Electric Bells and Buzzers - Revision history

DT Online at 11:28, 28 January 2018

2018-01-28T11:28:10Z

← Older revision		Revision as of 11:28, 28 January 2018
Line 49:		Line 49:

	[[File:555PiezoDriver.png\|200px\|right]]		[[File:555PiezoDriver.png\|200px\|right]]
	When used in [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] applications they too require a drive circuit to provide an oscillating current. This can be built into the device but is often provided separately. A suitable ~~drive ciircuit~~ for both electro-mechanical and Piezo transducers is to use a 555 Timer configured in [https://en.wikipedia.org/wiki/555_timer_IC#Astable '''Astable'''] mode as shown.		When used in [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] applications they too require a drive circuit to provide an oscillating current. This can be built into the device but is often provided separately. A suitable [https://en.wikipedia.org/wiki/Electronic_oscillator '''Oscillator'''] circuit for both electro-mechanical and Piezo transducers is to use a 555 Timer configured in [https://en.wikipedia.org/wiki/555_timer_IC#Astable '''Astable'''] mode as shown.

DT Online at 11:18, 28 January 2018

2018-01-28T11:18:19Z

← Older revision		Revision as of 11:18, 28 January 2018
Line 20:		Line 20:
	=====Buzzers=====		=====Buzzers=====

	At their simplest, electro-mechanical buzzers [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] can be similar but without the hammer and bell and the 'buzzing' created by the vibrating relay contacts amplified by being attached to a sounding board of some form.		At their simplest, electro-mechanical buzzers [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] can be similar but without the hammer and bell and the 'buzzing' created by the vibrating relay contacts - amplified by being attached to a sounding board of some form.
	<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>		<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>

Line 49:		Line 49:

	[[File:555PiezoDriver.png\|200px\|right]]		[[File:555PiezoDriver.png\|200px\|right]]
	When used in [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] applications they too require a drive circuit to provide an oscillating current ~~which~~ can be built into the device but is often provided separately. ~~One way of achieving this~~ for both electro-mechanical and Piezo transducers is ~~with~~ a 555 Timer configured in [https://en.wikipedia.org/wiki/555_timer_IC#Astable '''Astable'''] mode as shown.		When used in [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] applications they too require a drive circuit to provide an oscillating current. This can be built into the device but is often provided separately. A suitable drive ciircuit for both electro-mechanical and Piezo transducers is to use a 555 Timer configured in [https://en.wikipedia.org/wiki/555_timer_IC#Astable '''Astable'''] mode as shown.

DT Online at 11:10, 28 January 2018

2018-01-28T11:10:31Z

← Older revision		Revision as of 11:10, 28 January 2018
Line 52:		Line 52:


	This forms the basis of the [https://en.wikipedia.org/wiki/Piezoelectric_speaker '''Piezoelectric Buzzers'''] or speakers which are commonly used in electronic devices and are sometimes used as [https://en.wikipedia.org/wiki/Tweeter '''Tweeters'''] in less-expensive speaker systems. They can operate over a wide voltage ''(e.g. 3 to 250V)'', a less than 30mA ~~low~~ current consumption and produce a higher rated frequency.		This forms the basis of the [https://en.wikipedia.org/wiki/Piezoelectric_speaker '''Piezoelectric Buzzers'''] or speakers which are commonly used in electronic devices and are sometimes used as [https://en.wikipedia.org/wiki/Tweeter '''Tweeters'''] in less-expensive speaker systems. They can operate over a wide voltage ''(e.g. 3 to 250V)'', less than 30mA current consumption and produce a higher rated frequency.

DT Online: Added Piezo driver

2018-01-27T16:39:31Z

Added Piezo driver

← Older revision		Revision as of 16:39, 27 January 2018
Line 45:		Line 45:
	=====Piezo Transducer=====		=====Piezo Transducer=====

