New Circuits Page 265
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Chizuru 100Hz channel frequency pulse charging electric bike battery circuit Shown as Chizuru 1.00 I-Lz letter frequency pulse electric bicycle battery charging circuit. Freque..
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Circuit principle : circuit after transformer, bridge rectifier and conditioning on the battery charge, the charge current transformer can be adjusted simply give about 12v 100..
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Circuit principle: circuit after transformer, bridge rectifier and conditioning on the battery charge, the charge current transformer can be adjusted simply give about 12v 100A..
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Computer when you run large-scale software or games machine in the heat will increase the temperature inside the machine so that, especially in the hot summer when more obvious...
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8 parallel input/serial output interface circuit as follows: ..
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American Atmel AT89C52 is produced by low-voltage, high-performance CMOS 8-bit microcontroller chip contains 8KB of rewritable program memory and 256B of random access data mem..
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As shown in FIG, D187 is a universal asynchronous receiver transmitter (UART), its RX/TX signal received optocoupler N21, the N22 and N29, so put the RS-485 communication inter..
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Intelligent humidity meter circuit by the HM1500 / 1520 humidity sensor and MCU configuration shown in Fig. The meter + 5V power supply, with four common cathode LED digital tube. CCP..
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8 shows a possible digital counter circuit. This circuit uses two ICM7217 integrated chips each control four digital tube. ..
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As shown, a CD4016 analog instrument is used here as a multiple multiplexed digital output, these output transfer function back to the input. Since the CD4016 is a digitally co..
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As shown, this simple circuit using a LM311 in the level detector, and with a CMOS analog switches to release capacitance. A major feature of this counter is the number can be ..
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Asynchronous counter shown, this circuit no clock synchronization signal can be used in a random counter or independent unit circuit. ..
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CC4017 count/distributor consisting of a circuit diagram of the delay: ..
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Circuit order is triggered by the positive edge. The anode of the triac switches are turned on, the cathode of the switches are closed. Male - female IN4009 positive transient ..
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A simple phone automatically shows the recording circuit. In this circuit, after the call Ming sound start switch K is turned on by the sound of automatic message HFC5209D. ..
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Chaolitong Phone Travel Charger for Motorola to 308,328,338 and 368 series mobile phone battery. The charger has a nickel-cadmium, nickel hydrogen, lithium-ion battery switch, ..
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As shown for the 20Hz signal generator, may be applied to the telephone ringing system, the signal source can also be used for alarm systems and other electronic Used. The circuit is actually a transformer T and a transistor VTl, VT2 composition..
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The call is made using language chip ISD1016 voice instead of using the phone ringing message controller schematic circuit. The controller can store messages, music, song, or other sounds, as an alternative to monotonous ringing...
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As shown in FIG later, RTD temperature collected in the field, which was converted into a voltage by the XTR105 voltage is converted into 4 ~ 20mA current output, and then the ..
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As shown in FIG, RTD using Pt100 type thermocouple. When the temperature is 100 ~ 600oC when, XTR105 output current 4 ~ 20mA, RCV420 output voltage of 0 ~ 5V. The figure for th..
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As shown, collected at the scene RTD temperature, it is converted into a voltage by the XTR112/114 voltage is converted into 4 ~ 20mA current output, and then the twisted pair ..
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Check loop circuit for automatic telephone answering or tone generator for use reverse automatic repair. ..
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The microprocessor uses a linear regulator power circuit constructed as shown below, use two MAX666 simply. CPU and A / D converter power supply using A2, RAM and real-time clock power supply with A1. MAX666 output voltage Vo by the VSET (6 feet)..
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High-precision voltage regulator, isolation transformer with the correct wiring and low-pass filter, to further improve the electrical noise immunity source portion. The wiring in Figure 20-48 and 20-49 as shown in FIG. Figure, chokes (Li, Lz) choose an inner..
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As shown in the following figure is double coil metal detector circuit. The probe by the probe, a transmitter, a receiver, a timer and sound transmitters and other components. ..
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A control two (namely a frequency control two motors) Frequency constant pressure water supply control circuit shown in Figure 5-23. Figure, 1,2 fault output terminal; 6,7 anal..
