New Circuits Page 262
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Automatic electric furnace temperature controller shown in FIG. 1-25. The closed circuit is formed from a temperature detection output control loop; the temperature rises, the ..
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Automatic electronic refrigerator deodorant sterilization circuit ..
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Automatic emergency lamp circuit It shows the electronic switch integrated circuit of automatic emergency lamp circuit. Made into the circuit with automatic emergency lights in..
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Automatic irrigation control circuit can automatically crop irrigation according to the size of soil moisture. It can be widely used in state farms, orchards, Schomburg materia..
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Automatic reclosing PLC control program designed according to the Control of automatic reclosing device and the PLC I/o definition, design ladder -shaped diagram as follows: 1)..
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Automatic sprinkler control circuit It shows automatic sprinkler control circuit. The circuit mainly by the humidity sensor, a detection signal amplifying circuit (transistor V..
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Automatic toilet flusher is restructuring in the sitting so that the basis of the ordinary, the automatic flush after use once, simple and reliable. When not in power source co..
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Automatic volume change with the ambient noise control circuit In the set of all car stereos and the like, the high speed and low speed driving or stop driving state, ambient n..
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Bathroom automatic hand dryer circuit. Figure, LED to LED tube takes; VT is a photosensitive transistor, LED and VT composition infrared opto tuner, as a signal sensing clamor,..
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Below is automatically converted to low-voltage circuit. 220V electricity through step-down transformer T after, VDw breakdown camel guide so VT1, VT2 off, solid state relays S..
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Box circuit) bistable circuit, each bistable circuit is a single bond by the control output high and low level. When the circuit instant access electricity, electricity through..
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By AC 220V step-down transformer Lu. Former -q diode bridge rectifier, filter capacitor C becomes a straight stream. The DC voltage varies with fluctuations in the grid. R.. Ri..
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Circuit in order to stabilize the lamp brightness L, using thyristor AC automatic voltage regulator circuit. For this reason access thyristor T5 on a diagonal line from the exc..
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Circuit is shown. It can not only manually, but automatic control. ..
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Circuit is shown. It includes the TC620 temperature control circuit, the temperature indicator circuit, thyristor controlled heating circuit, vocal music buck rectifier circuit..
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Circuit shown in Figure 3-164. The circuit can be manual and automatic two ways. During startup, KA normally closed contact relay FR hot heating element shorted, in order to av..
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Circuit shown in Figure 3-187. When you start, then people start auto ZQB step-down transformer. After a period of delay, ZQB out of operation, the motor increases the speed at..
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Circuit shown in Figure 3-27. Jog feature is available for fine adjustment of moving parts. Figure, SB3 and SB4 are forward jog and reverse jog button button. When you press th..
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Circuit shown in Figure 3-47. Close the power switch os, operating handle to push the start position, then three-phase AC motor is connected through a step-down autotransformer..
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Circuit shown in Figure 3-56. It has both manual and automatic start-up mode. Has KA2, KA3 two relays in the control loop. So cut KM! Before and after turning KMz, after provid..
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Circuit shown in Figure 3-85. Manual and automatic control through the transfer switch SA. After starting the motor Mi, to start. Automatic start sequence by time relay KT to a..
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Circuit shown in Figure 7-32. The excitation device is suitable for terminal voltage of 400V, a capacity of less than 75kW synchronous generator motor for automatic adjustment ..
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Circuit shown in Figure, T is auto voltage regulator. Its output fixed input end by a servo motor to automatically adjust the output remains constant. Transistor VTl, VT2: 3DK9..
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Circuit works The automatic anti-frost crop controller circuit consists of electric contact mercury thermometer Q, the control circuit and ignition devices and other components..
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Circuit works The liquid level automatic controller circuit from the power circuit, a level detection circuit and control the implementation of circuit, as shown in FIG. Power ..
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Circuit works The liquid level automatic controller circuit from the power circuit, control instruction level detection circuit, the starter control circuit, as shown in FIG. F..
