Frequency modulation type constant-voltage output power supply based on high-voltage absorption circuit

A technology of absorbing circuit and constant voltage output, applied in the field of electronics, can solve the problems of unstable output voltage, low power supply stability, easy to be affected by mains fluctuations, etc., to achieve the effect of improving safety performance, stable voltage and frequency, and good power supply

CN106026655AInactive Publication Date: 2016-10-12成都特普瑞斯节能环保科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-10-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a frequency-modulated constant-voltage output power supply based on a high-voltage absorption circuit, which is characterized in that: a transformer T, a diode D1, and a triode VT5 are respectively connected to the primary-side inductance coil L1 and the primary-side inductance coil L2 of the transformer T. Connected base trigger circuit and so on. The present invention can monitor the input voltage and adjust the voltage in real time to keep the voltage within a constant range. In this way, even if the mains fluctuates, the present invention can also output a constant voltage; the present invention can also adjust the voltage frequency Adjustment is made to make the frequency of the output voltage more stable, so that the present invention can better supply power to electronic equipment. At the same time, the present invention can also absorb the induced voltage on the transformer coil when the power is cut off, prevent high voltage from breaking down the electronic components in the system, and improve the safety performance of the present invention.
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Description

Technical field

[0001] The invention relates to the field of electronics, in particular to a frequency modulation type constant voltage output power supply based on a high voltage absorption circuit. Background technique

[0002] With the rapid development of electronic technology, there are more and more types of electronic equipment, which brings great pleasure to people's lives. Any electronic device is inseparable from a reliable power source. At present, the functions of electronic devices are becoming more and more diversified, and their requirements for power sources are getting higher and higher. However, current power supplies have low stability and are easily affected by mains fluctuations, resulting in unstable output voltage, which seriously affects the service life of electronic devices. Summary of the invention

[0003] The purpose of the present invention is to solve the defect of low stability of the current power supply and provide a frequency-modulated constant-...

Examples

Embodiment

[0019] Such as figure 1 As shown, the present invention mainly consists of a transformer T, a diode D1, a transistor VT5, and a base trigger circuit respectively connected to the primary inductor coil L1 and the primary inductor coil L2 of the transformer T, one end is connected to the base trigger circuit, and the other One end and the P pole of the diode D1 together form the input resistor R1, the positive pole is connected to the non-identical end of the secondary inductor L2 of the transformer T, and the negative pole is connected to the collector of the transistor VT5 through the resistor R6. The capacitor C6 is respectively connected with The sampling circuit connected to the triode VT5 and the base trigger circuit, and the frequency modulation circuit connected to the sampling circuit and the base trigger circuit respectively, are connected in series to the high voltage between the same-named end and the non-same-named end of the primary inductor coil L2 of the transformer...