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PAL Colour Encoder (TEA2000-V1)
A PAL color encoder and video summer which requires just composite sync and composite blanking inputs, and a 6-bit binary coded input giving the color information. The inputs are organized as 2 bits per primary color with gamma correction automatically applied to the resultant luminance and chrominance levels.
Cyclic A/D converter circuit
The cyclic converter consists of a chain of identical stages, each of which detects the polarity of the input. Step V REF then subtracted from the double entry and the rest if the polarity is correct. The signal is full wave rectified and the rest of V IN - V REF is doubled.
Differential A/D Converter circuit CA3110
By using an op amp BiMOS CA3140 provides good orientation skills for high bandwidth signal input, and can quickly adjust the energy output at its terminal CA33IO WINE. The CA3140 can also lead to near the negative supply rail.
Digital circuit strain with MAX1494
Circuit constituted by the MAX1494 digital strain gauge shown in Figure 5-31. See the bridge by the resistance strain gages, temperature compensation sheet
Brightness display circuit 555
As shown for the brightness display circuit. The circuit consists of light-sensitive sensor, an oscillation circuit, LED display circuit. Wherein the light-sensitive
Using ICL7106-ICL7107 chip liquid crystal display circuit
It shows using ICL7106 / ICL7107 chip liquid crystal display circuit. In this circuit, ICL7106 / 7107 is a signal measurement and A / D converter circuit, an analog input signal by detecting it, amplified to the digital display circuit, the result of the measurement with digital display.
Recording level display circuit
Provided only manual recording level control function, when the circuit is in the recording mode, the recording level as LM3915N was shown.
Pulse signal generating circuit and display
It shows the dynamic AC signal level display drive circuit can be used for audio level display driver.
One light emitting diode display circuit
Light-emitting diodes can be used DC, AC and pulse and other drivers, resistance typical buck LED display circuit as shown in Figure 13-1.
Band decoder circuit diagram
The circuit amplifier and an attenuator control video detector consists of a composition for synchronization channel,
555 tri-state acousto-optical logic circuit
As illustrated, 555 and R4, R5, C1 and so connected as a controllable multivibrator mode, which force reset terminal 4 feet to explore pen, control terminal 5-pin external level high and low logic level input related.
6 digits dynamic display circuit
Shows - typical of six dynamic display circuit. In the figure, the PA 8255 end date display output code. PB port output bit election code. Let the display buffer is DISBUF, then complete
Cheap I2C bus control stereo decoder TDA9853H
Cheap I2c shown as a bus control stereo decoder TDA9853H. Used for a digital mediation function FM radio in stereo decoding circuit after stereo encoding baseband signal by the chip feet into the first through the stereo decoder, de- tune, a voltage-controlled
Five sections of the spectrum display circuit
Is the use of LM324 as a band-pass filter, LB1405 for five-band spectrum display drive display circuit. Point 3 is selected frequency harmonic relationship, their center frequency is 100Hz, 330Hz, lkHz, 3.3kHz, 10kHzo band-pass filter is 0 = IO.KF = o 20 cases
Precision digital timing controller circuit (CC4013, CC440, CC4060, G1555)
Shown for the precision digital timing control circuit. The controller consists of crystal oscillator circuit, a divider, counting circuit, monostable flip-flops.
Multiplicative DA converter IC inexpensive 8 DA circuit
ICi latch is used to lock the digital data clock signal rises ~ Qu holding data port AD7s23 thin film resistor ladder and c- Jing switch 08 constitute 8-bit DAC, the reference voltage
Pressure Transmitter Data Acquisition System circuit 1B31,18 bit A / D converter AD1170 and MCS-51 microcontroller
Pressure transmitter circuit data acquisition system by 1B31,18 bit A / D converter AD1170 and MCS-51 microcontroller
Audio DA converter and amplifier circuit
MP4 audio circuitry is shown, it is by the audio D/A converters and audio amplifier combination circuit, which has a body product circuit simple, suitable for use in small MP4 digital machines.
Digital display circuit configuration
3 shows two kinds of digital display circuit, Total (a) adopt common anode circuit configuration, FIG. (B) the use of common cathode path structure.
Door light emitting logic circuit with CD4069
Logic pen also known as logic detection probe, it is a common tool in the digital circuit detection logic state of each point. Digital circuit logic state is generally divided into three types: namely, a high level "l", the low level "0"
6 static display circuit
6 shows the static display circuit. Figure, 74LS244 as bus drivers, six figures show a public bus, each with an LED display martyrdom latch (such as 74LS273) connected to the code for latching display data to be displayed. Data is displayed on behalf of
8-bit bus control widely used 12-bit DA converter Universal
8 microcomputer data is 8-bit parallel output, in addition to the serial input of D -A converters, in general, have to enter the data into two groups, and to Chen whole. Requir
Typical DA conversion circuit 8
8 shows a typical D/A conversion circuit, which uses DAC0830/DAC0832 chip, the microprocessor will output 8 -bit digital signal into an analog signal.
A typical liquid crystal display inverter circuit OZ965
A typical liquid crystal display inverter circuit (OZ965) It shows a typical liquid crystal display of the inverter circuit, which is mainly controlled by the 02965 chip, the d
The basic structure of the DA converter
A/D converter circuit can be represented by a simplified circuit shown in Figure 4 is a (bit) parallel type A/D converter circuit, the so-called median is the number of bits in
LF356 composed of AD converter
A/D converter is the analog signal into a digital circuit, it has a variety of circuits, as shown in Figures 21-24 is a circuit A/D converter structure, which is the use of a p
ICL7107 chip digital circuit section 2
AC has been shown as a fishing converter input circuit ND conversion Tiger Road. In order to check the AC signal and I was shown, it is provided in the input circuit AC DC conv
AD7730 digital pressure measuring circuit
AD7710/7715/7730 multifunction digital sensor signal conditioning ICs. They integrate a digital interface with the control port, a clock generator, a digital filter, A/modulati
Multiplicative -DA converter electronic attenuator
AD7s23 is an 8-bit multiplication DA converter, the output voltage of the analog input and the digital input of the product. Inside! Unit consists of eight analog switches (cha
Digital lighting circuit
After the SCM execution, Pl output port to bidirectional input 74LS245 driver chips, the same driver each phase of the digital control, according to the information Pl port out
LB1416 36 five sections and Ten-segment level display a
Another common single five lamp drive circuit is: LB1416/26/36, the circuit is a double row of finned-line 14 pin package. Its interior has two input amplifier and five voltage
Power phase sequence display circuit
Any power supply and distribution sector should phase sequence detection Huan Jj means to ensure stable power supply phase sequence unchanged. Any irreversible electromechanica
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
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