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After 3t40V power Sutra T seats is reduced to 6.3V low voltage by VDi - V sulfone full transition rectified. c1 filter provide after - when caution circuit NI/555 operating vol..
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Are the flowers in pots need watering if the soil surface moist observation alone is sometimes unreliable. For this reason, the production of dry flower instructions which, whe..
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As shown in FIG lantern control circuit 30 outputs can be controlled by an external driver circuit 30 lights for water sports, as large decorative lantern controller circuit as..
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Automatic water tank as shown in the circuit diagram. IC is PSSR AC solid state relay, which is developed in the SSR on the basis of a new type of solid-state relays AC non-con..
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Autotransformer voltage starting, starting time 30-60s adjustable. Figure, SDJ electrode liquid level sensor HJ-13-type, pump control system box with HKD-21B type, 1MK level mo..
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Boil water on the kitchen gas stove, once the water is boiling, if not stalled, spilling boiling water will come out, the flame extinguished. Gas spills, very safe. Water can s..
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By the oscillator circuit, a counter, Iseki circuit of three parts. Oscillation circuit by the time base manifold NE555 and several external RC element. Its function is to prov..
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Circuit, if the thermistor K273 temperature reaches the setting level or not two sensor electrodes immersed in liquid, so that it is heated by turning on the relay. This ensure..
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As shown in the circuit, there is the incident at the time, this circuit is connected with photoresistor LDR transistor is turned high or zero level. Amplification factor of tr..
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By the photosensitive resistor of this circuit is a circuit diagram of the automatic lighting for hospitals, dormitories corridor and public places. It automatically lights off..
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By the photosensitive resistor television automatic brightness adjustment circuit shown in Figure photoresistor and contrast potentiometer connected to the intermediate head. U..
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When the RTD temperature sensor further away from the amplifier, sensor lead resistance and the lead is vulnerable to interference and other issues will not be ignored. Circuit shown in Figure can solve this problem. The circuit uses a voltage-current ..
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By the voltage output type and angle UZZ9000 KMZ41 constitute detection circuit as shown, it is a + 5V power supply, RP1 ~ RP2 offset voltage adjustment potentiometer, RP3 ~ RP..
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ADC0809 is an 8-channel analog switch with an 8-bit successive approximation A/D converter. ADC0809 8-channel analog switches can be realized now 8 to 1, an address latch and d..
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Another example given in AD574 and PC bus. The figure for the AD574 converter Ul, U2 is 74LS245 bidirectional data buffer, U3 of 74 Lsoo two-input AND gate, U4 to 74LS125 tri-s..
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Circuit is shown. It consists of a temperature sensor, temperature control of electronic switches and circuits composed vocal language. In the hot summer season, PCs central pr..
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1 Bute CD12V Lee output end of the eight-connected MOSFET power transistor BU * {1RF744) im JUV bone made this power MOSFET is turned on and should go off repeatedly called to ask L packet..
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Anti-theft car audio system circuit is shown, which is taken from the car battery 12V DC power supply. When after closing the switch S1. Optocoupler IC1 light emitting diode is..
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Using only a NE: automatic light sensor circuit composed of 55 groups, so that people can rice lights, people take the lights off. } N supply route VD1, vS, C. , (1 and R. composition, power and (1, both ends of the Sichuan Hl 12V input DC ..
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NE555 time base circuit with AC solid state relay SSR may constitute automatic light switch circuit, the circuit shown in FIG. From the figure can be seen during the day due to incandescent EL photosensitive resistor circuit automatically fall off when the..
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In the laser tube drive circuit are often provided with a photodiode, which generates a laser beam is proportional to the intensity (optical power) of the current, but in response to this type of photocell mostly relatively slow, generally can not track....
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Circuit T as principle: In this circuit, a laser diode LED, as a light hair emitter, in addition to other properties may also be used similar light emitter laser diode substitu..
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Merry Company (Micrellnc) introduced the industry's smallest and most powerful of the most used in portable electronic devices each LED driver MIC2298...