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Close the power switch os, press the start button SB2. KM1 contactor is energized combined self-locking, the main contacts are closed, the autotransformer TM connected between ..
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The output voltage can be calculated as follows: U. . = 1. 3 (1 + R3 / R4) (V) adjustment potentiometer..
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The so-called soft start, refers to a circuit power, the output voltage through a startup process to a slower rate of increase to a given value, in order to protect not want to have surges of the load circuit. It can output voltage 24V, current 2A...
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5V regulator circuit Is 5v regulator circuit, the circuit consists of a 5v voltage 10-20V DC power, low-power self-consumption and high efficiency. ..
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5V to 2.5V voltage regulator circuit It shows 5v to 2.5V regulator circuit computer motherboard. Seen from the ring, this circuit is a power management chip RT9202 as the core ..
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6 to 15V, 500mA power supply circuit with adjustable amplification segment and the use of composite pipe transistor power supply circuit are still many, ..
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7900 series three-terminal fixed negative output voltage regulator circuit ..
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A typical computer motherboard CPU power supply circuit A typical computer motherboard CPU power supply circuit, which is mainly composed of the main power supply management ch..
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A. The maximum input voltage of 10V. OP amplifier A, to give ten of 10V reference voltage, and its stability is mainly determined by the Zener diode characteristics, mining com..
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AC power supply circuit as shown in FIG. It mainly consists of power supply, the reference voltage, the comparator voltage sampling circuit, and several other units. Mains tran..
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AX610 Series maximum output current IOM lOOmA, increase access regulator scalable output current, as shown in FIG. Figure (a) two reverse polarity series regulator (2CW106, U: ..
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Adjustable DC power supply circuit Shows an adjustable DC power supply circuit, which is composed of step-down transformer T, rectifier bridge pile (VD1 ~ VD4) and other parts ..
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Adjustable dual voltage power supply lines shown, can be used as a power supply line frequently used experiments. Its current does not exceed 1A, but two voltages are adjustabl..
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Adjustment potentiometer RP, can change the over-voltage limit setting. If the DC power supply polarity is reversed, and there may be burned equipment components, for which pow..
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Application of the above advantages make it move down 1R 2130 can be easily used for DC cut crossing speed, DC servo system, three-phase power inverter, switching power supply ..
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As can be seen, a power supply is usually the transformer, rectifier filter, adjust the yuan pieces, more zoom, six partial reference power supply and sampling, etc., there are..
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As shown for the adjustable output voltage regulator type rectifier circuit times. If the output voltage from the circuit FB, to obtain the peak voltage of an odd multiple, if ..
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As shown for the basic connection circuit ISO120/121 signals and power supply. Each power supply terminal must have a 1 F tantalum capacitor as a bypass filter, printed circuit..
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As shown for the basic connection circuit ISO122/124 power and signals. ISO122/124 each supply terminal must have a 1 F tantalum capacitor as a bypass filter, printed circuit b..
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As shown in FIG 5G317 TV is integrated voltage regulator circuit wiring applications. In the application, the maximum input voltage 5G317 should be less than 25V, output voltag..
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As shown in FIG W7800 is positive Integrated voltage regulator and F007 consisting of an operational amplifier power supply tracking application circuit. Some use positive and ..
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As shown in FIG adaptive adjustable power supply. The power supply to the LM317 regulator device, adaptive switching circuit automatically switches the input voltage according ..
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As shown in FIG by DN-41 consisting of high-current switching regulator. DN-41 features overcurrent, overvoltage (crowbar) protection circuit, a reset circuit, soft start circu..
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As shown in FIG grounds ISO124 and MC78L05, an external regulator MC79L05 and DCP011515 constituted improve power supply rejection ratio (PSR) circuit. Input signal VIN (maximu..
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As shown in FIG grounds efficient, low-power output voltage boost DC-DC converter MAX761 and a few external components, the adjustable power conversion. Its output voltage is d..