	When an electric current is passed through some ceramic or crystal materials ''(e.g. quartz)'' the '''[[Crystalline Structures\|Crystalline Structure]]''' expands slighty. If a piece of such a [https://en.wikipedia.org/wiki/Piezoelectricity '''Piezoelectric Electric'''] material is '''[[Laminating\|Laminated]]''' to a thin metal plate, or ~~diaphram~~, its expansion will cause the ~~diaphram~~ to distort ~~slighty~~. When excited by an oscillating current, it will vibrate the ~~diaphram~~ and a high frequency sound will be emitted - see '''[[Piezo Transducer]]'''.		When an electric current is passed through some ceramic or crystal materials ''(e.g. quartz)'' the '''[[Crystalline Structures\|Crystalline Structure]]''' expands slighty. If a piece of such a [https://en.wikipedia.org/wiki/Piezoelectricity '''Piezoelectric Electric'''] material is '''[[Laminating\|Laminated]]''' to a thin metal plate, or diaphragm, its expansion will cause the diaphragm to distort slightly. When excited by an oscillating current, it will vibrate the diaphragm and a high frequency sound will be emitted - see '''[[Piezo Transducer]]'''.


	When used in [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] applications they too require a drive circuit to provide an oscillating current which can be built into the device but is often provided separately.		[[File:555PiezoDriver.png\|200px\|right]]
			When used in [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] applications they too require a drive circuit to provide an oscillating current which can be built into the device but is often provided separately. One way of achieving this for both electro-mechanical and Piezo transducers is with a 555 Timer configured in [https://en.wikipedia.org/wiki/555_timer_IC#Astable '''Astable'''] mode as shown.

DT Online at 13:29, 27 January 2018

2018-01-27T13:29:39Z

← Older revision		Revision as of 13:29, 27 January 2018
Line 14:		Line 14:


			[[File:OldBuzzer.png\|200px\|right\|link=https://archive.org/stream/stnicholasserial322dodg/stnicholasserial322dodg#page/n688/mode/1up]]
	Bells normally work on low voltage typically 6 volts. Bells create a distinct ringing sound and can be used as outputs for alarm circuits.		Bells normally work on low voltage typically 6 volts. Bells create a distinct ringing sound and can be used as outputs for alarm circuits.
	~~[[File:OldBuzzer.png\|200px\|right\|link=https://archive.org/stream/stnicholasserial322dodg/stnicholasserial322dodg#page/n688/mode/1up]]~~


Line 21:		Line 21:

	At their simplest, electro-mechanical buzzers [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] can be similar but without the hammer and bell and the 'buzzing' created by the vibrating relay contacts amplified by being attached to a sounding board of some form.		At their simplest, electro-mechanical buzzers [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] can be similar but without the hammer and bell and the 'buzzing' created by the vibrating relay contacts amplified by being attached to a sounding board of some form.
			<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>


	<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>
	Most commercially available [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] however, cause an electro-magnet to vibrate a metal disc or plate by supplying it with an oscillating current. [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] require a drive circuit to provide this, which is usually built into the device.		Most commercially available [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] however, cause an electro-magnet to vibrate a metal disc or plate by supplying it with an oscillating current. [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] require a drive circuit to provide this, which is usually built into the device.

DT Online at 13:06, 27 January 2018

2018-01-27T13:06:31Z

← Older revision		Revision as of 13:06, 27 January 2018
Line 15:		Line 15:

	Bells normally work on low voltage typically 6 volts. Bells create a distinct ringing sound and can be used as outputs for alarm circuits.		Bells normally work on low voltage typically 6 volts. Bells create a distinct ringing sound and can be used as outputs for alarm circuits.
			[[File:OldBuzzer.png\|200px\|right\|link=https://archive.org/stream/stnicholasserial322dodg/stnicholasserial322dodg#page/n688/mode/1up]]


	=====Buzzers=====		=====Buzzers=====

			At their simplest, electro-mechanical buzzers [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] can be similar but without the hammer and bell and the 'buzzing' created by the vibrating relay contacts amplified by being attached to a sounding board of some form.


	<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>		<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>
	Electro-mechanical buzzers [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] can be similar but without the hammer and bell. At their simplest, the 'buzzing' can be created by the vibrating relay contacts and amplified by being attached to a sounding board of some form. Most commercially available [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] however, cause an electro-magnet to vibrate a metal disc or plate by ~~supplyng~~ it with an oscillating current. [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] require a drive circuit to provide this, which is usually built into the device.		Most commercially available [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] however, cause an electro-magnet to vibrate a metal disc or plate by supplying it with an oscillating current. [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] require a drive circuit to provide this, which is usually built into the device.


