The circuit cuts off the power supply of the receiver and then powers it on again, so that the satellite receiver automatically resumes normal operation. The entire process does not require human inte'...

The attached figure is a schematic diagram of the charging circuit, using CN3703 as the IC. When the battery voltage is detected to be lower than 8.4V, the circuit enters the trickle charging mode, an'...

Here is a simple radio circuit made of CMOS digital circuit CD4011, which has high radio sensitivity. CD4011 is a digital integrated circuit containing 4 NAND gates.

I once bought a remote control electric curtain. The original control part used infrared remote control, which had a limited range and was inconvenient to use. For this reason, I modified it and repla'...

The circuit diagram of kg316t time control switch circuit is as follows: 1. Function and characteristics This type of time control switch uses an eight-bit microprocessor chip, PCB board direct sealin'...

The following is an aerator alarm designed by the author for fish ponds. It can monitor and alarm for several situations such as power outage, motor burnout, lack of tung, overload operation, motor an'...

The touch switch circuit made of 5G673 is shown in the figure. The circuit is composed of 5G673 IC, relay and some resistors and capacitors. 5G673 is an 8-speed output P with interlocking...

TDA5100 is an ultra-high frequency radio transmission circuit launched by Siemens. It has a complex internal structure, complete functions, high sensitivity, large output signal amplitude, few periphe'...

RF2908 is a single-chip direct-sequence spread spectrum receiver designed specifically for working in the ISM band, which complies with FCC Part l5.247....

As shown in the figure, this is a typical application circuit of the LM4903/4905 audio power amplifier (MSOP package). After the audio signal is input, it is coupled to the inverting input of the ampl'...

The figure shows the bias current zeroing circuit of LOG101/104. The input current I1 and I2 of LOG101/104 are limited to the range of 100pA～3.5mA. If the input current is greater than 3.5mA, it will '...

ED5026/5027 is a CMOS type large-scale digital encoding/decoding ASIC. ED5026 is an 8-bit encoding transmitter (expandable to 12 bits), ED5027 is...

TDA1551 power amplifier circuit diagram, dual-channel power amplifier chip, the output power of each channel can reach 11W.

The principle of acupoint detection is based on the difference in resistance between non-acupoints and acupoints (meridian openings) on the human body. At this time, electronic methods can be used for'...

This circuit is a subwoofer power amplifier made of LM3886 and NE5532 pre-stage. It can achieve better listening effect when matched with subwoofer speakers.

It is inconvenient to identify the time of a quartz clock at night. If a light indication circuit is set inside the quartz clock, it will be practical and convenient. This sound and light controlled q'...

This class D amplifier uses the high-fidelity two-channel class D amplifier control integrated circuit LX1710 produced by MICrosEMI, and an external power field effect tube to form a BTL amplification'...

The manual recovery voltage regulator circuit is shown in the figure. The current of the reference voltage power supply flowing through the voltage stabilizing diodes VD3 and VD4 is stabilized by the '...

Working principle: The circuit is shown in the figure. It consists of voltage reduction, rectification, filtering and delay control circuits. Press AN, 12V working voltage is added to the delayer. At '...

This is a bidirectional thyristor voltage regulator circuit. According to different needs, the charging speed of capacitor C can be changed by adjusting the resistance of potentiometer RP.