High-voltage output stage integrated circuit

An integrated circuit, high-voltage output technology, applied in the direction of output power conversion device, DC power input conversion to DC power output, electrical components, etc., to achieve the effect of great practical value and promotion value

CN107196502AInactive Publication Date: 2017-09-22XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-09-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a high-voltage output stage integrated circuit. The integrated circuit comprises a filter circuit and a modulation circuit; the filter circuit is connected with a RC (Resistance-capacitance) circuit in series, so as to filter out medium-high frequency clutters; the voltage is inputted into the modulation circuit after the voltage is stabilized and the proportion is amplified by an operational amplifier; the modulation circuit modulates the amplitude and outputs stable voltage by a thyristor and a three-end voltage-regulator tube; negative electrodes of the thyristor D4 and the thyristor D6 are divided into two paths to receive the voltage of the filter circuit; one path is connected with a capacitor C4 in series, so as to filter out the direct-current voltage in the alternating voltage by using the characteristic of circulating the alternating current and blocking the direct current of the capacitor C4; the other end of the capacitor C4 is connected with a negative electrode of the thyristor D5 and a control electrode of a three-end silicon controlled rectifier Q1; the thyristor D5 protects the circuit; if the potential of the control electrode of the three-end silicon controlled rectifier Q1 is too high, the three-end silicon controlled rectifier Q1 is reversely conducted to be connected with the ground; if the potential is too low, the three-end silicon controlled rectifier Q1 is not triggered to be conducted; in the same way, a same circuit is connected in parallel; the circuit consists of the thyristor D6 and a thyristor D7, a capacitor C5 and a three-end silicon controlled rectifier Q2. The integrated circuit effectively stabilizes the output voltage of the high-voltage integrated circuit, filters the frequency, and effectively regulates the abnormal voltage.
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Description

technical field

[0001] The invention relates to the field of circuit technology, in particular to a high-voltage output stage integrated circuit. Background technique

[0002] At present, integrated circuits are widely used in factories and daily life, but the voltage of high-voltage integrated circuits is unstable. Using a voltage regulator can stabilize the voltage, but it cannot effectively filter out clutter and control abnormal voltages. High-voltage integrated circuits Once the output voltage is unstable or the clutter cannot be filtered out, it will have a great impact on the function of the entire integrated circuit chip, and even damage the integrated circuit chip.

[0003] So the present invention provides a new solution to solve this problem. Contents of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a high-voltage output stage integrated circuit, which...

Examples

Embodiment 1

[0015] Embodiment 1, a high-voltage output stage integrated circuit, including a filter circuit and an amplitude modulation circuit, the filter circuit is connected in series with an RC circuit to filter out medium and high frequency clutter, and at the same time, the voltage is stabilized and proportionally amplified by an operational amplifier and input to the amplitude modulation circuit, and the amplitude modulation circuit uses a thyristor And three-terminal thyristor amplitude modulation output stable voltage;

[0016] The amplitude modulation circuit uses the negative poles of the thyristors D4 and D6 to receive the voltage of the receiving filter circuit in two ways, and a capacitor C4 is connected in series in one way, and the DC voltage in the AC voltage is filtered out by using the characteristics of the capacitor C4 to communicate with the DC voltage, and the other end of the capacitor C4 is connected to The negative pole of the thyristor D5 and the control pole of ...

Embodiment 2

[0017] Embodiment 2. On the basis of Embodiment 1, the filter circuit uses resistors R1, R2 and R3 to divide the voltage. Since the voltage input port receives a high-voltage signal, it can be filtered by the RC circuit after the voltage division process to achieve filtering. For the effect of medium and high frequency harmonics, in order to protect the circuit, diodes D1~D3 are designed to protect the circuit. In order to ensure that the frequency and amplitude of the voltage remain unchanged, op amps AR1 and AR2 are designed to amplify the ratio to maintain the frequency and amplitude of the voltage. No change; one end of resistor R1 is connected to one end of resistor R3 and the voltage input port, the other end of resistor R1 is connected to resistor R2, one end of capacitor C1 and the cathode of diode D1, the anode of diode D1 is connected to the anode of diode D2, and the cathode of diode D2 Connect the non-inverting input terminal of the operational amplifier AR1, the in...