CN-224233549-U - Surplus electric quick bleeder circuit suitable for high-voltage input

Abstract

The utility model discloses a residual electricity quick bleeder circuit suitable for high-voltage input, which belongs to the technical field of power electronics and comprises a voltage stabilizing diode, a first triode and a second triode, wherein the voltage stabilizing diode, the first resistor and the second resistor are sequentially connected in series to form a first-stage voltage dividing circuit, the first-stage voltage dividing circuit is used for controlling the second triode, a sixth resistor, a third resistor, a fourth resistor and a fifth resistor are sequentially connected in series to form a second-stage voltage dividing circuit, the second-stage voltage dividing circuit is used for controlling the first triode, and two ends of the first-stage voltage dividing circuit and the second-stage voltage dividing circuit are respectively connected between a positive electrode of a power supply and a negative electrode of the power supply. Compared with the prior art, the residual electric quick bleeder circuit is used as a part of a direct-current high-voltage power supply, when the input end of the direct-current power supply is powered off, the bleeder circuit is used as a bleeder circuit to realize the bleeder of the input voltage, so that the time required by the bleeder of the input voltage can be effectively reduced, and the working reliability is improved.

Inventors

• Wang meisi
• Xin shuai
• HE YUAN
• LI KETAO

Assignees

• 西安市新雷能电子科技有限责任公司

Dates

Publication Date

20260512

Application Date

20250528

Claims (4)

1. 1. Residual electricity quick bleeder circuit suitable for high voltage input, its characterized in that includes zener diode (VD 1), first triode (VT 1), second triode (VT 2), first resistance (R1), second resistance (R2), third resistance (R3), fourth resistance (R4), fifth resistance (R5) and sixth resistance (R6), wherein: The voltage stabilizing diode (VD 1), the first resistor (R1) and the second resistor (R2) are sequentially connected in series to form a primary voltage dividing circuit, and two ends of the primary voltage dividing circuit are respectively connected between a positive electrode (VIN+) and a negative electrode (VIN-); The sixth resistor (R6), the third resistor (R3), the fourth resistor (R4) and the fifth resistor (R5) are sequentially connected in series to form a second-level voltage dividing circuit, and two ends of the second-level voltage dividing circuit are respectively connected between a positive electrode (VIN+) of a power supply and a negative electrode (VIN-); The base electrode of the second triode (VT 2) is connected to a line between the first resistor (R1) and the second resistor (R2), the collector electrode of the second triode (VT 2) is connected to a line between the third resistor (R3) and the fourth resistor (R4), and the emitter electrode of the second triode (VT 2) is connected to the negative electrode (VIN-); the base electrode of the first triode (VT 1) is connected to a circuit between the fourth resistor (R4) and the fifth resistor (R5), the collector electrode of the first triode (VT 1) is connected to a circuit between the sixth resistor (R6) and the third resistor (R3), and the emitter electrode of the first triode (VT 1) is connected to the negative electrode (VIN-).
2. 2. The residual electricity quick release circuit suitable for high-voltage input according to claim 1, wherein a cathode of the zener diode (VD 1) is connected with a positive power supply (vin+), and an anode of the zener diode (VD 1) is connected with a negative power supply (VIN-) sequentially through a first resistor (R1) and a second resistor (R2).
3. 3. The residual current flash tank circuit for high voltage input according to claim 1, wherein the zener diode (VD 1) is a 36V to 48V zener diode.
4. 4. The residual current flash tank circuit according to claim 1, characterized in that said sixth resistance (R6) is a resistance of 2K to 2.5K ohms.

Description

Surplus electric quick bleeder circuit suitable for high-voltage input Technical Field The utility model belongs to the technical field of power electronics, and particularly relates to a residual electricity quick bleeder circuit suitable for high-voltage input. Background The existing input voltage discharging mode is to realize the discharging of the input voltage by taking the line impedance of the input end as a discharging loop. When the voltage of the input end is disconnected, the input end has a filter capacitor with larger capacity, so that the input voltage is slowly reduced, the time required for completely discharging the voltage to zero is longer, and if the power is repeatedly applied in a short time, the risk of unstable working state exists. How to use only the basic elements to replace the existing foreign technical scheme and effectively reduce the time required by the input voltage release becomes a technical problem in the field. Disclosure of utility model Aiming at the technical problems, the utility model provides a residual electricity quick bleeder circuit suitable for high-voltage input, which solves the problems by the following technical means: A residual electricity quick bleeder circuit suitable for high-voltage input is characterized by comprising a voltage stabilizing diode, a first triode, a second triode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor, wherein the voltage stabilizing diode, the first resistor and the second resistor are sequentially connected in series to form a primary voltage dividing circuit, two ends of the primary voltage dividing circuit are respectively connected between a positive electrode of a power supply and a negative electrode of the power supply, the sixth resistor, the third resistor, the fourth resistor and the fifth resistor are sequentially connected in series to form a secondary voltage dividing circuit, two ends of the secondary voltage dividing circuit are respectively connected between a positive electrode of the power supply and a negative electrode of the power supply, a base electrode of the second triode is connected on a circuit between the first resistor and the second resistor, a collector electrode of the second triode is connected on a circuit between the third resistor and the fourth resistor, an emitter electrode of the second triode is connected on a circuit between the fourth resistor and the fifth resistor, and a collector electrode of the first triode is connected on a circuit between the sixth resistor and the negative electrode of the power supply. Preferably, the cathode of the zener diode is connected with the positive electrode of the power supply, and the anode of the zener diode is connected with the negative electrode of the power supply through the first resistor and the second resistor in sequence. Preferably, the zener diode is a 36V to 48V zener diode. Preferably, the sixth resistance is a resistance of 2K to 2.5K ohms. The residual electricity quick bleeder circuit suitable for high-voltage input has the following beneficial effects: The residual electric quick bleeder circuit is used as a part of a direct-current high-voltage power supply, when the input end of the direct-current power supply is powered off, input voltage bleeder is realized by taking the circuit impedance of the input end of the residual electric quick bleeder circuit as a bleeder circuit, the time required by bleeder of the input voltage can be effectively reduced, and the working reliability is improved. In addition, the circuit is formed by using only basic components, does not depend on the foreign prior art scheme, and peripheral components can be flexibly configured so as to realize rapid discharge of different direct current input voltages, thereby improving the practicability of products. Drawings In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic diagram of the overall circuit of the present utility model. Detailed Description In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operate