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Using MAX1576Y charge pump white LED driver circuit as shown, the circuit is capable of driving up to 480mA total current two groups (n = 4 white LED) white LED...
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White LED can be used in series or parallel connection, both solutions have advantages and disadvantages. The disadvantage is that parallel the LED current and brightness do not automatically match...
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LT3755 in the LED string high side sensing output current, high-side current sensing is used to drive the LED's most flexible program, PWM input provides up to 3000: 1 dimming ratio,..
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Due to the lack of speed in the entire series TTL monostable multivibrator, and because of the requirements of ECL voltage swing wide range of small and power, which drives us to use F series circuit having a fast transition..
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Powerint's DER322 reference design uses LinkSwitch-PL family LNK460VG devices, the industry's first alternative 100W A19 incandescent LED driver using a single-layer PCB, a low-cost low component count and small size characteristics, efficiency of....
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LTC3202 is Linear TECHNOLOGY company does not need a charge pump gated oscillator Pictured LTC3202 charge pump using a lithium-ion battery-powered white LED driver circuit...
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LB140 is shown in Figure Five-digit LED level indicator typical driver IC circuit, BL1405 widely used tape recorders and tape recorders do with level indication...
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Have you ever in the dark watching time from the mobile phone In this case the bright and dark backlit strong contrast will make the eyes uncomfortable, which requires the use of "ICON" model "that is in standby mode with a slight current time,..
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CP2128 is a low noise, fixed frequency step-up garden DC / DC converter, in the case where the input voltage range of 2.7 ~ 4.5V, the device can generate an output voltage of 5V to eat, the maximum output current up to 100MA. C CP2128 few external ..
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A passive light emitting diode output level indication circuit ..
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A simple level power meter to provide high-fidelity sound system bar or dot matrix display. Green LED display 0-7; 8 show yellow, red 9, the LED displays peak power. This circu..
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According to kind of draw the circuit diagram shown in Figure 5, 220V AC power after the capacitor buck diode rectifier to lead-acid battery charging, the red LED for charging ..
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Also known as the Free lamp (ie, online sellers, commonly known as Myanmar lamp), because it takes into ordinary household fixed telephone line voltage power to do, no batterie..
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As shown in the automotive LED driver circuit diagram LT3486 constituted. LED used in the cars central brake light (CHMSL) when there is an advantage: faster reach the set brig..
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As shown in the circuit diagram for the LED signal amplification: ..
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As shown in the refrigerator for the LED lighting circuit schematic. The circuit is composed of eight LED lights white LED high-brightness light-emitting tube. LED are mounted ..
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As shown is BA6104 Five-digit LED level meter driver IC basic application circuit if the level is higher than required to display 1V, only 7 feet in the power supply Vcc indire..
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As shown, still work in the case of unknown polarity of the voltage or the power supply polarity is reversed. And DC Drives as AC drives, the current limiting resistor R whose ..
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BA6104 Five-digit LED level meter driver IC basic application circuit BA6104 Since the input stage that uses a PNP transistor base composite input, so the input impedance is hi..
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CAT3606 is a high efficiency white LED drivers, this adjustable charge pump is suitable for general-purpose, large-panel, flicker-free white LED backlight and dual-display syst..
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Circuits, C1, R1, varistors, L1, R2 filter circuit composed of a primary power supply, can filter out transient overvoltage input, C2, R2 down circuit composed, C3, C4, L2, and..
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As shown, the switching circuit comprises a buck rectifier circuit, the bistable trigger circuit and the thyristor control circuit. Implement remote control for electrical equipment turned on or off...
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Voice circuits described in this section, during the day or in brighter, voice-activated switch is turned off, the lamp does not light. At night or in low light, sound control switch is pre-working state...
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The receiver provides two TV signal, a TV in the living room, another TV in the bedroom, along with a satellite receiver. Watching television in the bedroom for Taiwan convenient, but when watching television in the living room,..
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Specific remote control transmitter circuit composition shown in a diagram. Transmitter mainly by the large scale integrated circuit chip Dl (THBT- T01), 4s5kHz crystal oscillator, 32kHz crystal oscillator, a liquid crystal display (LCD), room temperature....
