CN209673953U - A kind of test circuit of power supply IC product - Google Patents
A kind of test circuit of power supply IC product Download PDFInfo
- Publication number
- CN209673953U CN209673953U CN201920128478.0U CN201920128478U CN209673953U CN 209673953 U CN209673953 U CN 209673953U CN 201920128478 U CN201920128478 U CN 201920128478U CN 209673953 U CN209673953 U CN 209673953U
- Authority
- CN
- China
- Prior art keywords
- switch
- feet
- voltage source
- power supply
- meet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
The utility model discloses a kind of test circuits of power supply IC product in chip manufacturing field, including chip PR6863 to be measured and five voltage sources, 1 foot of chip to be measured is grounded, 2 feet meet first voltage source VFB through first switch K1, 3 foot floatings, 4 feet meet the second voltage source VCS, 5 feet connect 6 feet and meet tertiary voltage source VDD, 6 feet meet the 4th power supply source VGATE through third switch K3, the first resistor R1 that 6 feet are also concatenated, 4th switch K4 meets the 5th voltage source VP, the 5th switch K5 that 6 feet are also concatenated, second resistance R2 ground connection, the second switch K2 that 6 feet are also concatenated, second capacitor C2 ground connection, first capacitor C1 is serially connected between third power vd D and ground, chip PR6863 is detected by using the utility model, so that the chip Detection it is more convenient, can be used for PR6863 test in.
Description
Technical field
The utility model relates to a kind of test circuit, in particular to a kind of test circuit of power supply IC product.
Background technique
With the development of electronic technology, especially current portable product prevalence and energy-saving and environment-friendly promotion, power supply IC
The effect of performance is increasing.Though IC is small, there is very important status in electronic product.Just take relatively common hand
For machine charger, power supply IC is depended on to adjust the stabilization of output voltage electric current, while IC also functions to charging and detects and controls and fills
The effect of electrical work, when IC detects that being electrically charged battery has been filled with, IC can automatically cut off charge power supply to protect charging electricity
Pond is not overcharged.Inferior or underpower IC, charger can be hot or even explodes when application, if curtly
The IC of unstable quality is selected, there are biggish security risks.
PR6863 is the current mode controller of a high integration of Power-Rail.Applied to power supply adaptor, opening
The fields such as formula power supply.With high performance, low stand-by power consumption, there is very high cost performance in the application of off-line type flyback.
The frequency of PR6863 is worked under a normal load in fixed 65KHz.In zero load and at light load, into hiccup mode, to reduce
Switching loss reaches low standby and higher efficiency.In addition, the operating current of PR6863 is smaller, this can also reduce standby.
This just needs to carry out PR6863 the detection of accurate quick.
Utility model content
The purpose of the utility model is to provide a kind of test circuits of power supply IC product, so as to the detection side chip PR6863
Just quick, and precision is higher.
Purpose of the utility model is realized as follows: a kind of test circuit of power supply IC product, including chip to be measured
PR6863E and five voltage source, which is characterized in that 1 foot of the chip to be measured is grounded, and 2 feet connect the first electricity through first switch K1
Potential source VFB, 3 foot floatings, 4 feet meet the second voltage source VCS, and 5 feet connect 6 feet and meet tertiary voltage source VDD, and 6 feet are through third switch K3
The 4th power supply source VGATE is met, first resistor R1, the 4th switch K4 that 6 feet are also concatenated meet the 5th voltage source VP, and 6 feet are also through going here and there
The 5th switch K5, second resistance the R2 ground connection of connection, second switch K2, the second capacitor C2 ground connection that 6 feet are also concatenated, the third
First capacitor C1 is serially connected between power vd D and ground.
As further limiting for the utility model, five voltage sources are correspondingly arranged on monitoring line, and monitor line
Both threads are separately used with source line.
As further limiting for the utility model, first switch K1, second switch K2, third switch K3, the 4th switch
Relay switch can be selected in K4, the 5th switch K5, and third switch K3, the 4th switch K4, the 5th switch K5 are normal open switch.
Compared with prior art, the beneficial effects of the utility model are, by using the utility model to chip
PR6863 is detected, so that the detection of the chip is more convenient.
Detailed description of the invention
Fig. 1 is the utility model circuit diagram.
