New Circuits Page 261
- Page 261
-
As we all know, from the amplifier output stage to the previous stage, although a large loop feedback to improve frequency response and harmonic distortion indicators amplifier..
-
-
Audio AGC can keep track, monitor audio preamplifier output signal level when the input signal increases, AGC circuit automatically reduces the gain of the amplifier; when the ..
-
Audio power amplifier circuit from LA4112 integrated power amplifier and other components of FIG. ..
-
Based CNC programming gain instrumentation amplifier PGA202/203 circuit diagram as follows: ..
-
Because all of the resistance values are equal, so the Cantonese OP amplifier 4 magnification number (A) is equal to l, but according to need, by selecting small exposed the ug..
-
By ISO120 and INA105 instrumentation amplifier as shown, multiplexer constituted 600V battery system battery monitoring circuit. This circuit 50 in series 12V battery (ie, the ..
-
-
By an integrated power amplifier TDA2040 (lC) can also form OCL power amplifier (OCL meaning is no output capacitor power amplifier). Circuit shown in Figure 10-10, which uses ..
-
By the pLPC1342V and NE (two company names and fever on the tube amplifier circuit 2SA1227A 2SC2987A composed of maximum output power up to 120W, the cutoff frequency up to 500..
-
Chinas national conditions, general living room area of more than twenty square meters, and usually doubles as a bedroom or living room listening room. If the speaker sensitivi..
-
Circuit shown in Figure 240 of the circuit structure is very simple, with only four transistors to achieve circuit from input voltage put large, inverted, and promote the whole..
-
Closed loop amplification circuit and by RL and. Decided, when magnification is 100 times (40dB), the input signal is high, in order to ensure a stable circuit work for, people..
-
-
Adopt and put the intermodal servo preamplifier circuit as shown, the circuit is 115V, 60Hz servo motor amplifier provides a differential output. An op amp inverting connection..
-
Amp circuit as shown in the pre-television. The pre-amplifier circuit is Qioi and other parts of xlol. Q [ol and biasing element is configured as a common emitter IF amplifier,..
-
As shown for the OPA37 constitute a low-noise preamplifier. Input signal is applied OPA37-inverting input (pin 3), circuit RL, CL is the load impedance electromagnetic pickups,..
-
BA328 with Dual preamplifier circuit having fewer external components, easy installation features, single 8-pin DIP package. Circuit characteristics are as follows: wide operat..
-
Bong ordinary differential amplifier circuit and the difference circuit is that it has made a voltage-current conversion circuit rPl constituted with R. And Rl o of the OP ampl..
-
Circuit 90s common recorder head amplifier circuit, the choice of ultra low noise precision op amp OPA37 pre-formed head amplifier. Circuit can provide a standard NAB equalizat..
-
Circuit schematic as shown below, using the MC2830 voice circuit is formed. Traditional voice circuit can not distinguish between speech and noise of the input signal. In a noi..
-
Circuit shown in Figure 3-10. This is a multi-function input with a preamplifier, including the tuner input, a magnetic tape playback input, magnetic phono input and phono equa..
-
Circuit shown in Figure 3-8. Input signal through a low pass filter to the input of the differential amplifier FET former composition are evaluated once preamplifier output of ..
-
Balanced diode mixer circuit is shown. Diode 2AP9 2. Due to the use of two diodes and the voltage is large, the diode operates in the off state, it is also known diode switch tube balanced mixer...
-
Balanced mixer circuit is shown by the two dual-gate field effect transistor. RF signal by the input signal transformer Tl effect transistors coupled to the gate of the two, th..
-
Chemical mixer circuit having a stirring speed, thermostat and timer alarm function can be used in chemical, steel and other industries. (1) circuit works heating magnetic stir..
-
Commonly used in industrial and mining enterprises power mixer, mixing materials because often smell or dust, the operator should not be too close to the contact. Light control..
-
M5227P is the application circuit, for graphic equalizer, its control curve is always logarithmic frequency axis to represent rate, and require the same control curve pitch equal to ensure that the band..
