New Circuits Page 4

Circuit shown in Figure. Higher technical specifications of the circuit, is a very good OTL amplifier circuit. The frequency response of the..

CMOS gate has a high input impedance, resistance by human contact, you can make it the input level is changed, triggering gates toggled. ..

Circuit switch S is closed after the integrated circuit TDA1024 trigger is turned on. Whenever the zero crossing of the mains ..

As shown in the circuit to light when the intensity 700lx above action, this time through the ..

Circuit works: Figure 5 -2a in S. Alarm switch. If you press S, after the relay K. Electrical work, two normally open contacts Pull,..

AC to DC circuit is a sinusoidal alternating current into direct current crossing the circuit, if the input signal is not sinusoidal but triangular wave or sine..

In the work process analysis circuit diagram, for example, and use of work in flyback converter transformer model. Flyback transformer is mainly composed of ideal..

As shown in FIG ordinary triode 3DA87C to make long-range FM transmitter circuit,..

I used the components on hand, comprehensive reference ..

220V AC by Rl and R2 partial pressure, VD half-wave rectifier, the capacitor C in the left ends of about 3V DC voltage right. Adjustment potentiometer RP, so that the three-pol..

Circuit works: a circuit with condenser microphones to sense sound and converts it into a signal changes, and then ..

220V AC power via VD1 ~ VD4 bridge rectifier and voltage regulator circuit through R1, R2, VD5 cl composition and output..

Vegetable greenhouse temperature detection control circuit Greenhouses temperature detection control circuit, it is mainly by the ..

As shown in Figure by the built-in temperature sensor to control the triac TC620 achieve temperature control. Adjustment circuit Rp1 and Rn ..

As shown in Figure by the built-in temperature sensor to control the triac TC620 achieve .png">temperature control ...

T-121 temperature sensor electronic thermometer circuit diagram shown below..

Circuit from the MAX1494 and thermocouple temperature measurement system as shown, MAX1494 termination of 1N GND 5-32. The use of an external temperature sensor (for example, DS75) and SCM can be done carry junction temperature compensation work. MAX1494....

OP07 low drift (maximum voltage drift 30 FLV, maximum drift 0.6vV / aC), low noise (maximum 0.6 pLVp.P), ..

TOP100Y constituted by a + 5v, 1A output flyback DC switching power supply circuit is shown. This flyback..

35W switching power supply circuit having a set-top box output is shown in Figure 5. The five-way voltage respectively: Uo1 (+ 30V, 100mA), Uo2 (+ 18V, 550mA), Uo3 (+ 5V, 2.5A)..

Is another kind of connection switch incandescent spider life extension, it has two functions: First, just by electroporation,..

12V voltage instability, you should first check the switching power supply output section, as shown in FIG. The secondary winding of the..

Circuit is shown. C1 is the input filter capacitor. VDz VD1 composition and primary clamp .png">protection circuit . The control ..

As shown in the Sony KV-S29MHl (S movement series) TV switching power supply (SIR a 80145A) circuit; (A) is the power oscillation part; (b) is the regulator part; (c) is the output section...

Is shown in the output is 5V / 0.4A low-power switching power supply circuit, the circuit can be used to make transformer saturation soft-switching circuit...

The main circuit uses a two-input NAND gate four digital integrated circuits, wherein the composition..

With NE555 making push-button delay section lamp circuit shown in Figure 3-5, the circuit from when base integrated circuits, ..

Is a good touch-down can delay the lamp, the circuit is characterized by: the static power consumption minimal; External switch terminal ..

1C is a CD4 cries O. A (16) feet for the Vcc terminal. (8) feet for the ground. (12) feet for the reset terminal. (7) feet for Qt end, (3) feet to q. End (Sh, U). (Il) FW exter..

1C is SK - 2 integrated voice, when the object hit the sound is received in the body Xi ester cylinder MIC, the audio signal goes through a coupling obstacle to 1C. After ampli..

