New Circuits Page 266
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CXA1019 Japan SONY companys high-performance, high sensitivity FM AM radio special manifold. CXA1019 high integration, includes FM/AM tuner circuit, a mixer circuit, a mute cir..
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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 ..
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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...
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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..
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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. ..
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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..
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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..
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32kHz clock oscillator transistor Tun digital path, the clock circuit is indispensable, as shown in FIG. 32 kHz crystal clock oscillator is ..
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As shown using a cheap CD4060 and 32768Hz crystal to produce highly accurate output 60 pulses per second clock source. The principle is 32768Hz pulse after CD4060 divider output..
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Analog electronic clock the whole point of the trigger signal to obtain ..
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As illustrated, 555 and R1, R2, C1 composition controlled multivibrator, its oscillation frequency in addition to the RC time constant related to, but also by the control termi..
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As shown in the clock signal generating circuit as RC, which applies to most of the TTL system. This circuit requires only a 6-inverter set of circuit SN7401 three inverters. T..
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BGl, BG2 composition directly coupled amplifier, BG, BG4 is composed of monostable trigger circuit, without receiving prior to the trigger signal, BG3 saturated conduction, BG4..
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Clock oscillator is typically used digital signal processing circuit and a microprocessor circuit (digital signal processing circuit is a microprocessor). Digital signal transm..
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Brush 6 channel camera power supply circuit (MAX1566-1567) 6 shows a digital camera channel power supply circuit (MAX1566/1567), known by the ring, PWM generation circuit provi..
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Camera power supply circuit Shows the camera power supply circuit, the normal power supply in order to make the camera work properly, the power supply circuit is composed of a ..
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Drawing, Triac V trigger voltage is less than 1V, trigger current less than 30mA...
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DK-5A, DK- 5AD AC power control circuit circuit shown in Figure 6-77. Figure, SBz the closing button, YA line for the closing electromagnet coil, U.,..
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NE555 tour allows just as vibration. } E input pin 3 River) pulse frequency ult / 5 ~ 20Hz Fan Cave weeks bamboo. Barrel section to ridicule steep scheduled for R and C. Value. m transistor 1j and T} Hungary throw success rate system level power output fl1....
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The circuit uses 50 BUZ23 field effect transistors connected in parallel, tube blocking voltage of 100V. Required control power is extremely small, and there will be no second breakdown and conduction zone positive temperature coefficient phenomenon...
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A discrete transistors by the current control circuit diagram of the way ..
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A typical electronic volume control circuit It shows a typical electronic volume control circuit. The circuit is often used in stereo audio devices through the computer (CPU) i..
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A, B and two electric motors (or electronic) allowed simultaneous operation (interlock control). The two motors can (or electronic) of the respective contact normally closed co..
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A. B, C for big power split phase I, A + BC Rang generator phase line, A-A indole path string has a 2H220V/15W bulbs, bulbs recovery as both macro instructions J Sweet World as..
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AC welder is intermittent operation, the intermittent load power consumption during the period up to several hundred watts. AC welder saving controller circuit shown in Fig. Th..
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APM-81 lift the main circuit, the safety circuit and brake circuit: ..
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According to the characteristics of the system, using the drum controller to achieve the above requirements, the design of the ladder as shown in FIG. As follows: 1) C631, C633..
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Activities Modern exhibition, advertising, promotion and propaganda extensive use of sound, light, electricity technology, a number of electrical diagrams, control model, commo..
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Adjusting the phase potentiometer RP, can change each corresponding thyristor vl-V. Conduction angle, thereby changing the applied voltage across the load size. ..
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Adjustment potentiometer RP, can change the thyristor Vl, vz conduction angle, thereby changing the applied voltage across the load Rfz size. ..
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Agriculture and electrical power harrow plow power cord must be used four rubber cable, wherein a core wire as a ground wire, traction machine housing must be grounded. Two tra..
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Another JYB type liquid level controller 119 internal circuit shown in FIG. This circuit uses the Schmitt trigger circuit (VTZ, VT3 composition), so that the action level contr..
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Another example of Figure closed loop speed control. It is a single voltage supply and L298 with integrated H-bridge power amplifier (24V). Like the previous example, it is als..
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Another method is to elicit a motor counter electromotive force from the motor end of the associated signal after amplification averaged as 3 pins. By the drive output of A as ..
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Another solution would be to improve the current feedback signal to an error amplifier summing junction incorporated into, a current feedback loop to increase. Figure this scen..
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Application Example A photovoltaic control circuit, the figure of Triac is called solid state relays, load it provides AC power supply path. To achieve high current control sig..
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Application circuit works the device as shown below. For cooling electrical equipment, usually with a cooling fan to drive heat. LCE made use synchronous control socket on the ..
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Application circuit works the device as shown below. Generally shared TV antenna amplifier and power switch user is isolated. Sometimes no one can work the TV, the antenna ampl..
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Artificial hatching or breeding tropical fish, while watching the fish pond need to configure add oxygen pump and circulating pump. Plus oxygen pump and circulating pump long-t..