Specific embodiment
A kind of test circuit of power supply IC product as shown in Figure 1, including chip PR6863E to be measured and five voltage sources,
It is characterized in that, 1 foot of chip to be measured is grounded, 2 feet meet first voltage source VFB, 3 foot floatings through first switch K1, and 4 feet connect second
Voltage source VCS, 5 feet connect 6 feet and meet tertiary voltage source VDD, and 6 feet meet the 4th power supply source VGATE through third switch K3, and 6 feet also pass through
Concatenated first resistor R1, the 4th switch K4 meet the 5th voltage source VP, the 5th switch K5, the second resistance R2 that 6 feet are also concatenated
Ground connection, second switch K2, the second capacitor C2 ground connection that 6 feet are also concatenated, is serially connected with first capacitor between third power vd D and ground
C1, five voltage sources are correspondingly arranged on monitoring line, and monitor line and separately use both threads, first switch K1, second with source line
Relay switch, third switch K3, the 4th switch can be selected in switch K2, third switch K3, the 4th switch K4, the 5th switch K5
K4, the 5th switch K5 are normal open switch.
When utility model works, test item is as follows: with test condition
。
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (3)
1. a kind of test circuit of power supply IC product, including chip PR6863 to be measured and five voltage sources, which is characterized in that described
1 foot of chip to be measured is grounded, and 2 feet meet first voltage source VFB, 3 foot floatings through first switch K1, and 4 feet meet the second voltage source VCS, and 5
Foot connects 6 feet and meets tertiary voltage source VDD, and 6 feet connect the 4th voltage source VGATE, the first electricity that 6 feet are also concatenated through third switch K3
Resistance R1, the 4th switch K4 meet the 5th voltage source VP, and the 5th switch K5, second resistance the R2 ground connection that 6 feet are also concatenated, 6 feet also pass through
Concatenated second switch K2, the second capacitor C2 ground connection, are serially connected with first capacitor C1 between the tertiary voltage source VDD and ground.
2. a kind of test circuit of power supply IC product according to claim 1, which is characterized in that five voltage sources are equal
It is correspondingly arranged on monitoring line, and monitors line and separately uses both threads with source line.
3. a kind of test circuit of power supply IC product according to claim 1, which is characterized in that first switch K1, second
Relay switch, third switch K3, the 4th switch can be selected in switch K2, third switch K3, the 4th switch K4, the 5th switch K5
K4, the 5th switch K5 are normal open switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128478.0U CN209673953U (en) | 2019-01-25 | 2019-01-25 | A kind of test circuit of power supply IC product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128478.0U CN209673953U (en) | 2019-01-25 | 2019-01-25 | A kind of test circuit of power supply IC product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209673953U true CN209673953U (en) | 2019-11-22 |
Family
ID=68567107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920128478.0U Active CN209673953U (en) | 2019-01-25 | 2019-01-25 | A kind of test circuit of power supply IC product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209673953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578254A (en) * | 2020-12-08 | 2021-03-30 | 葛正宏 | double-MOS tube testing method |
-
2019
- 2019-01-25 CN CN201920128478.0U patent/CN209673953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578254A (en) * | 2020-12-08 | 2021-03-30 | 葛正宏 | double-MOS tube testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109066940B (en) | Charging control method, circuit, charger and electric tool | |
| CN103607009B (en) | A kind of charge-discharge circuit with automatic protection functions | |
| US9882411B2 (en) | Lithium-ion battery and charge/discharge control method | |
| CN101882879A (en) | Circuit converting constant current source to constant voltage source and light using same | |
| CN106558980B (en) | A kind of enabled control circuit | |
| CN102843051B (en) | Power supply adaptor | |
| CN202817694U (en) | Charging protective circuit for USB socket and USB socket | |
| CN102999143A (en) | Intelligent control circuit of power adapter of notebook computer | |
| CN206547012U (en) | Charging circuit and electronic equipment | |
| CN209673953U (en) | A kind of test circuit of power supply IC product | |
| CN105098957B (en) | A kind of controller for solar circuit | |
| CN206698005U (en) | Dual input double startup exports voltage regulation type uninterrupted switch power supply | |
| CN205791592U (en) | There is the DC UPS identifying function | |
| CN216872881U (en) | Universal dual-power management circuit | |
| CN207426665U (en) | Current transformer and its secondary side protective arrangement for limiting output voltage | |
| CN206364558U (en) | A kind of portable digital charger | |
| CN206575202U (en) | A kind of power supply adaptor | |
| US20040201278A1 (en) | Charging circuit in uninterruptible power supply system | |
| CN202546692U (en) | Portable flashlight with charging function | |
| CN202975963U (en) | Power adapter intelligent control circuit of laptop | |
| CN201188546Y (en) | Portable mobile power supply | |
| CN206388985U (en) | A kind of multi-function rotating wiring | |
| CN204243834U (en) | A kind of charging circuit of ZigBee terminal equipment | |
| CN107124025A (en) | One kind is used for many quickly charging batteries of emergency light and battery check device and method | |
| CN207652104U (en) | A kind of battery charger protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |