New Circuits Page 274

Channel 7 has a circuit diagram of a smart temperature sensor MAX6698 is shown in Figure: MAX6698 maximum temperature with three transistors (VT1 ~ VT3) and three thermistors (..

Circuit from the AD596/597 form a temperature measurement and control instrument is shown in Fig. Here, AD596/597 (IC1) as a closed-loop thermocouple signal conditioner use. IC..

Circuit of the easy to use cedar LM3sDZ temperature detection heir. Does not show adjusted to obtain 1 (hnV/aC output temperature change range if he is 0 ~ so * c, -. The outpu..

Circuit shown in Figure: MAX6698 maximum temperature with three transistors (VT1 ~ VT3) and three thermistors (RT1 ~ RT3). The internal reference voltage source via a resistor ..

Is a relay controlled by a closed turn the digital logic circuit Rd touch input switching circuit...

Oscillation: C310 positive terminal voltage of about 300V, the R311, R312 is applied to the switch BG311 B pole, while the B301 via the switching transformer (4), (6) was added BG311 of C pole winding, the switch begins to conduct,..

Switching power supply drive medium power applications in PM4040F bridge circuit as shown below: The PM4040F to drive a 200W to 800W switching power supply can refer to the following circuit, the other circuit section please PM4040F practical circuit...

T amplifier circuit schematic section shown in Figure 3-51 Japan Sanyo STK6303 Pina made high-power thick film integrated circuit, the power supply voltage maximum Dashi sov, output current up to about loA Division monolithic circuit powering Guests 36V,..

AC-DC power supply without power switching circuit normally used for lighting load circuit, once the power grid or power is restored, the standby power supply automatic switching immediately. Automatic switching circuit using a transistor as shown, the..

A typical DVD switching power supply circuit Is shown in digital products standby power supply circuit, which uses switching power supply structure, the oscillation switch IC T..

Adaptive zero voltage switching electronic ballast schematic diagram: IR2520 is mainly used for driving the fluorescent 40W or less. Rated lamp power different, Q1, Q2, L2 and ..

Applications are given to complete the four-piece HL402 switching power supply system diagram system drive four power IGBT switching power supply system. FIG IGBT drive pulse i..

As illustrated, 555 and R1, R2, C1 composition astable multivibrator, the oscillation frequency is about 10kHz, duty cycle close to 50%. VT2, VT3 switch as expanding the use of..

As shown Panasonic M12H switching power supply circuit, the use of Panasonic movement M12H TV: Panasonic TC-230H, TC-2030DHN, TC-830D, TC-840D and the like. Oscillation Approxi..

As shown by L296 chip high current switching power supply chip composed of 5 ~ 15V, 4A power supply in FIG. L296 monolithic high-current switching power supply chip features ar..

As shown in FIG Hitachi np8c switching power supply circuit, Hitachi NP8C power models are: Hitachi CTP236, CEP320D, CRP350D, 450D, Furi HFC-236,450, Venus C37-401, C46-1, C563..

As shown in FIG by DN-25 IC switching power supply. DN-25 is a monolithic switching power supply device, suitable for the production of medium output current, wide voltage rang..

As shown in FIG constitute grounds L4970A power switching power supply. L4970A is a high-power monolithic integrated switching regulator, the chip uses SIP-15 package, which is..

As shown in FIG constituted by L4960 + 5 ~ + 40V switching power supply circuit. AC 220V voltage through the step-down transformer, bridge rectifier and filter DC voltage Vi, i..

As shown in the design of the power supply circuit diagram. Using the oscillator circuit 74HC series CMOS logic circuit, the switching device is MOSFET. This means the number o..

As shown, the circuit adds an optical coupler (CNY75A) and adjustable precision shunt regulator (TL431). Current limiting resistor R3, R4 and R5 for the sampling resistor. When..

As shown, the zero volt switching circuit in the zero crossing of the AC voltage generated trigger pulse. In order to trigger the zero crossing of the 555 limit comparator conn..

BE-150 mainframe computer switching power supply circuit The host computer is shown in BE-150-type switching power supply circuit, the oscillation control IC to switch TIA94. A..