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As a result of the power switch integrated circuit A, it has a simple circuit, the sensitivity is high, working and reliable. It belongs to the people filling liquid level auto..
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As applied to a concrete circuit relay. Transistor VT is high-speed, high- voltage switch is. Switch voltage requirement is 5-10 times the rated voltage solenoid valve. Fast re..
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As shown below for the non-contact lantern control circuit. The controller includes integrated music CIC2851, drive BG1 and BG2, thyristor SCR and other components. When the sw..
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As shown by INA326/327 constitute a single power PID (proportional - integral - derivative) as shown in the temperature control loop. The circuit is mainly to complete work on ..
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As shown for the voltage-controlled gain amplifier. Use FET gate voltage and the drain - source resistance between RSD to approximate logarithmic relationship may constitute a ..
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As shown in FIG controllable integrating circuit. The circuit has reset to zero, and to keep different integration time constant controllable integrator. The analog switch is C..
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As shown in the one-button control switch with one button control two relays, two respectively turned negative as needed Load power switch. Circuit mainly by a hex inverter CD4..
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As shown in the timing control circuit is a sequential circuit, the circuit can be carried out sequentially timed control of the two switches, control time can be adjusted from..
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As shown thyristors - linking arm rectifier module three-phase half-controlled bridge rectifier circuit. Thyristor - rectifier module linking arm is made of a thyristor and a r..
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As shown, mainly by the NAND gate IC1 (CD4096), counting/timing distribution circuit IC2 (CD4017), the analog electronic switch IC3 (CD4066) and the D flip-flop IC4 (CD40174) a..
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At dawn, the light is irradiated onto the photosensitive resistor RL, it reduces resistance This switch ICs (2) exhibits high electrical foot. I. lC end, the relay K does not s..
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Attached to the wall is a high-rise building construction elevator indispensable vertical transportation machinery. Its drive motor usually wound wire induction motor. Using th..
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Based on the classic Baxendall tone control circuit, this provides a maximum cut and boost of around 10dB at 10K and 50Hz. As the controls are passive, the last transistor prov..
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Because of the high rhythm of peoples lives. Tense, intense competition, many people suffering from insomnia, pose a threat to health and work, for this section presents a feas..
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Bidirectional thyristor control, control the very trigger voltage output from the step-down transformer T 12V (when the water is turned on electrodes). It belongs to the withdr..
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Boiler control circuit for controlling the temperature of water in the hot water heating system, often used comparator s comparison function to control the heating equipment. I..
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Breaker manually operated mechanism widely used type CS2. AC power operation manual operation control signal circuit shown in Figure 6-68. Figure, wc for the control of small b..
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Bridge crane control PLC ladder design Detection retract mechanism ladder hide programming manual and automatic operation of two run automatically follows Runtime: 1) When the ..
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By R. RP, DW, f TV over the composition of the discharge control circuit: B, consisting of n Island and over-discharge circuit prompted the stage Ji pod K. Gracilaria battery v..
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By two NAND gates Di, Dz and resistor Rz, capacitors Cl etc. RC self-excited multivibrator oscillation frequency 2. 5Hz, the oscillation amplitude is 4V. Using as probe tempera..
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CA3062 combined photodetectors and power amplifier in response to the optical signal generated by the on/off output. Integrated circuit transistor output saturation should be o..
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Capacitor filter is adopted frequency control circuit commonly used anti-jamming measures. (1) frequency interference clamor of wiring in the cable core wire 4-20mA control plu..
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Cats are predators of rats, the use of electronic devices to simulate mew Repeller is an effective method. Because it is an electronic device, mew big or small, can be fast or ..
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Circle i {JA, C two-phase grid connection line. a. c technology turbine shed two lines. A, a voltage between Ri by Buck, convex - Diu chain flow. R., R3. wl dividing aftercrop ..
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Circuit from the main circuit, trigger circuit, speed negative feedback, negative feedback differential voltage, current cut-off circuit, loss of field protection and other com..
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Circuit is shown. (1) DC power circuit power switch S3, 220v AC voltage by T Buck, UR rectifier, C3 and C4 filter, generating + 9V voltage, supply Kl drive control circuit, a b..
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Circuit shown in FIG. Circuit by the battery, the controller, with electrical and charging parts. Wherein: Zener diode DWl, resistors R1, R2 composition undervoltage detection ..
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Circuit shown in Figure 11-14. It uses a one-way thyristor, is poured into the liquid level automatic control circuits. Electrodes for detecting sensing element for water or ot..
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Circuit shown in Figure 3-148. The circuit eliminates the need for step-down transformer, using thyristor for brake control, for small capacity asynchronous motor braking amoun..
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Circuit shown in Figure 3-168, which uses the controller SA grading speed and reversing control; reverse brake connected to the rotor circuit overcurrent relay KI to control; c..
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Circuit shown in Figure 3-22. Figure, KMi and SBi are forward contacts and forward buttons, KMz and SB2 are reverse contactors and reverse button, SB3 for the stop button. ..
