Single-time step converter

专利摘要:
A ringing converter of the type having an output voltage stabilizing circuit (ZD1, C2) connected on the primary side of a transformer (T1). The converter is further provided with a circuit for detecting the primary current, which is proportional to the load current on the secondary side of the transformer (T1). This enables detection of a change in the output voltage due to fluctuation in the load current on the secondary side, as detected by the detecting circuit. A signal indicative of the detected change is fed back to an oscillator circuit in order to stabilize the output voltage.
公开号:SU1205790A3
申请号:SU813348166
申请日:1981-10-23
公开日:1986-01-15
发明作者:Хаттори Масаюки
申请人:Фудзицу Фанук Лимитед (Фирма)；
IPC主号:

专利说明:

one
This invention relates to converters of direct current to direct current, primarily to a type of transducer, referred to as a shock.
The aim of the invention is to provide a stable output voltage.
The drawing shows a one-way converter.
As can be seen from the drawing, a differential amplifier made up of transistors. 1 and 2 and resistor 3 are added to a converter with an output voltage stabilization circuit. The current flowing in the primary winding 4 of the transformer 5 is approximately proportional to the current pro-. such through the secondary winding 6, the design is such that the change in the output voltage due to the change in the load, as well as the resistance of the secondary winding 6, is compensated on the primary side, thereby suppressing the fluctuation of the output voltage. The average emitter current transistor 7 can be detected using a resistor 8 and a capacitor 9, which are connected to the emitter, but this also expresses the average current of the primary winding 4 when the base current is neglected. In said differential amplifier made up of transistors and a 2-resistor 3, transistor 2 is open when the potential of its base exceeds the base potential of transistor 1, and as a result the base current from the transistor 7 is drawn off. which is disabled. A resistor 10 corresponding to the emitter resistance of the transistor 7 detects the emitter current (which is approximately equivalent to the current flowing through the primary winding 4), which increases in time when the transistor 7 opens, and the voltage generated by the resistor 10 flows to the input terminal (base of transistor 2) differential amplifier. If the bases of transistors 1 and 2 have the same potential, then transistor 7 makes the transition from
057902
conductive to non-conductive.
Since the voltage on the resistor 10 can be set to a negligible value and since the voltage on the resistor 8 is proportional to the output current lout, the expression for the voltage on the capacitor 11 can be written as follows:
ten

V,
12
R
17
to
i-ont
Where
and"
TO
RS.R
voltage on Zener diode 12;
coefficient of proportionality;
resistances of resistors 13 and 14.
Let the primary winding 4 and the secondary winding 6 have the same number of turns and have equivalent voltage drops. By selecting the appropriate parameters, it is possible to achieve that the output voltage
equal to the voltage at the Zener diode 12. The output voltage is constant regardless of the fluctuation of the load current.
Consequently, the invention is based on the fact that the load current on the secondary side of the transformer is proportional to the current on the primary side of the transformer in a shock converter having an output voltage stabilization circuit, and therefore the circuit in accordance with the invention is designed to detect the load current on the primary side which prevails on the secondary side to compensate for changes in the output voltage due to the fluctuation of the load current
this compensation is also carried out on the primary side. Thus, it is possible to obtain a bilized constant output voltage contrary to fluctuations in
load and voltage supply, and the results obtained are superior to those obtained in the known technical solutions.
Compiled by S. Chernysheva Editor M. Tsitkina Tehred T. Dubnnchak Proofreader E. Roshko
Order 8552/63 Circulation 645Subscription
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
Branch PPP Patent, Uzhgorod, st. Project, 4
5 W TOUT

权利要求:
Claims (1)
[1]
A one-turn converter containing a main transistor, the collector of which through the first primary winding of the transformer and the key connected in series with it is connected to the first input terminal, a divider with two resistors, one output of which is connected to the connection point of the first primary winding of the transformer and the key, the second output is connected to one the output of the second primary winding of the transformer, and the output of the divider is connected to the base of the main transistor, and the other output of the second primary winding of the transformer is connected the second input terminal, the stabilization unit, consisting of a zener diode, one electrode of which is connected through the first diode to one terminal of the second primary winding of the transformer, and through the first capacitor to the other terminal of the same winding, while the secondary transformer winding is connected to one terminal through the second diode. to the first output terminal and the first capacitor plate, the second plate of which is connected to the other terminal of the secondary winding and the second output terminal, which means that, in order to ensure a stable output -frequency voltage, a stabilization assembly introduced differential amplifier and two additional divisors, each of which is made on the two resistors, the differential Wuxi ~ <numerator consists of two transistors, _P emitters are combined and through ® introduced a further resistor connected to the point of the zener diode connection and the first diode, the collector of one transistor is connected to the connection point of the first primary winding and the key, and its base is connected to the midpoint of the first additional divider, the collector of another the anistor through the introduced additional diode is connected to the base of the main transistor, and its base is connected to the midpoint of the second additional divider, while the first additional divider | is connected between the emitter of the main ¹ transistor and the other electrode of the stabilizer, and the second additional divider is connected between the emitter of the main transistor and the other terminal of the second primary winding of the transformer.
SU,. „1205790

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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US4166213A|1977-07-08|1979-08-28|International Telephone And Telegraph Corporation|Single power supply multiple image intensifier apparatus and method with independently adjustable low light gain and high light saturation level|JPS59201675A|1983-04-25|1984-11-15|Ncr Co|Oscillating frequency stabilizing method for dc stabilized power source|

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DE3712796C2|1987-04-15|1998-04-09|Metrawatt Gmbh Gossen|Self-oscillating DC voltage converter working according to the flyback converter principle|

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EP0824781B1|1996-03-01|2001-09-05|Koninklijke Philips Electronics N.V.|Power-supply circuit|

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JP2015133860A|2014-01-15|2015-07-23|コーセル株式会社|Switching power supply apparatus|

法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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JP55148761A|JPS5775568A|1980-10-23|1980-10-23|Ringing converter|

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