Changhong DVB-2000 digital satellite receiver switching power supply circuit Rainbow DVB -2000 top box digital satellite receiver switching power supply circuit mainly by the p..

Charging circuit from the DC power supply switching power supply control ..

Circuit shown in Figure, the circuit can achieve greater power output, just change the part of the device. FIG circuit R1 to the left, L1, D1, C1 to C7 are conventional common ..

Complementary voltage switching Class D amplifier circuit shown in Fig. Transistor VT1, VT2 are 3DA12. Among them, two of the same type (NPN) tube series product transistor VT ..

vl.U no mantle base current. Open cut II:, n is also turned off when the touch when the metal sheet. CI JF start charging. Lu Ci Bu l: charge to 2V Tsui l: time. V, Chong: im, generating ..

Sound with CD4011 digital circuits made light lamp dual-control delay section circuit shown in Figure 3-17, the left portion of the dashed line in Fig general..

In order to meet the needs of the control loop, often require electromagnetic relay or transistor relay to accelerate or delay action, from action to constitute accelerate or delay circuit...

Undervoltage release is long-term work, when the power supply voltage drop in the operating voltage range when the release is released, and directly led to the tripping axle rotation, cut off the breaker. ..

Constant current charging circuit long delay Shown as a long delay using CD4541 constitute constant current charging circuit, suitable for Ni-Cd batteries. When the power is turned on after, CD4541 @ pin output high TWH8778 electronic switch is turned on, the..

Using a wire connection, use NFA.55 timebase circuit delay type light touch switch, it can directly replace ordinary mechanical switch, without having to change the original interior wiring...

Lamp relay delay circuit shown in Figure 7], S131, SB2 are lights button mounted anti-machi not a different place, the lamp can operate F. LEDs LEDl, LFr) 2 should be installed in SB1 and SB2 at the "Peter asked in switch position indication easy to use...

Just use the call sheet to touch the electrical threshold M, namely E lamp lights when asked the same interval subparagraph, lights automatically turn off. VD], vs, (., C, to form a lH capacity drop voltage regulator rectifier circuit, (1 at both ends to ..

CDI011 integrated circuits using sound, light control stairs delay switch circuit is relatively simple, Pi can be good. Scarf, and non-f JI and NAND f JlI constitution "and" r J circuit, differential input dynamic. Only two input terminals that is....

Closing the switch S, AC positive half cycle through VDI, R vs SCR opened simultaneously at both ends of the capacitor C is full charge. In this case the positive half cycle alternating current through the lamp H vs power, negative half-cycle through the..

A 2-input NAND gate integrated circuit fabrication of digital delay lamp circuit, VD3, vs, after Composed of simple capacitive voltage rectifier buck crossing the half line, th..

A 555 four-base integrated circuit delay circuits They are a jump from high to low transition of the delay circuit. That button is pressed SB snow, the output is high, after so..

A delay by the improved quenching lamp pull switch, its performance and the example described delay lights care line switches, but the work of a high degree of stability and go..

A delay circuit using an operational amplifier It uses an operational amplifier A as a comparator, high timing accuracy. The timing of the timer is in the range of 1 ~ 30s. Del..

A delay using his electric lamp circuit. Normally, product thyristor VTH off iLi light E does not light, turn on the lights when needed, according to FSH, VT1, VTZ group into c..

A feast with enough delay lamp circuit is very suitable for use on the bedside table, which is characterized by a button SB, lights; then click the lights off; If the lights do..

A photosensitive daytime electricity 1B very small positive value. 555 (4) feet (j reset pin voltage small f IV group manifold ICz. Electrical output pin generous IC, a reset (..

A relatively simple circuit Lu Qing, stair walkway light control delay light switch, the disadvantage voice a little less sensitive, and sometimes difficult general conversatio..

A spider is a delay KD-9300 music IC, when you press the button switch SB, electric lamp E lights up, the delay about 20s, lamp E automatically turn off. VD, vs, C., (, And oth..

A strong anti-interference ability Lu light control delay switch circuit, it needs within a specific time in a row clapping I. lamp lit square Xi, after a delay, lights automat..

A thirty mining lamp control ASIC production delay lamp circuit is very simple. Pour in. H L2102 IC Wuxi love core Microelectronics Co., Ltd. (lmp, WV.7W. Wx.sjc.t n) Productio..

