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- Blocking_oscillator abstract "A blocking oscillator is a simple configuration of discrete electronic components which can produce a free-running signal, requiring only a resistor, a transformer, and one amplifying element. The name is derived from the fact that the transistor (or tube) is cut-off or "blocked" for most of the duty-cycle, producing periodic pulses. The non-sinusoidal output is not suitable for use as a radio-frequency local oscillator, but it can serve as a timing generator, to power lights, LEDs, Elwire, or small neon indicators. The simple tones are also sufficient for applications such as alarms or a morse-code practice device. Some cameras use a blocking oscillator to strobe the flash prior to a shot to reduce the red-eye effect.When it comes to the components involved in this circuit, specific types of each component are needed to have it work to its full potential. The transformer is a vital component. For example, a pulse transformer creates rectangular pulses, which are characterized by fast rise and fall times with a flat top. There are a seemingly endless amount of combinations of voltages, transformers, capacitors, transistors and resistors that can be used to vary and model the circuit.Due to the circuit's simplicity, it forms the basis for many of the learning projects in commercial electronic kits. The secondary winding of the transformer can be fed to a speaker, a lamp, or the windings of a relay. Instead of a resistor, a potentiometer placed in parallel with the timing capacitor permits the frequency to be adjusted freely, but at low resistances the transistor can be overdriven, and possibly damaged. The output signal will jump in amplitude and be greatly distorted.".
- Blocking_oscillator thumbnail Blocking_oscillator.jpg?width=300.
- Blocking_oscillator wikiPageExternalLink RecentIssue.jsp?punumber=8147.
- Blocking_oscillator wikiPageExternalLink freeabs_all.jsp?arnumber=1082353.
- Blocking_oscillator wikiPageExternalLink elect37.htm.
- Blocking_oscillator wikiPageExternalLink ~jcalvert.
- Blocking_oscillator wikiPageID "3114727".
- Blocking_oscillator wikiPageRevisionID "597645241".
- Blocking_oscillator hasPhotoCollection Blocking_oscillator.
- Blocking_oscillator subject Category:Oscillators.
- Blocking_oscillator type Artifact100021939.
- Blocking_oscillator type Device103183080.
- Blocking_oscillator type ElectronicDevice103277771.
- Blocking_oscillator type Generator103434285.
- Blocking_oscillator type Instrumentality103575240.
- Blocking_oscillator type Object100002684.
- Blocking_oscillator type Oscillator103857430.
- Blocking_oscillator type Oscillators.
- Blocking_oscillator type PhysicalEntity100001930.
- Blocking_oscillator type Whole100003553.
- Blocking_oscillator comment "A blocking oscillator is a simple configuration of discrete electronic components which can produce a free-running signal, requiring only a resistor, a transformer, and one amplifying element. The name is derived from the fact that the transistor (or tube) is cut-off or "blocked" for most of the duty-cycle, producing periodic pulses.".
- Blocking_oscillator label "Blocking oscillator".
- Blocking_oscillator label "Sperrschwinger".
- Blocking_oscillator label "Блокинг-генератор".
- Blocking_oscillator sameAs Sperrschwinger.
- Blocking_oscillator sameAs Osilator_sumbatan.
- Blocking_oscillator sameAs m.08s9_1.
- Blocking_oscillator sameAs Q623704.
- Blocking_oscillator sameAs Q623704.
- Blocking_oscillator sameAs Blocking_oscillator.
- Blocking_oscillator wasDerivedFrom Blocking_oscillator?oldid=597645241.
- Blocking_oscillator depiction Blocking_oscillator.jpg.
- Blocking_oscillator isPrimaryTopicOf Blocking_oscillator.