Line 41:		Line 45:
	=====Piezo Transducer=====		=====Piezo Transducer=====

	When an electric current is passed through some ceramic or crystal materials ''(e.g. quartz)'' the '''[[Crystalline Structures\|Crystalline Structure]]''' expands slighty. If a piece of such a [https://en.wikipedia.org/wiki/Piezoelectricity '''Piezoelectric Electric'''] material is '''[[Laminating\|Laminated]]''' to a thin metal plate, or diaphram, its expansion will cause the diaphram to distort slighty. When excited by an ~~alternating~~ current, it will vibrate the diaphram and a high frequency sound will be emitted - see '''[[Piezo Transducer]]'''.		When an electric current is passed through some ceramic or crystal materials ''(e.g. quartz)'' the '''[[Crystalline Structures\|Crystalline Structure]]''' expands slighty. If a piece of such a [https://en.wikipedia.org/wiki/Piezoelectricity '''Piezoelectric Electric'''] material is '''[[Laminating\|Laminated]]''' to a thin metal plate, or diaphram, its expansion will cause the diaphram to distort slighty. When excited by an oscillating current, it will vibrate the diaphram and a high frequency sound will be emitted - see '''[[Piezo Transducer]]'''.


			When used in [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] applications they too require a drive circuit to provide an oscillating current which can be built into the device but is often provided separately.

	This forms the basis of the [https://en.wikipedia.org/wiki/Piezoelectric_speaker '''Piezoelectric Buzzers'''] or speakers which are commonly used in electronic devices and are sometimes used as [https://en.wikipedia.org/wiki/Tweeter '''Tweeters'''] in less-expensive speaker systems.

			This forms the basis of the [https://en.wikipedia.org/wiki/Piezoelectric_speaker '''Piezoelectric Buzzers'''] or speakers which are commonly used in electronic devices and are sometimes used as [https://en.wikipedia.org/wiki/Tweeter '''Tweeters'''] in less-expensive speaker systems. They can operate over a wide voltage ''(e.g. 3 to 250V)'', a less than 30mA low current consumption and produce a higher rated frequency.


	<div style="clear: both;"></div>		<div style="clear: both;"></div>

DT Online at 11:32, 27 January 2018

2018-01-27T11:32:02Z

← Older revision		Revision as of 11:32, 27 January 2018
Line 14:		Line 14:


	Bells normally work on low voltage typically 6 volts. Bells ~~are~~ used as outputs for alarm circuits.		Bells normally work on low voltage typically 6 volts. Bells create a distinct ringing sound and can be used as outputs for alarm circuits.


Line 20:		Line 20:

	<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>		<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>
	[http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] ~~are usually of~~ the ~~single tone variety~~ and ~~are normally rated between 6~~ and ~~24 volts~~.		Electro-mechanical buzzers [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] can be similar but without the hammer and bell. At their simplest, the 'buzzing' can be created by the vibrating relay contacts and amplified by being attached to a sounding board of some form. Most commercially available [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] however, cause an electro-magnet to vibrate a metal disc or plate by supplyng it with an oscillating current. [https://en.wikipedia.org/wiki/Direct_current '''Direct Current (D.C.)'''] [http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] require a drive circuit to provide this, which is usually built into the device.


	They are suitable for alarm circuits, test equipment, timing and control.		Buzzers are usually of the single tone variety in the lower frequency ranges and are normally rated between 6 and 24 volts. They are suitable for alarm circuits, test equipment, timing and control.


Line 41:		Line 41:
	=====Piezo Transducer=====		=====Piezo Transducer=====

	When an electric current is passed through some ceramic or crystal materials ''(e.g. quartz)'' the '''[[Crystalline Structures\|Crystalline Structure]]''' expands slighty. If a piece of such a [https://en.wikipedia.org/wiki/Piezoelectricity '''Piezoelectric Electric'''] material is '''[[Laminated]]''' to a thin metal plate, or diaphram, its expansion will cause the diaphram to distort slighty. When excited by an alternating current, it will vibrate the diaphram and a high frequency sound will be emitted - see '''[[Piezo Transducer]]'''.		When an electric current is passed through some ceramic or crystal materials ''(e.g. quartz)'' the '''[[Crystalline Structures\|Crystalline Structure]]''' expands slighty. If a piece of such a [https://en.wikipedia.org/wiki/Piezoelectricity '''Piezoelectric Electric'''] material is '''[[Laminating\|Laminated]]''' to a thin metal plate, or diaphram, its expansion will cause the diaphram to distort slighty. When excited by an alternating current, it will vibrate the diaphram and a high frequency sound will be emitted - see '''[[Piezo Transducer]]'''.

