SU813634A1 - Power supply source operating from the mains - Google Patents

Power supply source operating from the mains Download PDF

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Publication number
SU813634A1
SU813634A1 SU792715929A SU2715929A SU813634A1 SU 813634 A1 SU813634 A1 SU 813634A1 SU 792715929 A SU792715929 A SU 792715929A SU 2715929 A SU2715929 A SU 2715929A SU 813634 A1 SU813634 A1 SU 813634A1
Authority
SU
USSR - Soviet Union
Prior art keywords
transistor
mains
power supply
supply source
source operating
Prior art date
Application number
SU792715929A
Other languages
Russian (ru)
Inventor
Алексей Андреевич Бас
Original Assignee
Рязанский Радиотехническийинститут
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Рязанский Радиотехническийинститут filed Critical Рязанский Радиотехническийинститут
Priority to SU792715929A priority Critical patent/SU813634A1/en
Application granted granted Critical
Publication of SU813634A1 publication Critical patent/SU813634A1/en

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Description

(54) NETWORK POWER SOURCE

A limiting resistor is included in the filter, one output of which is connected to the emitter, and the other through an eisistor with the converter transistor base, to the input of which is connected through another resistor secondary winding of the control unit transformer, which is connected to the output of the source through a a diode and through another diode - with an additional JQ converter transformer winding.

The drawing shows a schematic diagram of a network power source .i

The power source contains a power supply rectifier 1 connected to a capacitor 2 of a capacitive filter and a single-ended transistor converter that includes a transistor 3, a transformer 4, a rectifying diode 5 and a capacitor 6 in parallel with which the load 7 is connected and through diodes 8 and 9 the capacitor 10 and the control unit 11 with the output transformer 12, the secondary 25 to the winding of which is connected to the transistor control transition, also shunted by resistors 13 and 14.

The device works as follows.

When turned on, the mains voltage is applied to a series-connected capacitor 2 and a resistor 13, which is fundamentally necessary for limiting the starting current (the latter should not exceed the maximum allowable value for the diodes of the rectifier 1). Consequently, the network voltage applied to the 40 resistor 13 through the resistor 14 forms the base current of the transistor 3, and a voltage appears on the secondary side of the transformer 4, charging through the diode 9 of the capacitor 10,. The capacitance of the latter is small, the charge occurs quickly enough, and the control unit 11 begins to generate pulses of the control voltage of the transistor 3. Thus, This starts the converter. The fill factor of the control voltage is limited by the magnitude of the allowable voltage at the collector of transistor 3. After the voltage at the output of the device reaches the nominal value, the control device switches to power from the output through diode 8. The secondary transformer is wired to the transformer. 4 contains several Q

the coils of the thin wire, as it works only at start-up and does not increase the size of the transformer. The voltage on the resistor 13 in the steady state is insignificant, since the capacitor 2 is charged and does not affect the operation of the transistor 3.

The proposed mains power supply is expediently used for supplying a stabilized load voltage with a power of 10 ... 30 W, while simplifying and improving the mass-dimensional parameters is achieved {the power part contains one transistor, and the startup device is a resistor, two diodes and additional winding) and enhanced functionality (ability to work at idle load).

Claims (3)

1. Moin V.I. and Laptev N.N. Stabilized transistor converters. M., Energie, 1972, p. 183, fig. 6-6, w.
2.Konev Yu.I. and Meleshin V.I. Converters of alternating voltage to stabilized constant Electronic equipment in automatics. Issue 8, M., Soviet Radio, 1976.
3. Korneev V.F. Single-ended transistor stabilized voltage converter industrial network. - Electronic technology in automation. Issue 9. M., Soviet Radio, 1977.
SU792715929A 1979-01-18 1979-01-18 Power supply source operating from the mains SU813634A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU792715929A SU813634A1 (en) 1979-01-18 1979-01-18 Power supply source operating from the mains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU792715929A SU813634A1 (en) 1979-01-18 1979-01-18 Power supply source operating from the mains

Publications (1)

Publication Number Publication Date
SU813634A1 true SU813634A1 (en) 1981-03-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU792715929A SU813634A1 (en) 1979-01-18 1979-01-18 Power supply source operating from the mains

Country Status (1)

Country Link
SU (1) SU813634A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001400A1 (en) * 1983-09-19 1985-03-28 Minitronics Pty. Limited Minimization of harmonic contents for mains operated solid state inverters driving gas discharge lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001400A1 (en) * 1983-09-19 1985-03-28 Minitronics Pty. Limited Minimization of harmonic contents for mains operated solid state inverters driving gas discharge lamps

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