-
Another example of application is extended. It uses TA7796 and five external transistor to form a ten -band equalizer circuit, the lowest center frequency of the equalizer for ..
-
A balanced output mentioned, people tend to immediately think of the positive phase amplifier output terminal increases 0P amplifier as the inverting amplifier circuit, normal ..
-
As shown, the upper and lower symmetric configuration two basic differential amplifier, differential input + IN and -IN are respectively connected cares balanced input. Because..
-
As shown, there are two corner frequency: Start frequency attenuation transition of several children F 1/27rC3 (Ri + R2); by the decay into a flat corner frequency, LI. l/2rTC3..
-
At high frequencies, q, Cz can be seen as a short circuit (i.e. RPi not present), as shown in Figure 4-6 (a) in the apparatus shown in FIG equivalent to 4-6 (b). Then there are..
-
Bass player with a stereo control as shown by LM1877 amplifier circuit configured. Cermet stereo microphone pickup stereo turntable on the left and right channel audio signals ..
-
Circuit principle: the input signal via IC1-1, and external components of the fourth-order low-pass filter to vary the slope of 24db/oct low-pass processing (figure value fc 70..
-
Circuit shown in Figure 1-560 RPi is treble control potentiometer. Because C3, C4 is larger than cl, C2 capacity, so high-frequency signals, Pat, C4 can be regarded as a short ..
-
Common diode balanced modulator circuit is shown. It consists of two identical performance diodes and a center-tapped transformer T composition. Diodes VD1, VD2 are 2AP9. Other..
-
A circuit diagram of the T1 is a low-impedance output transformer, it comes with 5000-8 ohm resistor. ..
-
This figure is converted into the manifold LM567 SCA broadcast reception information machine schematic. LM567 narrow-band phase-locked loop center to meet the basic role of SCA broadcast demodulation...
-
RF amplifier Q3 to diode D1-D4 in the mixer, Q1-Q2 through T1 and T2 provide liquid oxygen injection 10MHz for D1, U1A and U1B and U2 is an audio amplifier. Detailed information is shown in the figure T1 and T2. ..
-
There are two resonant circuits tuned amplifying circuit known as a double tuned amplifier circuit, i.e. the transformer Ti, T2 of the primary and secondary coils are provided has parallel resonance capacitor ..
-
It shows a ceramic filter composed of FM IF amplifier circuit, the FM intermediate frequency amplifier circuit mainly by the IF input variable voltage regulator T}, ceramic filters CF1,..
-
877 ~ 924MHz RF2152 power amplifier constituting the circuit diagram: ..
-
A wideband high-frequency amplifier is shown, the circuit resistance and capacitance coupling of common emitter amplifier can be used to amplify high frequency signals. When th..
-
As shown for the 400MHz broadband differential amplifier circuit. The circuit consists of two parts: the incoming broadband differential amplifier integrated chip OPA660 compos..
-
As shown in FIG constitute grounds RF2132 linear power amplifier circuit. Radio frequency (RF) signal from the input pin 3, via a preamplifier, after the last stage power ampli..
-
As shown in FIG constituted by 380MHz RF2175 linear amplifier application circuit. Radio frequency (RF) signal input from 6 feet, after the preamplifier, after the last stage p..
-
As shown in FIG constituted by 880MHz RF2347 low noise amplifier application circuit. Radio frequency (RF) signal from the input pin 3, after the output of the amplifier 7 feet..
-
As shown in FIG constituted by 915MHz RF2155 power amplifier application circuit. Radio frequency (RF) signal from the input pin 7, after the preamplifier, after the last stage..
-
As shown in FIG constituted by RF2103P 915MHz RF amplifier circuit. P1 for the outlet, which P1-1 take power Vcc, P1-2 ground, P1-3 then power down control voltage VB; J1 to th..
-
As shown in FIG constituted by RF2104 830MHz *** amplifier circuit works. Radio frequency (RF) signal from 5 feet input, via a preamplifier, amplified by an amplifier stage aft..
