Published:2011/5/11 22:13:00 Author:Rebekka | Keyword: FAW Jiabao , vehicle electrical system
FAW Jiabao CA6350 series vehicle electrical system circuit diagram is shown as above. (View)
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Published:2011/5/11 22:06:00 Author:Rebekka | Keyword: 0-12V/3A power supply, construction circuit
Usually the power supply can not be adjusted form zero volt. The circuit presented here can be continuously adjusted from 0-12 volts, and the circuit is simple. Its sampling is easy and it is easy to imitate. It is very suitable for amateur electronic enthusiasts to use as experiment power supply. Icon device parameters can use icon value. The transformer should have sufficient capacity according to the output power. (View)
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Published:2011/5/11 22:08:00 Author:Rebekka | Keyword: TV standby power supply
5V、0.26A TV standby power supply circuit composed of TNY253P is shown as above. (View)
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Published:2011/5/11 21:42:00 Author:Rebekka | Keyword: 0-30V/2A power supply
0-30V/2V adjustable power supply.This is made for a request of the netizens. She uses a voltage regulator dedicated circuit LM723 (IC1) as the core, output voltage can be adjustable continuously between 0 and 30V by the adjustment of P1. Q1 is used for current drive expansion(It needs to use heat sink). R3 provides the sampling resistor used by the protection circuit. The circuit is simple and reliable. Its regulated performance index is also very good. The device parameters of the circuit is shown in the attached list.
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Published:2011/5/11 1:55:00 Author:Borg | Keyword: Intergrated Circuit, Calling Lines
HT9030 is an intergrated circuit that can recognise and receive calling lines, which is a engery-saving IC adopting CMOS technique. It is commonly used in products receive and display the calling lines and relevent information(such as caller display phones,etc).
1.internal circuit
The HT9030 intergrated circuit contains sub-circuits of demodulation, ring-down test, low voltage test and off-power control, etc, which adopts crystal and pottery oscillators. The internal circuit of its circuit is shown in Figure 1-1.
Figure 1-1 The internal circuit of HT9030 chips
2.pin functions
HT9030 intergrated circuit is pinned dual in-line packages with 16-lead, whose pin functions of intergrated circuits are listed in Table 1-1.
Table 1-1 pin functions of HT9030 intergrated circuits
3.typical application circuit
The typical application circuit of HT9030 chipsis shown in Figure 1-2.
Figure 1-2 The typical application circuit of HT9030 chips (View)
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Published:2011/5/11 21:31:00 Author:Rebekka | Keyword: 0-15V 1A power supply
This is a very unique power circuit. It is not only a simple circuit and low cost, the producing process is also very simple. It is made up with common devices, so it is suitable for electronics enthusiasts to imitate. The output 0-15V of circuit is continuous adjustable, and its output current 1A is very suitable for us to use as experimental power. The voltage regulation is achieved by the R2. Q1 need a radiator when it outputs a high current (such as 1A current). (View)
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Published:2011/5/11 22:12:00 Author:Borg | Keyword: Intergrated Circuit, Analog Switches
HEF4053 is an intergrated circuit of general analog switches, which is widely used in large screen and DLPs, home theaters, wireless phones, videodisc players, computers and their screens to shift signals, such as in Changhong 51PT28A DLP, Desay wireless phones and so on.
1.function features
HEF4053 contains three lines of single-pole double-throw switches which are under control of signals output by microcomputers, by which the signals can be shifted and chosen. The internal circuit of its chips is listed in Figure 1-1.
Figure 1-1 The internal circuit of HEF4053 chips
2.pin functions and data
HEF4053 is encapsulated in dual in-line plastic ways with 16-lead, whose pin functions and data are listed in Table 1-2
Table 1-2 pin functions and data of HEF4053
The relationship between the controller and connecting channels of HEF053 is listed in Table 1-3.