555 IC using a delay circuit 2 It is actually a one-shot circuit. A delay time of 1. 1R3 C3. Typically R3 taken lkfl ~ lOMfl, C3-5000pF ~ lOOOpF, gave a delay of 5y s-15min...

555 IC using a delay circuit of the four b They are a jump from high to low transition of the delay circuit. That button is pressed SB snow, the output is high, after some dela..

555 IC using a delay circuit ter It is the transition from low to high delay circuit. Ie after pressing the button SB, after a delay after birth, the output terminal goes high ..

Circuit shown in Figure 6-24. Both ends of the relay coil ' in parallel with a resistor Rf or auxiliary diode VD, is equivalent to power after a short circuit coil core increase, thus making prolonged release. Figure 6-24 (b) of Rf can not...

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...

Using 555 lights lighting group delay IC circuit of the circuit shown in Figure 2-46. By the 555 IC and resistor-capacitor circuit composed of the delay. The circuit without light transformer T is still energized, energy. Delay time is determined by Ri, C2...

UGN-3501T Hall sensor due to the composition of the counter circuit diagram UGN-3501T has a high sensitivity, it can feel very small magnetic..

It is shown using the MCS-51 series single-chip interface circuit 8051. Chip SED13 35 dot matrix LCD display for the controller, which can control..

Shows 8 digital tube display driver circuit, driven by the two ICM7211A, BCD / = binary data signal is sent to the BO-B3 ICM7211A end, select the digital signal divided into two groups were sent sentenced Dl ~ D4 end...

Capacitive dimmer switch circuit shown in Figure 9. It is the use of capacitive reactance principle of alternating pairs made...

220V AC via a resistor Rl buck, VDI rectifier, VD2 and c5 filtered output voltage of approximately 9V DC voltage supply manifold electricity. R3 for the manifold input AC synch..

220V AC by R3 buck figure, VDI rectifier, VD2 and C3 filtered output voltage of about 3,9V DC supply set to block BA5173 electricity. Rl is manifold zero-crossing detector curr..

1C foot VIII made a number of training device, from the trigger terminal CI. f-off positive input pulse. End by supporting a n quotient output level. Lose. commercial electric ..

25kHz using thyristor inverter welding machine circuit Using high frequency 25kHz, thyristor inverter arc welding machine, which can be smaller transformer, the circuit shown i..

36dB/ocf Butterworth filter consists of three sub-ruined structure, each stage box with two filter sections c work zdB/ocf), in order to point a 3dB frequency characteristics n..

By analyzing the filter capacitance or inductance is filtered DC output is still more or less volatility. In situations requiring high level..

24dB/oc seven times Butterworth (maximally flat characteristic) constituted by the two filters, each box has two books enough filter (12dB/oct), in order to make a 3dB point tw..

12dB/oct Butterworth second port (most flat characteristic) of the filter circuit value is pregnant shall be 0.707 to get the characteristic flat, and for cl, the feedback capa..

Novel timing switch circuit in addition to a general timing circuit "Variable Timing" adjustment function, also has a ..

Circuit works: Figure shows a dedicated stepping motor controller L297 key pin, 17 feet (cw / ccw) is used to control the stepper motor rotation direction..

4Y4 constituted by a monolithic liquid crystal display rangefinder circuit as shown in FIG. The instrument includes an ultrasonic transmitter, a receiver, LCD display, buttons,..

40kHZ ultrasonic transmitter circuit of five, by the time base circuit LM555 and the external components 40kHZ multivibrator circuit, the resistance adjusting resistor RP can c..

Ultrasonic drilling machine is the dairy industry essential jewelry processing machinery, mainly for natural stones, crystal agate, jade and glass..

The circuit voltage 9V, current consumption is only 5mA, the home can be adjusted within the range of 150 ~ 180kHz frequency,..

SB5227 ultrasonic signal output is very weak, it must be sent to the drive via the power amplifier. A typical transmission..