-
As shown in FIG constituted by RF2126 2450MHz end-stage linear power amplifier circuit. Radio frequency (RF) signal from the input pin 1, after amplified by the amplifier 7 fee..
-
As shown in FIG constituted by RF2324 1880MHz internal amplifier collector bias application circuit. Radio frequency (RF) signal from the input pin 3, via a preamplifier, after..
-
By the differential input stage, a differential voltage amplification, a forced differential voltage amplification, slow punch amplified complementary push-pull amplifier outpu..
-
CLC221A design with traditional amplifier OP ill, it is a high-performance current-feedback amplifier OP e grand manner using pressure - phase or same phase can be, but with th..
-
Car circuit used by the external voltage controlled amplification of wideband amplifiers lC (TL0216); so as to have the compression characteristics 2udB b: input circuit, resis..
-
555 timer circuit unsteady open and closing times are independent of each other. Wherein a time constant is 1.1RcC2, another time constant is 1.1RcC3. Free-running period is th..
-
As illustrated, the 555 (or 556 1/2) and three resistive, capacitive element connected as shown, constitute astable multivibrator mode. And one-shot mode except that only the t..
-
As shown for the three astable circuit. From this circuit can be seen, each level of the base of the transistor by a capacitor connected between the two levels are tightly coup..
-
Astable multivibrator using too many electronic devices, widely used in the pulse signal generating circuit, which works as 17-18 in FIG. From the figure shows, with A coupling..
-
The device circuit works shown in Figure 11. Power outages are frequent thing, but some occasions, the power does not allow (such as the ongoing surgery, etc.). LSE with simple circuit design, fully automated...
-
AC power supply voltage is normal, relay, connected to the load (Rfz) circuit. When the load short-circuit failure, KA voltage drop across quickly, KA release, cut off the load..
-
Adjusting Ro or RP, you can change over the current setpoint. Circuit shown in Figure 14-98. Overcurrent, V conduction thyristor, transistor VTi, VT2 off immediately cut off th..
-
As shown by INA321/322 input current protection circuit shown. INA321/322 has the input end of the inner electrostatic discharge (ESD) protection diodes when the input voltage ..
-
As shown for the speaker protection circuitry. It is designed for the left and right channels operate independently. The figure (to the left channel as an example) of R2, C4 an..
-
As shown in FIG TDA4866 constituted by an external signal generator circuit protection. The role of the internal protection circuit is out of control, the external protection c..
-
As shown in FIG circuit protection circuit is the use of optocouplers or not the on-off control. Voltage is normal, almost no output optocouplers, VT pipe is reverse biased and..
-
As shown in FIG grounds INA155/156 constituting the input current protection circuit. INA155 input internally with electrostatic discharge (ESD) protection diodes when the inpu..
-
As shown in overload protection circuit power 650mW, supply voltage 12V, speaker 25 ohms. Part Component Specifications: VT1: transistor NB111EH/J VT2: Transistors: NR001E VT3:..
-
As shown, the circuit uses a zener diode D1 achieve overvoltage protection, a diode rectifier bridge to achieve reverse voltage protection. Diodes 1.4V loop will cause the maxi..
-
As shown, the circuit uses the Zener diode D1 limits the surge voltage, use four diode rectifier bridge to prevent reverse voltage. Zener diode D1 is 36V, optional 1N4753A or P..
-
Battery deep discharge would plate curing, shortening the battery life. This could be set discharge protection device. Circuit is shown. When the battery voltage drops to the t..
-
Battery discharge will cause plate acidification, affecting the normal life of the battery. To solve this problem, we designed a special micro-power battery over-discharge prot..
-
Bidirectional thyristor control. Adjust potentiometer RPi and RPz, you can change the lower and upper limit values. LEDs VLi and VL2 are less pressure and overpressure indicato..
-
Both circuits are used to control the thyristor contactor KM action to overcome the break phase protection relay prone to malfunction or refuse to move, and enhanced the sensit..
-
By resistive element as an auxiliary neutral point voltage leakage protection circuit, as shown in FIG. Resistance selection should consider the resistance, power consistency r..
