect the bearing or bearings. (View)
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Published:2011/5/16 19:18:00 Author:Christina | Keyword: frequency counter, 10H2, 2MH2
The 7208 seven-stage decimal counter can be used as the frequency counter, it has the latch and multiplexing functions, and it has the direct digital driving circuit and the display driving circuit. 7207IC 6.5536MHZ crystal oscillator's output frequency is divided by 2K to create the 1600HZ square wave for the multiple conversions of the calculator and the monitor. After the frequency demultiplication, this circuit produces the 0.1S and 0.01S calculation measurement selective passing signal and the reset command pulse, modification command pulse. RCA company's 3130 operational amplifier can be used to optimize the input signal.
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Published:2011/5/16 21:26:00 Author:Sharon | Keyword: Am Modulation, Collector Modulation
AM waveform and the modulation
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Published:2011/5/16 20:48:00 Author:Sharon | Keyword: One-way, Amplitude Limiting
What shows in the figure is the One-way Amplitude Limiting Circuit. It's a circuit that can limit the amplitude of output signal. (View)
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