Table 1-3 The relationship between the controller and connecting channels of HEF053 (View)
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Published:2011/5/11 21:55:00 Author:Ecco | Keyword: Low ripple , integrated , regulated power supply
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Published:2011/5/11 21:53:00 Author:Ecco | Keyword: integrated, regulated power supply , NPN , power transistor , extending flowing
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Published:2011/5/11 22:00:00 Author:Ecco | Keyword: Standard , application circuit, low power, integrated regulator , 8-end , adjustable output
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Published:2011/5/11 22:01:00 Author:Ecco | Keyword: High output voltage, integrated , regulated power supply
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Published:2011/5/11 22:17:00 Author:Borg | Keyword: Intergrated Circuit, Recoring, Reproducing
BA775lALS is an intergrated circuit of recording and reproducing produced by Toyo Power Tool Corp.
1.internal circuit and pin functions of BA775Lals
BA775lALS contains sub-circuits of loudspeaker, line amplifier, record amplifier, silence-noise circuit, ALC, reproducing control and recording control, whose internal circuit is shown in Figure 1.
BA775lALS is encapsulatedwith 24-lead, whose pin functions and data are listed in Table 1.
2.the process of the circuit
3.notes for fault repairing
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Published:2011/5/11 22:03:00 Author:Ecco | Keyword: Negative output voltage , integrated , regulated power supply
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Published:2011/5/11 22:05:00 Author:Ecco | Keyword: Glanz , microwave
Glanz WP750A microwave circuit diagram is shown as the chart.
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Published:2011/5/11 22:17:00 Author:Borg | Keyword: Microcomputer, Intergrated Circuit, Single Door
HD44808a04 is a microcomputer intergrated circuit of communication single doors, which is widely used in all kinds of phones.
1.function features
HD44808A04 contains sub-circuits of pulse/two-tone coupling with dialing, key switch signal encoding, signal encoding of phone electrical lock, clock frequency and other application circuits.
2. pin functions and data
HD4480A04 is encapsulated in dual in-line package with 42-lead, whose pin functions and data are listed in Table-1.
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Published:2011/5/11 22:22:00 Author:Borg | Keyword: Intergrated Circuit, Servo-drive
BA6996FP is a servo-driven single door intergrated circuit of laser heads produced by Rom Corp., Japan, which is used as servo-drivers in VCD, SVCD,CVD and DVD.
1.internal circuit
BA6996FP contains sub-circuits of 5-channel BTL and logic control, which can switches all kinds of laser head servo-driven signals into two-way driven voltage to drive all the executing components.
2.pin functions
BA6996FP is encapsulated in dual flat packages with 28-lead, whose pin functions and data are listed in Table 1.
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Published:2011/5/11 22:20:00 Author:Borg | Keyword: Microcomputer, Intergrated Circuit, Single Doors
HD44801A80 is a microcomputer intergrated circuit of communication single doors, which is widely used in all kinds of phones.
1. function features
HD44801A80 contains sub-circuits of pulse/two-tone coupling with dialing, key switch signal encoding, electrical long-distance call lock, display driven control circuit and other application circuits.
2. pin functions and data
HD44801A80 is encapsulated in dual in-line package with 42-lead, whose pin functions and data are listed in Table-1.
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Published:2011/5/11 22:19:00 Author:Borg | Keyword: Electricapparatus, AUTOART, Air-conditioning Systems
(8) radio
TheAM ranges from 51OkHz to 1630KHZ (SHW), sensitivity is less than 32dB; wave frequency of stereo ranges from FM87.5MHZ to 108MHZ, and its sensitivity is less than 15dB; the speed of cassette is 4.75cm/s±3%, Wow and Flutter is less than 0.3% ( WTD.OMS), crosstalk is 30 dB, S/N is 40 dB.
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Published:2011/5/6 4:14:00 Author:Rebekka | Keyword: single chip micro-computer , phone IC
RC8643E is single chip micro-computer phone IC. It can achieve all the featurs of phone except ringing. The in functions and data of integrated circuit are shown in figure 1. (View)
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Published:2011/5/6 4:20:00 Author:Rebekka | Keyword: digital audio decoding , integrated circuit
The functions and data of audio decoder IC PCM1800 are listed in table 1. Table 1 is PCM1800 IC pin functions and data. (View)
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