-
CB85-10 leakage protection circuit diagram, T for the trip coil, SB is the test button, Ri is simulated human resistance ..
-
Cable radio broadcasting studio in rural villages and towns with a high-power amplifiers easily damaged, the main reason is the frequent use, no special management, often shutt..
-
Capacitor C3 according to cut off the power (ie, VT cutoff) of the delay time to choose. Figure, SB is the reset button after the failure to eliminate. ..
-
Circuit as shown, can be used for operating voltage of + 5V SBC power to prevent damage due to over-voltage power supply throughout the SBC. ..
-
Circuit is shown, it is used in the power supply circuit can occur in the case of over-voltage grid on or off phase, promptly cut off the power supply to protect power capacito..
-
Circuit is shown, which consists of a DC voltage regulator circuit, the delay circuit, overvoltage and undervoltage protection part of the implementation of circuit, and the li..
-
Circuit is shown. It comprises an infrared sensor head, electronic switches, audible audio circuit, FM radio circuit. Install it in the bank, the Treasury and other chamber or ..
-
Circuit shown in Figure 3-73. The line is to use the power of instantaneous power failure, the self-induced emf generated by the motor to implement now instant shutdown protect..
-
Circuit shown in Figure is the use of thermal protection system consisting of circuit MIC2951. The circuit is set by adjusting the temperature threshold R2. ..
-
Circuit shown in Figure, + 24V power supply is obtained by the electromagnetic chuck 110V power down. When the electromagnetic chuck circuit make contact JK closed magnechuck C..
-
Color TV main power protection circuit ..
-
- The use of a number of integrated circuits rather gated automatic lighting circuit device formed, which consists of door and window components of the sensor, CD4093 digital integrated circuits with state relay and power supply circuit...
-
FKL-32 type automatic thyristor excitation device suitable for terminal voltage of 400V, capacity sookW and below synchronous generator used for automatic adjustment of excitation...
-
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. FIG automatic level control ..
-
Circuit operation principle of the device shown in Figure. Usually infrared light emitting tube VD1 infrared radiation emitted in infrared receiver tube VD2, leading to VD2 internal resistance becomes smaller, so the LSE feet high output at this time, when the..
-
Circuit works: When the water tank level is lower than said point, F., F2 consisting of RS flip-flop, Q output high, relay, pump the water; when the B point dipped into the water, 6 foot F2 becomes a high level, RS flip-flop on hold, the pump continues....
-
A star-delta Bolt switching a starting circuit. Often used in Figure I-5 (a) of the knife; wiring. Therapy, but there are security risks in this method, that is, when KM; Jie b..
-
As shown in FIG Xin US recorders automatically circuitry. The circuit mainly uses a new power switching device TWH8778, making simple, without debugging. TWH8778 shape and each..
-
As shown in FIG generator start battery automatic monitor circuit diagram ..
-
As shown in FIG grounds PGA202 and comparators, counters constitute automatic range switching circuit. The circuit at the output of the comparator compares VOUT when VOUT VREF ..
-
As shown in Figure is CD4001/CD4541 nickel-cadmium battery automatic charger circuit. This circuit is designed for the 5th, on the 7th rechargeable nickel-cadmium batteries are..
-
As shown in the circuit in order to stabilize the lamp brightness L, using thyristor AC automatic voltage regulator circuit. Access to this end a diagonal line from the thyrist..
-
As shown is a low voltage frequency use MAX630 low battery voltage detection function constitutes offset boost converter power supply. It features when the battery voltage is b..
-
As water heaters, microwave ovens and other heating equipment temperature control circuit; Figure 16- 53 (b) as air conditioners, refrigerators, fans and automatic fire extingu..
-
Attached to a separate harmonic generator stator windings, leads to the third harmonic voltage thyristor rectifier supply made after the motor field. Since the output voltage v..
-
Automated instrumentation wiring using interference filters for the inverter is not as harmonic processing and the like, when the work will be radiated field strength of strong..
-
Automatic door control circuit diagram. Human motion detection using the new pyroelectric infrared detection module HN911. VT used as a delay control by adjusting potentiometer..