Given by the ultrasonic transmitter circuit T-40-16 and other discrete components. T-40-16 as a feedback sensor..

Remote control dimmer lights consist of two parts ultrasonic transmitter and ultrasonic remote control dimmer receiver components,..

Receiving circuit as shown, when the infrared receiver receives the remote control signal emitted by the transmitter, after..

Since the transmission circuit inductive wireless headset must be fixedly mounted on a wall or ceiling of a room, it can not be..

As shown in Fig range is a frequency of 400 ~ 850MHz UHF amplifying circuit. Printed circuit For best performance and results, the circuit should be used by the silver tin processing...

32.FM radio circuit ; FM radio tuning circuit circuit (2) FET circuit in FM radio application tuning circuit is shown in Figure FM radio circuit, which is composed of a high fr..

This article describes the use of super-regenerative FM receiver FM receiver principle, due to the use of high gain miniature ..

Radio FM radio chip circuits use different, it works slightly different, as shown in the use of DA-101 chip FM Figure radio circuit. ..

200W lamp switch control, power supply voltage is 220V, is about 100lx illumination light automatically turned on or off. In the ambient light is dark time sensitive resistor w..

It shows a display driving circuit digital voltmeter. Liquid crystal display (LCD) itself does not light, it is the use of external..

An operational amplifier, a diode bridge rectifier and DC mA AC voltmeter tables as shown in FIG. The figure, the operational amplifier LM324...

Self-excited transistor inverter circuit. These types of inverters better performance, but also relatively simple diagram 2-122, available for 8 ~ 40W fluorescent lamps. When the power supply voltage is within 20% of the soil changes, which can operate stably...

The tester consists of an dual time base circuit 556 and a number of RC components and other components. Illustrated by the right half of the..

300 ~ 1500kW direct distribution of Lightning generator for single capacity 300-1500kW straight with the generator of Lightning FIG. 300 to 1500kW straight with a generator of ..

22W by Ct and R, RC Buck, rectified by n. c, filtering. vz 3V DC regulated output power, before U, V2 and MIC power supply. When the audio signal to the beam, the microphone MI..

220V AC by the VDI-VD4 bridge rectifier to produce a full-wave pulsating voltage electricity for lights H1 ~ H4, the other side by R3 and VD4 buck regulator, C2 filtered output..

Simple and easy to do single flashlight battery DC-DC driver circuit and leave the battery production. Figure Parametric voltage 1.5V,..

220V AC by VDl a VD4 bridge rectifier, resistor Rl0 buck regulator VD5 regulator and C2, after filtering supply electricity to the manifold. Manifold output trigger signal is d..

220V AC by VDI ~ VD4 bridge rectifier, lights the way for Hl, H2 electricity, another pass Rl, R2 two resistors buck, limiting the capacitor CI, C2 filter manifold A power supp..

220V AC by VD1-VD4 bridge rectifier, all the way to supply four lights Hl - H4 electricity, another pass resistance Rl buck limit, filter capacitor C1 supply manifold A electri..

220V AC by VD1-VD4 bridge rectifier, all the way to eight lights H1 ~ H8 supply of electricity, the other passing RI drop pressure, VD5 regulator and filter cl A power supply m..

220V AC by Ri buck, Diao!. C1 chain ferry flood ear, shouted for the regulator to l2V make [C collapse. The film hand touch under ridicule the MT electrode films, clutter body ..

220V AC by VD1-VD4 bridge rectifier, all the way to supply four lights HI ~ H4 electricity, another pass down Rl pressure limiting, VD5 voltage supply ..

220V AC by Cl buck, VDI rectifier, VD2 regulator and filter capacitor C2, output stable 12V DC voltage for use module A2, Al through internal A2 6V regulator outputs in 6V DC v..

220V AC after VDI ~ VD4 bridge rectifier, the output of a point, all the way to direct electricity for lights H1 ~ H4; another way through Rl buck, VD5 regulator, about 5v DC o..