DT Online: Added Amazon Link

2017-11-13T09:24:36Z

Added Amazon Link

← Older revision		Revision as of 09:24, 13 November 2017
Line 1:		Line 1:
	~~[[File:~~ElectricDoorBell.png\|300px~~\|right]]~~		<div class="floatright"><dtamazon type="search" search="Electric Bell"><img alt="ElectricDoorBell.png" src="/images/thumb/1/1f/ElectricDoorBell.png/300px-ElectricDoorBell.png" width="300" height="214" srcset="/images/1/1f/ElectricDoorBell.png 1.5x, /images/1/1f/ElectricDoorBell.png 2x" /></a></dtamazon></div>
	__TOC__		__TOC__

Line 19:		Line 19:
	=====Buzzers=====		=====Buzzers=====

	~~[[File:~~Buzzer2.png\|200px~~\|right]]~~		<div class="floatright"><dtamazon type="search" search="pcb mount Buzzer"><img alt="Buzzer2.png" src="/images/thumb/4/41/Buzzer2.png/200px-Buzzer2.png" width="200" height="117" srcset="/images/thumb/4/41/Buzzer2.png/300px-Buzzer2.png 1.5x, /images/4/41/Buzzer2.png 2x" /></a></dtamazon></div>
	[http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] are usually of the single tone variety and are normally rated between 6 and 24 volts.		[http://en.wikipedia.org/wiki/Buzzer '''Buzzers'''] are usually of the single tone variety and are normally rated between 6 and 24 volts.

DT Online at 08:09, 18 August 2017

2017-08-18T08:09:23Z

← Older revision		Revision as of 08:09, 18 August 2017
Line 36:		Line 36:

	The purpose of the '''IN4001 [[Diode]]''' shown is to restrict any [https://en.wikipedia.org/wiki/Counter-electromotive_force '''Back EMF'''] resulting from the Transistor being used to switch an inductive device ''(e.g. '''[[Electric Motor]]''', '''[[Solenoid]]''' or '''[[Relays\|Relay]]''').		The purpose of the '''IN4001 [[Diode]]''' shown is to restrict any [https://en.wikipedia.org/wiki/Counter-electromotive_force '''Back EMF'''] resulting from the Transistor being used to switch an inductive device ''(e.g. '''[[Electric Motor]]''', '''[[Solenoid]]''' or '''[[Relays\|Relay]]''').


			[[File:PiezoTransducer.jpg\|200px\|right]]
			=====Piezo Transducer=====

			When an electric current is passed through some ceramic or crystal materials ''(e.g. quartz)'' the '''[[Crystalline Structures\|Crystalline Structure]]''' expands slighty. If a piece of such a [https://en.wikipedia.org/wiki/Piezoelectricity '''Piezoelectric Electric'''] material is '''[[Laminated]]''' to a thin metal plate, or diaphram, its expansion will cause the diaphram to distort slighty. When excited by an alternating current, it will vibrate the diaphram and a high frequency sound will be emitted - see '''[[Piezo Transducer]]'''.


			This forms the basis of the [https://en.wikipedia.org/wiki/Piezoelectric_speaker '''Piezoelectric Buzzers'''] or speakers which are commonly used in electronic devices and are sometimes used as [https://en.wikipedia.org/wiki/Tweeter '''Tweeters'''] in less-expensive speaker systems.

DT Online at 18:40, 2 November 2016

2016-11-02T18:40:30Z

← Older revision		Revision as of 18:40, 2 November 2016
Line 30:		Line 30:

	[[File:BuzzerCircuit.png\|200px\|right]]		[[File:BuzzerCircuit.png\|200px\|right]]
	=====Bells and Buzzers in Circuit=====		=====Bells and Buzzers in a Transistor Circuit=====

	When a voltage is applied to the terminals of the bell or buzzer, they emit sounds suitable for alarm circuits and warning applications. To ensure maximum sound output, the bell or buzzer should be firmly mounted.		When a voltage is applied to the terminals of the bell or buzzer, they emit sounds suitable for alarm circuits and warning applications. To ensure maximum sound output, the bell or buzzer should be firmly mounted.