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As shown in FIG grounds efficient, low-power step-up DC-DC converter MAX761 and a few external components, the + 5V + 12V boost power supply. Its characteristics are: the conve..
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As shown in FIG suitable for use in high-efficiency single pager battery power boost. It is composed of a MAX1678 and three external components. MAX1678 is designed for l to tw..
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As shown in FIG. 3 ~ 6V a practical adjustable power. The power supply to the integrated voltage regulator 5G14 core plus 3DG12A transistor current spreading, constitute an out..
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As shown in Figure as a + 24V, 1.9A power supply circuit. It 5G14D domestic integrated voltage regulator as the core, three external power transistor, output current from the p..
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As shown in Figure as a switching power supply to work with linear regulated power supply. Its characteristics are: high efficiency, low dropout; having the ability to filter o..
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As shown in Figure it is a temperature compensated with a negative voltage to follow the positive changes in the symmetrical voltage integrated power supply. This circuit is ch..
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As shown in the low-cost dual output voltage regulator circuit consists of two pieces Micrel companys MIC29150-12 and MIC29150-5.0 regulator constituted. ..
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As shown in the zero-power regulator circuit is simple, reliable and able to work. It is suitable for all kinds of electric power adjustment appliance, series wound motor power..
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As shown when the power supply is 0 to 1 hour, set the AC circuit diagram 555 constituted within one hour timer, J 212 IRC MR312C relay coil impedance, or current of less than ..
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As shown, the diode IN4148 series in V + and loop to prevent line damage due to reverse device in the loop loss only 0.7V (silicon diode forward voltage drop) of the power supp..
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Automatic AC voltage regulator circuit ..
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Automatic AC voltage regulator circuit TXD1742 continuous adjustment ..
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Boost 3.5V regulator circuit With this chip can boost or build stable voltage supply to V ~ 3.V DC voltage into a DC voltage of 3.5 V, ..
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Both circuits are applicable only to have overcurrent protection power supply. ..
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By the old I *, jh;, ililiiit; NE555 circuit implementation and other child member, NE555 1yj complex I end (6) feet. Set bit Vr: {2) feet Ding electrical equipment connected s..
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By the transistor VT and regulator vsl etc. constant current source, and the use of three regulator, the regulator circuit therefore of high pulp. ..
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By the transistor VTa, VT4, sense resistor Ro-current protection circuit and other components. The power supply after overcurrent or short-circuit fault is eliminated, can not ..
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By the voltage equation Ue Ut + Ur + Ua shows that the size of the transistor voltage Ut will determine the maximum output voltage Ua. At the same time there should be Ur 2V. U..
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CO2 gas shielded arc welding power supply electromagnetic vibration circuit C02 gas shielded arc welding electromagnetic vibration, vibration welding abbreviation commonly used..
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CS3843 and CS5101 constituted by the output of 5V/3.3V switching DC power supply circuit as shown in FIG. CS3843 is a fixed frequency PWM controller. The IC is characterized by..
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CS51227 constituted by the output of 28V/5A DC power supply circuit as shown in FIG. CS51227 is a voltage type PWM controller, its switching frequency up l.0MHz, starting volta..
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Capacitor step-down DC power supply circuit Shown is a capacitor step-down DC power supply circuit. This circuit eliminates the need for power transformers, capacitive voltage ..
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Cars are fixed as shown in the circuit composed of LM723 regulator circuit, it can replace the use of an automobile generator system consisting of electromechanical charging re..
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Circuit diagram for the DC power supply protection circuit. The device consists of buck rectifier power supply, monostable delay circuit, relay control circuit, audio feedback ..
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Circuit output current capacity and bulk capacitors Cl, and when the Cl o. 7vtF changed when 2pF, the output current can be increased at each end lOmA around 20mA, as determine..
