Disinfection cabinet circuit principle is the use of infrared heating, in a closed cabinet to create a high-temperature environment, tableware disinfection. Circuit shown in FI..
Figure 1-87 is a good loudness volume control circuit, it uses an ordinary potentiometer, used element pieces are scarce, but the effect is quite remarkable. The electric road ..
Figure 1-89 is an example of loudness control circuit. Potentiometer from the ground 30% of the total resistance at the tap. When the slide arm when screwed to the tap position..
Figure 3173 is a mechanical braking, dynamic braking, reverse braking function wound rotor induction motor speed can be positive and negative control circuit. Figure, KI, to st..
EPSON PHOTO 830U printer power circuit It shows EPSON PHOT0 830U printer power supply circuit, which belongs to the switching power supply. In normal operation, the power suppl..
Digital signal processing circuit when work needs to cooperate with it with a memory for temporarily storing image data. DPTVT-3D/MV digital processing chip need four KM416S102..
Discharge After the memory circuit After the memory circuit is also an instantaneous action, the delay reset circuit. When the input signal to a movement that is open when the ..
Discharge before memory circuit Before the memory circuit is considered instantaneous action, the delay reset circuit. When the input signal to one that is action, and start ti..
DC power supply can also be controlled via an optical fiber. The circuit is a small DC motor ( 1/12hp) providing an insulating speed control channel. The control logic is an in..
Fans (Ceiling) Fifth gear speed control circuit shown in Figure 3-6. It uses capacitor step-down, three-terminal fixed 7806 integrated steady voltage regulator Ai regulator to ..
Ethernet is the most widely used networking technology with high reliability, media informative, easy to expand and update, etc., in businesses, schools and other fields are wi..
Dimming control circuit as shown in FIG. Single-chip I/O port sinking method to achieve control thyristor switch and dimming control. MOC3041 optocoupler with internal zero-cro..
Exars XR-L555 circuit typical power consumption is 900 W, the power supply voltage of 5V, micro-power circuit, XR-L555 can be used directly in place of the 555 timer. Delay by ..
Dual Timer Exar XR-2556 for the first time after the timing of the output can be triggered by capacitive coupling second timing pin. When the trigger input is used, in order to..
FM radio transmission frequency band design, it can be used with any FM radio receiver to the high-frequency signal and restores the high frequency signal from the audio signal..
Double tube fluorescent lighting circuit is shown. In some cases the need to improve twice, single-tube light can not meet the lighting requirements, double tube lighting. Phys..
Electronic ballasts have a wide operating voltage range, fast start working no noise, no flicker, save energy and so on. It has been more and more people to accept. The circuit..
DC relay or contactor in addition to using strong excitation pull way accelerate, accelerate the release, but also the following circuit to achieve the purpose of accelerating ..
FET relay circuit 2 It is actually a JS-20 time relay circuit. SA before the switch is closed, the relay device KA tends to release state. After SA closed circuit delay start, ..
Discharge time relay circuit The timer field effect tube, and therefore have a high timing accuracy, timing and so long. When the R3-IOOOMfl, C 200VF when a delay time of 8h. P..
DC feedback works shown in Figure l-31. In the circuit, R7 connected to the output terminal (the midpoint of static) D of the differential input stage Vr, between the base. Sta..
Dancing blanket principle is very simple, it is a direct retrofit keyboard or gamepad. Each key on the keyboard and gamepad are actually a switch, as long as these switch on th..
DC-coupled multi-stage amplifier circuit a (3) multi-stage DC-coupled amplifier in DC-coupled by a multi-stage amplifier circuit amplifying circuit, if used NPN type transistor..
DC to 500KHz of 100W amplifier photoelectric starting op amp high input impedance, high gain characteristics, to achieve transformerless output power 100W. Load current up to 1..
DC current of negative feedback BTL circuit shown in Figure 2, the abolition of the standard BTL circuit C12, C22, the circuit of the DC; resistor R16 and R26 are sampling resi..
Converters and data sampling: Figure 27-47 12-bit A/D converter AD574 and 8031 to the interface circuit. Parameters measured by the multi- way switch after CD4051 strobe to sam..