22, Ov AC by thyristor VSl ~ VS4 H1-H4 electricity for lights, on the other hand it down through the transformer T, VDI ~ VD4 rectifier, VD5 regulator and Cl filtered output of..

Street wear trench pipe installation commonly used Concealed wiring methods. The control section is installed in the front door or in the centralized..

Foot using a battery-powered blinking warning lights roadblocks N, can H1 Wu AC power to local roads Shi I make barricades with warning. hF555 and RP1,..

Family karaoke 0K lighting design of a variety of methods to control circuit, the control circuit described here is a kind of four-way light output,..

The circuit works as follows: every morning, light shines into the silicon photocell, generating a force, this force will transistor VT1 conduction,..

300 ~ 1500kW direct distribution of Lightning generator for single capacity 300-1500kW straight with the generator of Lightning FIG. 300 to 1500kW direct distribution terminal c lightning generator..

Circuit works: The controller consists of a power supply circuit, a control circuit and audio amplifier is composed of three parts. ..

It uses pattern SH803 flash IC, within reservoir eight kinds of programs and a variety of dimming, change the speed of light,..

A simple two-transistor inverter circuit has been built for this experiment. The transformer shown in Fig. 1 is the inverter transformer. The inverter output voltage is in the form of pulses with an estimated peak value of about 700V. When a Fluorescent lamp....

I found the following schematic from online sources. It’s about generating and launching ions. I did not built this circuit. But I’ll present some ideas on how to focus ions so that they will travel a longer distance. ..

A constant-current power LED driver circuit is shown in Fig. 1. Q1 is turned on by R1 and acts as a variable resistor. Q2 is an “over-current” switch and R2 sets the maximum current. For the power LEDs that I use, the 1W circuit draws about 440mA from the DC....

Here is a simple circuit based on 555 IC that generates a pulsed magnetic field. You may use this field for pulsed magnetic field therapy. Human body is influenced by natural magnetic fields such as Earth’s magnetic field, fields due to geomagnetic storms,....

I built two secondary coils: Small coil D25.4/H119 (Diameter=25.4mm and Height=119mm) and Medium coil D73/H228. I experimented with the spark gap, and observed that a series spark gap is better in terms of power handling, noise, and spark discharge length.....

The circuit uses an IRF740 MOSFET which is rated at a maximum DS V value of 400V. The avalanche voltage is calculated as 3520 1. max   DSA VV V. This means that up to about 500V of inductive kickback voltage can develop in the switched coil. More than....

There is a voltage divider composed of R2 (10M) and R3 (100K) which effectively divides the voltage across C2 by about 100. Also note the ground of C2. It is connected to the inverter ground for reference. I used an LM358 comparator to keep track of the....

An LC oscillator is driven by pulses which are generated by a 555 IC based oscillator. LC oscillator is built around 2SC2078. The circuit is shown in Fig. 1. The circuit and the Ansoft Designer simulation. Measured and simulated resonance frequencies are....

The circuit described here uses an IRF840 MOSFET which is rated at a maximum DSV value of 500V. The avalanche voltage is calculated as 36501. max  DSA VV V. This means that up to about 600V of inductive kickback voltage may develop in the switched coil.....

There are two ways to overcome the effect of gravity using electromagnetic forces: 1. Using a rotating magnetic field and a radial current flow. The force is in the direction of vB q , so out of the page for the configuration shown in Fig. 1. Electron....

A commercial stun gun circuit which produces about 100KV pulses from a 9V battery is shown in Figures 1-2. The heart of the circuit is a power oscillator built around Q1. When the switch S1 is closed, C1 is charged through 1K resistor and the feedback coil.....

This is one way of generating an intense magnetic pulse. A charged capacitor is discharged through a loop shaped inductor and an intense magnetic field is generated. This circuit burns a 555 chip which is placed slightly above the loop shaped inductor (L2). ..