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Adjustable multipurpose power source

A technology of voltage regulating circuit and AC power supply, applied in the field of power supply, can solve the problems of low output power of DC power supply, easy to generate high voltage, bad output waveform, etc., and achieve the effect of continuously adjustable input and output voltage, good waveform and superior performance

Inactive Publication Date: 2008-12-03
章祖文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the power supply is mostly single-purpose power supply, which is inconvenient in places where multiple power supplies are required
Moreover, the AC power supply adopts thyristor voltage regulation, the output waveform is not good, the high voltage is easy to be generated on the frequency conversion power switch tube, the control circuit is complicated, and the output power of the DC power supply is small.

Method used

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  • Adjustable multipurpose power source
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  • Adjustable multipurpose power source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention consists of a capacitor voltage regulating circuit, a thyristor voltage regulating circuit, a triode voltage regulating circuit, an inverting switch signal amplifying circuit, an inverting switching circuit, a variable frequency transformer load circuit, an adaptive filter circuit, and a step-down adaptive voltage regulating circuit. , DC voltage and current synthesis circuit, DC output voltage and current sampling circuit, sampling signal amplification circuit and amplified sampling signal control circuit, inverting switch signal generation circuit, rectification and filtering circuit, alarm circuit and auxiliary power supply circuit.

[0019] The capacitor voltage regulating circuit is composed of the first capacitor voltage regulating circuit and the second capacitor voltage regulating circuit, wherein: the first capacitor voltage regulating circuit is composed of the first resistor R1, the second resistor R2, the first polarity capacitor C1a, and the sec...

Embodiment 2

[0039] The circuit composition of embodiment 2 is basically the same as embodiment 1, the difference is:

[0040] The triode voltage regulating circuit consists of the 17th composite transistor GTR17, the 18th composite transistor GTR18, the 19th to the 21st transistors BG19--BG21, the 10th adjustable resistor W10, the 65th resistor R65, the 66th resistor R66, the 77th to the 89th Composed of diodes D77-D89, the anode of the 78th diode D78, the cathode of the 82nd diode D82, the common terminal of the anode of the 88th diode D88 is connected to the A terminal of the first switch K1, the cathode of the 78th diode D78 is connected to the cathode of the 81st diode D81, the cathode of the 85th diode D88 The anode of diode D85, the common terminal of the collector of the 18th composite transistor GTR18, the cathode of the 79th diode D79 connects to the cathode of the 80th diode D80, the anode of the 84th diode D84, the common terminal of the collector of the 17th composite transisto...

Embodiment 3

[0042] The circuit composition of embodiment 3 is basically the same as embodiment 1, the difference is:

[0043] The inverting switch signal amplifying circuit is composed of a first inverting switching signal amplifying circuit, a second inverting switching signal amplifying circuit, a third inverting switching signal amplifying circuit and a fourth inverting switching signal amplifying circuit, wherein:

[0044] The first inverting switch signal amplifying circuit is composed of the 15th field effect transistor NMOS15, the 22nd transistor BG22, the 23rd transistor BG23, the 67th resistor R67, the 68th resistor R68, the 11th adjustable resistor W11, the 9th capacitor C9b, the 90th capacitor Composed of diode D90 and the 22nd zener diode ZW22, the gate of the 15th FET NMOS15, the common terminal of the 22nd zener diode ZW22 cathode are connected to the common end of the 8th resistor R8 and the 9th resistor R9, the 15th FET The source of NMOS15, the anode of the 22nd zener dio...

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PUM

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Abstract

The invention discloses an adjustable multi-functional power supply, comprising a capacitor voltage-adjusting circuit, an auxiliary power circuit, a reverse-phase switch signal generation circuit, a rectifier filter circuit and an alarming circuit. The adjustable multi-functional power supply is characterized in that the power supply also comprises a controllable silicon voltage-adjusting circuit, a triode voltage-adjusting circuit, a reverse-phase switch signal amplification circuit, a reverse-phase switch circuit, a frequency conversion transformer load circuit, a self-adaptive filter circuit, a self-adaptive voltage-adjusting circuit by sequentially reducing the voltage, a DC voltage current synthesis circuit, a DC output voltage current sampling circuit, a sampling signal amplification circuit and an amplification sampling signal control circuit. The adjustable multifunctional power supply also comprises a DC over-voltage over-current alarming circuit. The adjustable multi-functional power supply designs the adjustable AC power supply to the parallel circuit of the capacitor voltage-adjusting circuit, the controllable silicon voltage-adjusting circuit and the triode voltage-adjusting circuit, leads the non-sinusoidal characteristic of the controllable silicon voltage-adjusting circuit to be compensated and has the characteristic of large power simultaneously. The adjustable multi-functional power supply has the advantages that the input voltage and the output voltage are continuous and adjustable, the power is large and the waveform is excellent.

Description

technical field [0001] The invention relates to a power supply, in particular to an adjustable multipurpose power supply composed of an adjustable AC power supply, an adjustable frequency conversion power supply and an adjustable DC voltage and current source. Background technique [0002] At present, the power supply is mostly a single-purpose power supply, which is inconvenient in places where multiple power supplies are required. Moreover, the AC power supply adopts thyristor voltage regulation, the output waveform is not good, high voltage is easily generated on the frequency conversion power switch tube, the control circuit is complicated, and the output power of the DC power supply is small. Contents of the invention [0003] The object of the present invention is to provide an adjustable multi-purpose power supply with continuously adjustable voltage and current, high power and good waveform. [0004] The purpose of the present invention is achieved in this way: th...

Claims

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Application Information

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IPC IPC(8): H02M5/06H02M5/257H02M3/335H02M5/293H02M7/06H02M7/537
CPCY02B70/1475Y02B70/10
Inventor 章祖文
Owner 章祖文
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