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Circuit output voltage can be continuously adjusted from zero to maximum. Its baseline is a constant current from the auxiliary power supply circuit. 500 Europe reference curre..
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Circuit principle: This circuit uses three-terminal adjustable integrated voltage regulator, S gear set, the power supply voltage via a step-down transformer 17. 5VX2 alternati..
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Circuit shown in Figure 3-171. The figure, the auxiliary power supply is single-phase AC power, the single-phase half-wave controlled bridge (diode VD7, VD8 and thyristor vl, V..
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Circuit shown in Figure output voltage + 5V, output current of 1.5A power supply. It consists of power transformer B, a bridge rectifier circuit D1 ~ D4, filter capacitor C1, C..
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Circuit shown in Figure secondary N3 center tap and transformer T common point diode VD2, VD3 positive and capacitance C2, C6, C7 and negative electrode capacitance C9, C10 and..
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Compilation dial phone numbers with 15 commonly used libraries (plus number dialed) are stored in a standard CMOS RAM, one button keypad makes typing a phone number can be dial..
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Circuit works as follows: Computer logo conditioned clamor control circuit shown in Figure 1-58, the main chip AT89C52 microcontroller with Levin. Switched power source when, 2..
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AD7714 Typical application circuit is shown in Fig. UDD, UDDA end of the AD7714 can be connected to + 3V or + 5V power supply...
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As shown for the detector circuit multiplication. The circuit is a single-sideband amplitude modulation signal detector, its principle is to demodulate the received single sideband (SSB) and the receiver to recover the signal transmission..
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Headphone type detection circuit according to the figure attached. Figure, 2.2k RMIC-BIAS resistor connected to the audio controller provides a low noise reference voltage (VMIC-REF). When the audio jack is inserted, VMIC-REF voltage through RMIC-BIAS..
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After TT2 off, the input signal input via chi Az, dry white [input resistance is very high, becomes the same potential, the inverting input terminal must also be associated wit..
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Analog switches alternately pass, off the input signal by the low pass filter to make pulsating flow smoothing (removing pulsating become DC). OP Xiao Ai is an enlarged buffer ..
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As shown for the bandwidth of 10MHz broadband linear detection circuit. The circuit is the bandwidth Millivoltmeter measuring instruments, such as used above 10MHz of broadband..
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As shown for the simple adjustment of the high input impedance double wave linear detector circuit. The operational amplifier circuit by the negative feedback loop to compensat..
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As shown in FIG grounds ISO122P/124 and loop current transmitting circuit XTR101, isolated RTDs loop current configuration of the receiving circuit RCV420 4 ~ 20mA loop detecti..
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As shown in FIG photoelectron pulse missing detection circuit. The detector consists of optoelectronics slotted switch H13B1, dual time base circuit 556 with some RC components..
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As shown it is one for the 10GHz frequency amateur radio waveguide detector. ..
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By the three current transformers Current detection signal obtained after rectification, filtering the output of the three DC voltage, are applied to the transistor VTi, VT2 an..
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Cadmium sulfide photoresistor CD1 fingertip can be detected through the filter, CD1 form the sense amplifier feedback network, a part of the sense amplifier ICA produces weak s..
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Capacitive proximity controller usually consists of a radio frequency oscillation circuit and a detection plate. Figure 6-56 is produced with discrete components capacitive pro..
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Car drivers, motorcyclists despite prohibit drinking and driving, but also have occurred, in this case the circuit can be detected the odor of alcohol when. Issued a do not dri..
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A gas sensor (from Allegro electronics, Cornwall Bridge, CT06754 Ts GS823) in the presence of explosive gas turned on. U5 is a voltage to frequency converter, and a sensor whic..
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Air compressor (compressor) is commonly used in electrical equipment factory, generally controlled by the electrical contacts. Circuit shown in Figure 5-1. Circuit automatic an..
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Air compressor control circuit, the circuit principle analysis of pumping at play: When the overload protection function (1) When the motor thermal relay FR long-term overload,..