Electronics Glossary
... Diodes will let electricity flow through them in one direction only. They are used to protect electric circuits and as part of logic gates. There are four commonly used types of diode: ...
... Diodes will let electricity flow through them in one direction only. They are used to protect electric circuits and as part of logic gates. There are four commonly used types of diode: ...
Electronic glossary
... Diodes will let electricity flow through them in one direction only. They are used to protect electric circuits and as part of logic gates. There are four commonly used types of diode: ...
... Diodes will let electricity flow through them in one direction only. They are used to protect electric circuits and as part of logic gates. There are four commonly used types of diode: ...
Automatic Street Light
... and will form a short if connected between + and -, a current limiting resistor is used to prevent that very thing. LEDs may or may not be drawn with the circle surrounding them. e) Variable resistance: (Potentiometer) Resistors are one of the most common electronic components. A resistor is a devic ...
... and will form a short if connected between + and -, a current limiting resistor is used to prevent that very thing. LEDs may or may not be drawn with the circle surrounding them. e) Variable resistance: (Potentiometer) Resistors are one of the most common electronic components. A resistor is a devic ...
ppt - Intro to Basic Electronics
... An LED will light up when enough voltage is supplied but can also burn out if too much is allowed to pass through. The resistor will limit the voltage to prevent damage. ...
... An LED will light up when enough voltage is supplied but can also burn out if too much is allowed to pass through. The resistor will limit the voltage to prevent damage. ...
Wiring a LED
... replaced with LEDs by late 2005; the automotive industry has sworn to banish all incandescent bulbs from cars by the end of the decade, replacing them with LEDs - even in headlights. Most of the large video screens seen at outdoor events use many thousands of LEDs to produce video pictures. Very soo ...
... replaced with LEDs by late 2005; the automotive industry has sworn to banish all incandescent bulbs from cars by the end of the decade, replacing them with LEDs - even in headlights. Most of the large video screens seen at outdoor events use many thousands of LEDs to produce video pictures. Very soo ...
Light Emitting Diodes IV Characteristics.
... a power supply it should be Current Limited using a series resistor to protect it from excessive current flow. From the table above we can see that each LED has its own forward voltage drop across the PN-junction and this parameter which is determined by the semiconductor material used is the forwar ...
... a power supply it should be Current Limited using a series resistor to protect it from excessive current flow. From the table above we can see that each LED has its own forward voltage drop across the PN-junction and this parameter which is determined by the semiconductor material used is the forwar ...
smart street light system for power saving using pic
... The circuit uses standard power supply comprising of a step-down transformer from 230v to 12v and 4 diodes forming a Bridge Rectifier that delivers pulsating dc which is then filtered by an electrolytic capacitor of about 470microf to 100microF. The filtered dc being un regulated IC LM7805 is used t ...
... The circuit uses standard power supply comprising of a step-down transformer from 230v to 12v and 4 diodes forming a Bridge Rectifier that delivers pulsating dc which is then filtered by an electrolytic capacitor of about 470microf to 100microF. The filtered dc being un regulated IC LM7805 is used t ...
Light Emitting Diodes
... • It is made up of many small particle-like packets that have energy and momentum but no mass. These particles, called photons, are the most basic units of light. • For an electron to jump from a lower orbital to a higher orbital, something has to boost its energy level. Conversely, an electron rele ...
... • It is made up of many small particle-like packets that have energy and momentum but no mass. These particles, called photons, are the most basic units of light. • For an electron to jump from a lower orbital to a higher orbital, something has to boost its energy level. Conversely, an electron rele ...
Reaction Timer
... of ±0·01 seconds. The time is indicated by a series of seven leds showing the output of a binary counter (4060). The two D type flip-flops are in a 4013. The led shown on the circuit diagram is the “stimulus”. Switch S1 starts the timer and illuminates the stimulus led. Switch S2 stops the timer. ...
... of ±0·01 seconds. The time is indicated by a series of seven leds showing the output of a binary counter (4060). The two D type flip-flops are in a 4013. The led shown on the circuit diagram is the “stimulus”. Switch S1 starts the timer and illuminates the stimulus led. Switch S2 stops the timer. ...
Precaution for Use - Sensor Electronic Technology, Inc
... light, which is harmful to skin and eyes. UV light is hazardous to skin and may cause cancer. Avoid exposure to UV light when LED is operational. Precautions must be taken to avoid looking directly at the UV light without the use of UV light protective glasses. Do not look directly at the front of t ...
... light, which is harmful to skin and eyes. UV light is hazardous to skin and may cause cancer. Avoid exposure to UV light when LED is operational. Precautions must be taken to avoid looking directly at the UV light without the use of UV light protective glasses. Do not look directly at the front of t ...
Slide 1
... Digital Inputs and Outputs • The next two lectures will focus on the digital pins – the analog pins will come later • Before using the digital pins we need to set them up as either inputs or outputs • This is called setting the direction of the pins (input direction or output direction) • To do thi ...
... Digital Inputs and Outputs • The next two lectures will focus on the digital pins – the analog pins will come later • Before using the digital pins we need to set them up as either inputs or outputs • This is called setting the direction of the pins (input direction or output direction) • To do thi ...
HT12D PIN DESCRIPTION
... RF receiver output. A0 – A7: This is the address input. Status of these pins should match with status of address pin in HT12E(in transmitter) for receiving data. These pins can be connected to VSS or left open. D8 – D11: This is the data output pins. Status of these pins can be VSS or VDD depending ...
... RF receiver output. A0 – A7: This is the address input. Status of these pins should match with status of address pin in HT12E(in transmitter) for receiving data. These pins can be connected to VSS or left open. D8 – D11: This is the data output pins. Status of these pins can be VSS or VDD depending ...
Basic Circuits - Harris County Public Library
... Many electrical and electronic devices exist to convert electrical energy into some other form of energy often light, heat, sound or motion. An electrical circuit can be considered a means to conduct and modify the flow of electrical charges from a source (such as a battery) to the load (such as a l ...
... Many electrical and electronic devices exist to convert electrical energy into some other form of energy often light, heat, sound or motion. An electrical circuit can be considered a means to conduct and modify the flow of electrical charges from a source (such as a battery) to the load (such as a l ...
Charlieplexing
Charlieplexing is a technique for driving a multiplexed display in which relatively few I/O pins on a microcontroller are used to drive an array of LEDs. The method uses the tri-state logic capabilities of microcontrollers in order to gain efficiency over traditional multiplexing. Although it is more efficient in its use of I/O, there are issues that cause it to be more complicated to design and render it impractical for larger displays. These issues include duty cycle, current requirements and the forward voltages of the LEDs.