Step-up DC voltage regulator
By introducing an additional winding and capacitor configuration in the magnetic element, the constant voltage regulator achieves high output voltage regulation within a narrower range with smooth current consumption, addressing inefficiencies in existing regulators.
Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Patents
- Current Assignee / Owner
- OBSHCHESTVO S OGRANICHENNOI OTVETSTVENNOSTIU INPUT TRANSFORMEISHN AUTPUT KORPOREISHN
- Filing Date
- 2025-12-29
- Publication Date
- 2026-06-30
AI Technical Summary
Existing constant voltage regulators that increase output voltage struggle to regulate within a narrower range, particularly at lower D values, leading to inefficiencies.
A second additional winding is introduced into the magnetic element, connected oppositely through a capacitor, with specific connections to a shunt diode and filter capacitor, allowing for a high output voltage generation within a reduced control range while ensuring smooth current consumption.
The solution enables generation of high output voltage within a narrower regulation range with smooth, pulsation-free current consumption from the input DC voltage source.
Smart Images
Figure 00000001_ABST
Abstract
Description
[0001] The invention relates to electrical engineering, in particular to constant voltage regulators and can be used in secondary power supply systems for regulating and stabilizing constant output voltage.
[0002] DC voltage regulators are known that increase the output voltage in relation to the input DC voltage [1].
[0003] A disadvantage of known constant voltage regulators that increase the output voltage in relation to the input constant voltage is the inability to regulate the voltage in a narrower regulation range, i.e. at lower D values.
[0004] The closest in technical essence to the proposed device is a step-up DC voltage regulator [1].
[0005] The purpose of the invention is to generate a high output voltage in a reduced control range.
[0006] The stated objective is achieved by the fact that a second additional winding is introduced into the magnetic element, connected in opposite direction through an additionally introduced capacitor, wherein the first winding of the magnetic element is connected with its beginning to the positive pole of the input direct voltage, the second winding is connected with its beginning to the positive pole of the filter capacitor with a parallel-connected load, the second pole of which is connected to the negative pole of the direct input voltage, and the end of the first winding of the magnetic element is connected to the anode of the shunt diode, the cathode of which is connected to the beginning of the second winding of the magnetic element, the beginning of which is connected to the positive pole of the regulating key.
[0007] Fig. 1 shows the basic electrical circuit diagram of the proposed step-up DC voltage regulator.
[0008] Fig. 2 shows the basic electrical circuit diagram of the proposed step-up DC voltage regulator with additional linear inductance.
[0009] It (Fig. 1) has a control key 1, a linear inductance 2 containing two windings 3,4, the first winding 3 of which is connected by its beginning to the positive terminal of the input DC voltage source, by its end to the first pole of the capacitor 5, the second pole of which is connected to the positive pole of the control key 1, the negative pole of which is connected to the negative terminal of the input DC voltage source, forming a common bus, and the second winding 4 is connected by its end to the positive pole of the control key 1, by its beginning to the first pole of the filter capacitor 6 with a parallel-connected load 7, the second pole of which is connected to the common bus, and the common connection point of the end of the first winding 3 with the capacitor 5 is connected to the anode of the shunt diode 8, the cathode of which is connected to the first pole of the filter capacitor 6.
[0010] We will consider the operating principle of the proposed step-up DC voltage regulator based on the assumption of the ideality of the key elements, the steady-state operating mode, and the continuity of the change in the magnetic flux in the core of the magnetic element 2.
[0011] Let us denote by D the duration of the on state of the regulating switch 1 relative to the period T.
[0012] When the control switch 1 is closed, during the time DT, the process of accumulation of magnetic energy in the magnetic element occurs along the first winding 3 from the input DC voltage source and capacitor 5, and along the second winding 4 from the filter capacitor 6.
[0013] After the regulating key 1 is turned off, the polarity of the emf on all windings of the magnetic element is reversed and the shunt diode 8 is turned on, which is in a conducting state for a time of (1-D)T, through which the capacitor 5 is charged to a voltage of V IND / (1-2D), first filter capacitor 6 to voltage V IN (1-D) / (1-2D), and voltage V is set on the control key 1 IN / (1-2D).
[0014] By introducing an additional linear inductance 9 in series with the first winding 3 of Fig. 2, a smooth, pulsation-free current consumption from the input DC voltage source is ensured.
[0015] Thus, the proposed step-up DC voltage regulator generates a high output voltage in the regulation range D≤0.5 with simultaneous smooth, pulsation-free current consumption from the DC input voltage source.
[0016] 1. Polikarpov A.G., Sergienko E.F. Single-stroke converters in power supply devices of electronic equipment, “Radio and Communications”, 1989, p.6 fig.1.2.
Claims
1. A step-up DC voltage regulator comprising a linear inductance with its first pole connected to the positive terminal of the DC input source, with its other pole connected through a regulating switch to the negative terminal of the DC input source, forming a common bus, a shunt diode connected with its anode to the common connection point of the linear inductance with the regulating switch, and with its cathode to an output capacitor forming the output voltage with a parallel-connected load, the second pole of which is connected to the common bus, characterized in that in the step-up DC voltage regulator the linear inductance is made in the form of a two-winding linear inductance, the first winding of which is connected at the beginning to the positive terminal of the DC input source, with the end to the first pole of the capacitor, the second pole of which is connected to the regulating switch connected to the common bus,the second winding introduced is connected with its end to the positive pole of the regulating key, the negative pole of which is connected to the common bus, and with its beginning to the positive pole of the filter capacitor with a parallel-connected load, the second pole of which is connected to the common bus, the end of the first winding is connected to the anode of the shunt diode, the cathode of which is connected to the beginning of the second winding.
2. A step-up DC voltage regulator according to paragraph 1, characterized in that an additional linear inductance is connected in series with the first winding of the two-winding linear inductance.