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As shown in FIG AC is a dual radio remote control switch circuit. Transmitter: Q3 generates a high frequency carrier signal. Q1, Q2 composition oscillator circuit. When you pre..
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As shown in FIG homemade wireless remote control circuit diagram; A motor remote road works Wireless remote control transmitter circuit As shown for the remote control transmit..
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As shown in FIG travel remote control model is a circuit diagram, NE556 is a dual time base IC 555 includes two separate circuits, each consisting of a Schmitt trigger circuit ..
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As shown in the radio remote lighting switch with RCM1 type radio-controlled remote control transmitter and receiver components as a circuit. Circuit from RCM1A/B component for..
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Asia ultrasonic remote control switch This example describes using gas pressure bisulfite ultrasound flute (made of rubber, there are olive and flat round) control. When using ..
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Book mediated clam meaning of ML. 4423 © with integrated controller ii Liu t-phase and single-phase/two-phase AC induction motor built Organisation pretty machine control facil..
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It consists of several gates as a crystal oscillator circuit c Several gates as shown by a crystal oscillator circuit. FIG. (A) to l MHz crystal oscillator circuit, the figure (b) is 20 MHz crystal..
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Temperature stable resistors R1 and R2 NAND gates, they ensure that the switches in the linear region open. Capacitor C1 is a DC component at the operating frequencies, ..
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Circuit diagram in the research and design features, are applied on the mobile robot. Therefore the study design systems to take into account small size, low power, easy to mov..
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Actual typical crystal oscillator circuit as shown in FIG. The three-point oscillator circuit to meet the original composition is for capacitance feedback oscillator. When the ..
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And a transistor in series with C1 can be used to adjust the oscillator output frequency. Frequency may be in the range of 20pF to 0.01 F change, or as the tuning capacitor, th..
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As shown in FIG receiver may help patients avoid missing voice in the daytime, only the receiver itself is working, lights will automatically cut off part. At night the lightin..
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Circuit as shown, mainly by the integrated voice chip ISD2560 composition. Winbond ISD2560 is produced by a chip with a strong voice recording function, it is a permanent memor..
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As shown for the stable sine wave oscillator circuit. In order to obtain stable oscillation, the loop gain of claim 1. If the gain is too large, the waveform distortion; if the..
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As shown for the wideband sinusoidal voltage controlled oscillator circuit. The circuit oscillation frequency is determined by integrating resistor R and a capacitor C, voltage..
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Circuit diagram used CA3140 op amp and diode array, produces a low distortion sine wave. Table shows the values of R and C, access to frequencies from 50Hz to 30kHz. Zener diod..
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How it works: the circuit as shown in FIG. VT1, VT2 and resistor R1 constitute a constant current source for charging the capacitor C2 for linear; VT3, VT4 and resistor R2 constitute a constant current source for ..
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Common non-sinusoidal oscillator circuit, waveform and frequency formula - square wave oscillator - self-excited multivibrator ..
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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...
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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"..
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As shown in Figure is a large high-brightness LED driver circuit for a sufficient drive current, integrated circuits using a 7447A or 74247. Digital display tube has eight ligh..
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As shown, in FIG a decimal seven storage - Decoding - drive unit 74 143, this unit has a constant output for all segments. Each at a voltage of 5V when the current is about 15 ..
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AM diode ring circuit consists of four diodes to form a ring road, so called diode ring modulator circuit. AM diode ring circuits greater advantages. Due to the characteristics of the diode and discrete circuits, etc., often have to use resistive element....
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AM MC1496 analog multiplier integrated circuit configuration shown in Figure 21-39. Channel two-input, ? pin DC bits are 6V, can be used as a carrier channel two input channels..
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AM radio shows monolithic circuit. The broadcast signal received by the antenna foot iciCD fed by a high efficiency mixer, the output from IF, IF transformer after filtering, a..
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AM radio shows of the IF amplifier and detector circuit. Mixer from the mixer IF output signal level of the intermediate frequency transformer after the device Ti, is applied t..