ES8304386A1 - Switching circuit - Google Patents
Switching circuitInfo
- Publication number
- ES8304386A1 ES8304386A1 ES510791A ES510791A ES8304386A1 ES 8304386 A1 ES8304386 A1 ES 8304386A1 ES 510791 A ES510791 A ES 510791A ES 510791 A ES510791 A ES 510791A ES 8304386 A1 ES8304386 A1 ES 8304386A1
- Authority
- ES
- Spain
- Prior art keywords
- switching
- diode
- speed
- transistor
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 abstract 4
- 230000003071 parasitic effect Effects 0.000 abstract 3
- 102220580238 Non-receptor tyrosine-protein kinase TYK2_Q13A_mutation Human genes 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
- H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
- H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
- H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
- H03K3/289—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable of the master-slave type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
- Logic Circuits (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
A switching circuit includes a speed-up diode or transistor (Q3A Q13A) connected in diode-like fashion between a collector load resistor (12 24) of a switching transistor means (Q5/Q9: Q15/Q20) and a supply voltage terminal (41) for increasing the switching speed. The diode provides a turn-on delay, permitting the switching transistor to more rapidly discharge a parasitic collector capacitor (CA). The diode also provides a turn-off delay to more rapidly charge the parasitic capacitor (CA) when the switching transistor means switches to a nonconductive state. Another load resistor (10) may be connected in series between the collector of the speed-up transistor (Q3A) and the supply voltage terminal (41) to develop the output voltage of the circuit. In this case, the diode-connected transistor (Q3A) serves to buffer the switching transistor means (Q5/Q9) from parasitic capacitances of the output circuits and thereby further increase the switching speed. The switching circuit can be incorporated with a flip-flop circuit to increase its switching speed, which is of importance when the flip-flop is used for instance as a frequency divider in a phase locked loop tuning circuit e.g., for a radio or television receiver.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24989681A | 1981-04-01 | 1981-04-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8304386A1 true ES8304386A1 (en) | 1983-02-16 |
ES510791A0 ES510791A0 (en) | 1983-02-16 |
Family
ID=22945471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES510791A Granted ES510791A0 (en) | 1981-04-01 | 1982-03-25 | "IMPROVEMENTS INTRODUCED IN A SWITCHING CIRCUIT". |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS57176839A (en) |
AU (1) | AU8192082A (en) |
BE (1) | BE892605A (en) |
DE (1) | DE3212221A1 (en) |
ES (1) | ES510791A0 (en) |
FI (1) | FI821057L (en) |
FR (1) | FR2503486A1 (en) |
GB (1) | GB2095944A (en) |
IT (1) | IT8220523A0 (en) |
PT (1) | PT74627B (en) |
SE (1) | SE8201902L (en) |
ZA (1) | ZA822224B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62202613A (en) * | 1986-02-28 | 1987-09-07 | Nec Corp | Comparator |
JPS62222712A (en) * | 1986-03-25 | 1987-09-30 | Toshiba Corp | Flip-flop circuit |
JPS6326026A (en) * | 1986-07-17 | 1988-02-03 | Nec Corp | Emitter coupling type logic circuit |
JPH0313116A (en) * | 1989-06-12 | 1991-01-22 | Nec Corp | Flip-flop circuit |
-
1982
- 1982-03-22 PT PT74627A patent/PT74627B/en unknown
- 1982-03-23 BE BE0/207646A patent/BE892605A/en not_active IP Right Cessation
- 1982-03-24 GB GB8208563A patent/GB2095944A/en not_active Withdrawn
- 1982-03-25 SE SE8201902A patent/SE8201902L/en not_active Application Discontinuation
- 1982-03-25 AU AU81920/82A patent/AU8192082A/en not_active Abandoned
- 1982-03-25 FI FI821057A patent/FI821057L/en not_active Application Discontinuation
- 1982-03-25 ES ES510791A patent/ES510791A0/en active Granted
- 1982-03-30 JP JP57053640A patent/JPS57176839A/en active Pending
- 1982-03-31 IT IT8220523A patent/IT8220523A0/en unknown
- 1982-03-31 FR FR8205583A patent/FR2503486A1/en not_active Withdrawn
- 1982-04-01 DE DE19823212221 patent/DE3212221A1/en not_active Withdrawn
-
1983
- 1983-03-31 ZA ZA822224A patent/ZA822224B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU8192082A (en) | 1982-10-07 |
FI821057L (en) | 1982-10-02 |
PT74627B (en) | 1983-08-22 |
FI821057A0 (en) | 1982-03-25 |
JPS57176839A (en) | 1982-10-30 |
FR2503486A1 (en) | 1982-10-08 |
PT74627A (en) | 1982-04-01 |
GB2095944A (en) | 1982-10-06 |
DE3212221A1 (en) | 1982-12-09 |
SE8201902L (en) | 1982-10-02 |
BE892605A (en) | 1982-07-16 |
ES510791A0 (en) | 1983-02-16 |
ZA822224B (en) | 1983-04-27 |
IT8220523A0 (en) | 1982-03-31 |
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