how to detect the discoloration LEDs?
On 2018-10-26 16:40:18 in Memory
As shown in Figure 5-18,a circuit for detecting a discoloration light emitting diode (LEDs),a multimeter is placed in the RX10k2 block,and the two pin is connected. ...
How to measure the color LED dot matrix display?
On 2018-10-29 15:33:54 in Memory
The color LED dot matrix display is the same as monochrome.You can use short columns or rows of methods to detect,just a little cumbersome operation ...
how to detect the LED emission tube?
On 2018-10-26 16:31:21 in Memory
The use of multimeter to detect LED luminous platoon is mainly to check whether the LEDs are good ...
The main parameters of LED
On 2018-10-31 11:11:54 in Memory
The main parameters of LED include the maximum working current Im and the maximum reverse voltage Um ...
What's the price of MCP9804-E/MCVAO HIGH-ACCURACY, 12-BIT THERMAL SE Microchip Technology?
On 2018-10-31 11:50:14 in Memory
ALLICDATA Electronics offers more than 1,000,000 items in stock with immediately delivery.And competitive price.MCP9804-E/MCVAO HIGH-ACCURACY, 12-BIT THERMAL SE Microchip Technology real time stock quantity and price,please search online catalog. ...
what is an infrared light emitting diode?
On 2018-10-26 16:45:24 in Memory
determine the order of the arrangement of the pins.The multimeter is placed in the R*1 thousand euro file ...
How do you measure infrared light emitting diodes?
On 2018-10-26 16:48:19 in Memory
When detecting infrared light emitting diodes,there is a big difference between the pointer type multimeter and the digital multimeter ...
What's the price of MCP9701AT-E/TTVAO SENSOR TEMP ANLG VOLT SOT-23-3 Microchip Technology?
On 2018-10-31 11:46:31 in Memory
ALLICDATA Electronics offers more than 1,000,000 items in stock with immediately delivery.And competitive price.MCP9701AT-E/TTVAO SENSOR TEMP ANLG VOLT SOT-23-3 Microchip Technology real time stock quantity and price,please search online catalog. ...
What's the price of MCP9700AT-E/TTV10 SENSOR TEMP ANLG VOLT SOT-23-3 Microchip Technology?
On 2018-10-31 11:37:28 in Memory
ALLICDATA Electronics offers more than 1,000,000 items in stock with immediately delivery.And competitive price.MCP9700AT-E/TTV10 SENSOR TEMP ANLG VOLT SOT-23-3 Microchip Technology real time stock quantity and price,please search online catalog. ...
What's the price of MCP9700AT-E/LTV17 SENSOR TEMP ANLG VOLT SC-70-5 Microchip Technology?
On 2018-10-29 15:54:14 in Memory
ALLICDATA Electronics offers more than 1,000,000 items in stock with immediately delivery.And competitive price. ...
Structure and characteristics
On 2018-11-01 16:47:41 in Memory
LED digital tube also known as semiconductor digital tube ( Figure 1-1-5 ),it is a number of light-emitting diodes arranged in a fixed pattern and packaged together the most commonly used digital display one of the devices ...
What is an optical coupler?
On 2018-10-27 10:41:35 in Memory
Optical coupler also known as photoelectric isolator,referred to as optocoupler. Optical couplers use light as a medium to propagate the Telecom number ...
what is an infrared receiver?
On 2018-10-26 16:53:35 in Memory
The infrared receiving tube is a semiconductor device used to receive the infrared light wave generated by the infrared light emitting diode and convert it into electrical signal. ...
how to detect a photosensitive transistor?
On 2018-10-27 11:13:49 in Memory
the pin of the pin identifies the pin arrangement of the photosensitive transistor as shown in Figure 6-8,the foot near the pin or the longer one is the emitter E,and the far or shorter foot of the foot is the collector C ...
How to detect fast recovery, ultrafast recovery diode?
On 2018-10-26 16:05:55 in Memory
The method of measuring fast recovery and ultrafast recovery diode with multimeter is basically the same as the method of detecting plastic sealed silicon rectifier diode. ...
What is a bidirectional thyristor?
On 2018-10-29 14:25:17 in Memory
Bidirectional thyristor(TRIAC)is a new type of semiconductor device developed on the basis of one-way thyristor ...
how to detect a dual base diode?
On 2018-10-26 17:10:47 in Memory
discriminant emitter E. When the multimeter is placed in the RX1k2 block and the positive and reverse resistance values between any two electrodes are equal (2~10k2) with two forms ...
The main characteristic of the diode is Danxian
On 2018-10-30 10:56:52 in Memory
It refers to the maximum positive current allowed to pass through the diode during long-term operation,which is related to PN junction area and external heat dissipation conditions. ...
what is a double base diode (single junction transistor)?
On 2018-10-26 17:09:25 in Memory
Double base diode,also known as single crystal transistor (UJT)is a three terminal semiconductor device with only one PN junction.the circuit symbol,internal structure and equivalent circuit of double base diode. ...
how to detect and repair the photoelectric switch?
On 2018-10-27 10:40:06 in Memory
The detection method of the transmitting tube and the receiving tube is as follows. ...
Headphones and piezoceramic buzzers
On 2018-11-03 15:17:06 in Memory
Headset is also an electro-acoustic conversion device,which is similar in structure to an electric speaker,it is also composed of magnet,voice coil,vibrating diaphragm, etc,but the voice coil of the earphone is mostly fixed ...