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Circuit shown in Figure 3-76. It uses two time relay to achieve control. KTi and KTz control the motor running and downtime. ..
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Circuit shown in Figure 3-78. The time line also use two relays to achieve automatic control, but the line structure than simple. The line can be achieved intermittently motor ..
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Circuit shown in Figure 3-79. It consists of two delay circuits, respectively. RPi adjustment potentiometer and RP2, respectively, can be changed and stop the motor running the..
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Circuit shown in Figure 3-80. Which controls part of the transistor multivibrator. Multivibrator is a strong positive and negative feed-forward amplifier, its two branches are ..
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Circuit shown in Figure 3-81. The circuit uses a transistor delay circuit to achieve start-stop cycle control. You can take the hand moving and automatic manner. Circuit is pri..
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Circuit shown in Figure 3-82. It uses 555 IC A motor to achieve automatic control of start and stop cycles. Adjust potentiometer RPi and RPz, respectively, to change the motor ..
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Circuit shown in Figure 3-83. The figure shows that only when the contactor KMi after pull (ie, after the motor Mi first start), KM2 to pull (ie Mz after start) ..
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Circuit shown in Figure 3-84. Be seen by the two electric motors can be started separately. But only when you press Host (Ml) of the stop button SBz (after contact KMi release)..
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Circuit work process is: When the momentary switch S between, since the voltage across the capacitor can not change suddenly, the Pi C zero voltage across the SCR vs no trigger..
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Closing switch S, the power supply positive half cycle, the power by VD1, Rl, VD2 to charge the capacitor C, C at both ends of the electrical pressure gradually increased, but ..
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Circuit principle: OV9650 processor interfaces include three parts SCCB interface, data output interface and control interface. SCCB interface to play the role of transfer prov..
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Circuit at rest (dark) state operation the electromagnet M current flows, once there is sufficient strength so that light shines on the phototransistor is turned on, that is th..
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As shown using MIC5156- is a composition having a current limiting function, and a lot of high output current is turned off may be low with or without regulator switching regulator circuit. S terminal vacant, and the gate - plus a l6 V Zener..
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MC1411 series of Darlington Drive current internal structure Darlington current driver has a small, consistent, and high reliability parameters, especially for high-voltage,..
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As shown in Figure is a limiting protection charger. VT transistors and resistors R3 form limiting network. Seen from the figure, the resistor R3 is the base of transistor VT e..
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741 op amp can be used as a voltage comparator. Non-inverting input and a zener control source. The reference voltage is 5.1V. R2 can adjust the in-phase input voltage becomes ..
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ACER PM02 MP4 machine shows voltage status indicator circuit, when there is power red LED lights when entering the work, the green LED lights. ..
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Chen is in the OP put too amplifying circuit, so that the comb over current feedback loop with input resistance determined current roll, so FET drain current, a gate by the det..
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Structure and working principle of this circuit is basically the same as the previous circuit, but with some of the components used in the functional minor Ran o First show different bands of the circuit is divided into seven bands, the center frequency of....
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Newman MP4 machine has three atj memory, a data memory is used to store data U7 # - one is used to store the MP4 machine work program program memory U} 8 = The last parameter is used to store user settings user memory U9. Data memory circuit arrangement in....
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Semiconductor color sensor having an identification of the object color capacity by three photodiodes PD1, PD2, PD3 and three color filters X-PHOTO, Y-PHOTO and Z-PHOTO constitution. Respectively mounted on each of the photo diode red (R), green (G), blue ..
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A reflex isolators (A) the light reflected by an object detecting its presence. When an object is very close to the sensor (B), this technique can be used to detect circuit. ..
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A, RS485 bus Introduction RS485 bus is a common serial bus standard, using balanced differential transmit and receive mode, and therefore has the ability to suppress common mod..
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As shown by the bistable circuit and optocoupler transistor of FIG. In the initial state the moment the supply voltage is turned on, the transistor VT off, the circuit outputs ..
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As shown is a very attractive Christmas lights circuit. When the power is turned on, lights HL will gradually become brighter; when it reaches the brightest, it will automatica..
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By the photocell photoelectric tracking circuit configuration, with two similar performance as a photoelectric cell the same light receiving device. When the incident light flu..
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Circuit is shown. Group 4 analog electronic circuit switch (S1 ~ S4): S1, S2, S3 for parallel delay circuit, when the power is turned on by their R4, VB6 drive Triac VT, VT dir..
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A CMOS NAND gate or NOR gate can form a single-shot, this single-shot circuit extensively used to delay the pulse signal, stretching and shaping. Monostable door circuit, its m..
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A video amplifier output at its arrival was a differentiation before the Schottky comparator. Typical propagation delay is reduced to 10ns. The output pulse width is set by the..
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As shown by 555 and the timing resistor R1 ~ R3 and measured capacitance Cx can be composed pointer capacitance meter, one-shot circuit capacitance measurement principle is the..