PATENT CLAIM ANALYSIS

Application Number: 16391697
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-08
Patent Classification: ["323", "282000"]

Abstract:
A wide-range positive-negative adjustable high-voltage DC power supply includes the following components: a high-voltage generator, a negative high-voltage terminal, and a positive high-voltage terminal; a first driving circuit, a first voltage regulating unit, a current detection and amplification circuit, a second driving circuit and a second voltage regulating unit that are connected in turn; and an adjustable high-voltage output terminal; as well as an instruction input terminal, an instruction voltage circuit and an error amplifier that are connected in turn, and a voltage feedback circuit.

Claim (Index 9):
A method of controlling the wide-range positive-negative adjustable high-voltage DC power supply according to  claim 1 , comprising the following steps:\n step 1: producing positive and negative high voltages through the high-voltage generator, wherein the positive and negative high voltages are respectively sent to the positive high-voltage terminal and the negative high-voltage terminal, wherein the voltage value of the positive high-voltage terminal is greater than the upper limit value of the output voltage regulation range of the wide-range positive-negative adjustable high-voltage DC power supply, and the voltage value of the negative high-voltage terminal is less than the lower limit value thereof; step 2: inputting a PWM voltage regulation instruction by the instruction input terminal; step 3: converting the PWM voltage regulation instruction into an instruction voltage by the instruction voltage circuit; step 4: comparing and amplifying the instruction voltage with the feedback voltage from the voltage feedback circuit the error amplifier, and sending the operation results to the first driving circuit, and driving the first voltage regulating unit to adjust the voltage through the first driving circuit; step 5: detecting the emitter current of the PNP transistor Q 1 - 1  in the first voltage regulating unit, and amplifying the detection results through the current detection and amplification circuit before sending them into the second driving circuit, and driving the second voltage regulating unit to participate in the voltage regulation through the second driving circuit; wherein the amplification factor of the current detection and amplification circuit should satisfy the following conditions: if the emitter current of the PNP transistor Q 1 - 1  in the first voltage regulating unit is recorded as I 1 , which has a maximum value of I 1M , then: when I 1 \u22650.1I 1M , the NPN transistor Q 2 - 1  in the second voltage regulating unit is driven to enter an off state; when 0<I 1 <0.1I 1M , the NPN transistor Q 2 - 1  in the second voltage regulating unit is driven to enter an amplification region to participate in the voltage regulation; and when I 1 =0, the emitter current of the NPN transistor Q 2 - 1  in the second voltage regulating unit is driven to reach its maximum value; step 6: sampling and feeding back to the error amplifier the output voltage of the wide-range positive-negative adjustable high-voltage DC power supply by the voltage feedback circuit, comparing the output voltage with the instruction voltage, and controlling the output voltage to meet the instruction requirements after operation by the error amplifier.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 100.0
- Lexical Diversity: 2.1087
- Patent Class: 323.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15674551', '15667796', '15166070', '14828534', '11482020']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7317588288081892
- 35 USC 102 Novelty (BERT): 0.5287147836983629
- Combined Prediction Score: 0.7114544242972066
- Mean Citation Score: 255.587898
- Max Citation Score: 373.06186
- Similarity Product: 325.7867231144691

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test