A two battery-powered light touch delay circuit, it can be placed on the bed pillow, nighttime convenience, to touch metal M under the capsule on a small lamp will automaticall..

A unique circuit design sound and light control delay stairs walkway lighting switch, it has a higher voice sensitivity. In the evening, when someone walking on the stairs r, f..

After the line on the power switch, the motor does not start immediately, but to delay a specified period of time, the machine can be used for automatic intermittent lubricatio..

Another is the use of money when NE55S delay lamp circuit group circuit, SB1, SH2 are J-light button, can be installed in two different places, the lamp can be operated E. Pres..

Another method uses Zhu gall thyristor delay lamp circuit. Usually, 220V AC via vr), vs, (,, c: isoelectric consisting of step-down voltage half-wave rectifier circuit, in f st..

Another setback law sound and light control delay walkway stairs light switch circuit. VDl - VI) 1, off + VT5 constitute Ji - Ji Guan road called Route VTl- VT4 control with ot..

Another simple connection delay lamp circuit. Turn on the lights, press F SH, power supply by SH, VD. The capacitor (rapid charging, thyristor VT opened, lamp E lights up. Loos..

As of control rechargeable delay circuit Under normal circumstances, when there is no input signal, the transistor VTi off. VTz conduction, the output U. Low potential. When U...

As one of the thyristor type delay circuit The so-called cut-off delay, that is, after a period of delay after the closure of the thyristor. The delay time of the circuit withi..

As shown having a multi-stage delay circuit is output. The operational amplifier circuit used as comparators, operational amplifier A1 when the applied voltage-inverting input ..

As shown in FIG touch delay switch is a CMOS NAND gate composition, can delay about 10 seconds, often used in street corridor, home door lights automatic control. ..

As shown in Fig division factor is optional delay circuit. Circuit consists of two 7-bit binary serial counter CC4024, controlled pulse source (gate 1, 2 composition) and the i..

As shown in the circuit with a set of sound and light control touch three functions into one to form a fully functional delay section light switch circuit as shown in FIG. Part..

As shown in the telephone table lamp, night ringing or when off-hook light will automatically light up, hang up after delay 45s lamp self-extinguish. Normally used for general ..

As shown mainly by the touch-delay switch one pair of D flip-flop CD4013 composed, it can be used in some machines power switch, delay switch is also used as lighting, it also ..

Battery-powered light control delay lighting a small lamp, a sudden power outage or night to ask a blown fuse, the room was dark, it is difficult to find a match and candles: S..

Bedside door fixture delay circuit has a simple structure, the advantages of affordable, the circuit with a hex inverter CD4069 composition. ..

But can not speak can be a good sound, light control stairs walkway lighting cast into the confirmation, this circuit has a high immunity under Tuo can, and indeed the soft-sta..

By inverter Gl, delay and width morning circuit 02 (CD4069) and RC integrating circuit configuration shown. When not gate output high when OI, C capacitor through Rl, D charge,..

By using a modified piezoelectric ceramics ashamed acoustic-electric transducer sound, light twist stairs walkway delay delayed lighting switch, circuit structure was relativel..

CD4069 is a digital integrated circuit fabrication using boron to delay light touch, it also uses j -wire connection force method, it can directly replace ordinary light switch..

Circuit The figure is sound, light, touch control delay self-extinguishing switch three electrical schematic diagram of the circuit from the power circuit, the signal conversio..

Circuit shown in Figure 2-48. Circle 2-48 (a) using 4.5V battery powered; Fig. 2-48 (b) AC capacitors drop voltage supply. Figure 2-48 (a) the delay time is determined by R3, R..

Circuit shown in Figure 2-49. The circuit is very simple, cold PTC thermistor element, jump characteristic thermal resistance of the lamp to control delay time. Usually the del..

As illustrated, is the use of an integrated Hall element AC motor off circuit, which is a magnet and other magnetic objects close to the Hall IC element of the induction motor ..

As illustrated, is the use of integrated Hall element DN6839 dividing circuit. Circuit, the magnetic field detected by pulsating DN6839 whereby the pulse waveform, then the pul..

Today, we share a principle circuit of electronic games. The main circuit in accordance with the host through the IC2 reset press SB2, VD1A-VD9A not light. Prizes (for example 5) Which position by the number of people pointing Dot Award, the host closing the ..

Circuit works: VT1 is integrated infrared receiver, the red-emitting diode Xiao perimeter triode reception. IC1 (NE556) is a dual time base manifold by R5, R6, C5, composed of an oscillation circuit, the oscillation frequency is about 1 200 Hz, by 5 feet to..

Carrier current remote control device or intercom circuit diagram as follows: ..

The speech synthesis circuit embedded microprocessor series, LCD drivers, clock oscillator, input and output ports, memory and multi-voice audio signal..

The figure is a simple dimming lights line, the light is adjusted by the multi-speed control switch K. When K to position "1" lights out; when K to position "2", the light..

AC 30V through I). - After the dish rectified by its positive terminal connected to the fuse IA IOOW bulb, the negative terminal is directly connected to the thyristor connecte..

BA2101 dimming using ASIC to produce a barrel of light touch stepping, Its a non- constant lamp suitable heir light. ~ Times each touch electrode sheet M, E lamp brightness can..

BA2181 dimming using ASIC production touch Stepping dimming lights, 4 eup with loud power consumption is low, anti-interference ability, small as stable by bite, make use of se..

CS6061A integrated circuit fabrication is the use of touch-step dimming lights, it has two state of the female state switching function, and J as reliable, able to adapt to lon..

Capacitors C2, C3, diode VD2, VD3 and other components simple capacitive half-wave rectifier buck power supply, the entire supply control circuit of electricity, the power supp..

Circuit shown in Figure dimmer to 555 as the core component. 555 and R1, RP, R2, C1 composition astable multivibrator, the oscillation frequency f 1.44/(R1 + RP + R2) C1, aroun..

A common car inverter circuit and working principle Car Inverter indicators: Input voltage: DC 10V ~ 14.5V; Output Voltage: AC 200V ~ 220V 10%; Output frequency: 50Hz 5%; Outpu..

A frequency modulator configured NE566 integrated voltage-controlled oscillator shown in FIG. When the signal input terminal potential DC position, forming a cycle of constant ..

Adjust potentiometer RPi and RPz, two motor speed can be changed. ..

Analog switch (double loop, double-break) and differential modulation amplifier complete the work. The carrier control switch, switch contacts in the time, from the inverting i..

As shown by a circuit TTL hex inverter can constitute a DC/DC converter, the 5V into 12V. This circuit provides all the functionality required for DC/DC conversion. The circuit..

As shown for the sensitive frequency demodulation circuit. The circuit uses IC LM565 phase-locked configuration, can track the frequency offset over a wide frequency range. How..

As shown in Figure 567 FM demodulation circuit. The figure, the FM signal from the input pin 3, the demodulated signal output from 5 feet. FM demodulation circuit can signal ce..

As shown, (a) for the three-phase step wave inverter output transformer winding connections; (b) in FIG its output waveform. ..

As shown, by connecting the two FETs, and form a CMOS digital inverter. ..

Car Inverter indicators: Input voltage: DC 10V ~ 14.5V; Output Voltage: AC 200V ~ 220V 10%; Output frequency: 50Hz 5%; Output power: 70W ~ 150W; conversion efficiency: more tha..

Circuit serial coded modulated control signal, amplify, and transmit high voltage isolation. 556 time base circuit and R1, R2, C1 and R3, R4, C2 form two astable multivibrator,..

Since the filter has a zoom function, front satin amplifier magnification such as d = 10/2. 515 = 3,97, the beam of the total, compared with 10 times magnification...

Many subwoofer low-pass filter circuit , this is just another. Circuit given here are based on discharge from ST Microelectronics shipped TL062. TL062 is a dual high input impedance J - FET operational amplifier with very low power..

In order to obtain wax dB / oct low pass filter of Butterworth times, the four 12dB / oct (2-order filter) block were four series, in order to obtain the flat characteristics of tanks, the opening value at all levels will be distribution,..

47. (3) isolation transformer and the low-pass filter junction isolation transformer and the wiring between the low-pass filter as shown in FIG. Figure (b) is a low-pass filter forms. ..